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  4. fatal error C1060: compiler is out of heap space (again)

fatal error C1060: compiler is out of heap space (again)

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  • I IgKh

    @Sprezzatura That's not what I asked. I didn't ask which file the error message points to, but rather during the compilation of which of your project files does the error happen? In C++ each project source file is compiled separately as a different compilation unit, re-parsing the header files (unless using pch).

    Just post the entire build output if you don't know.

    SprezzaturaS Offline
    SprezzaturaS Offline
    Sprezzatura
    wrote last edited by Sprezzatura
    #7

    @IgKh Sorry, it looks like the error arises when compiling the first 21 .CPP files. Then the next 7 .CPP don't have the error. Then I see:

    jom: C:\Progeny\CC_Qt\build\Desktop_Qt_6_9_0_MSVC2022_64bit-Debug\Makefile.Debug [debug\PG065.obj] Error 2
    jom: C:\Progeny\CC_Qt\build\Desktop_Qt_6_9_0_MSVC2022_64bit-Debug\Makefile.Debug [debug\PG013.obj] Error 2
    jom: C:\Progeny\CC_Qt\build\Desktop_Qt_6_9_0_MSVC2022_64bit-Debug\Makefile.Debug [debug\PG034.obj] Error 2
    jom: C:\Progeny\CC_Qt\build\Desktop_Qt_6_9_0_MSVC2022_64bit-Debug\Makefile.Debug [debug\PG_IOPL.obj] Error 2
    jom: C:\Progeny\CC_Qt\build\Desktop_Qt_6_9_0_MSVC2022_64bit-Debug\Makefile.Debug [debug\PG021.obj] Error 2
    jom: C:\Progeny\CC_Qt\build\Desktop_Qt_6_9_0_MSVC2022_64bit-Debug\Makefile.Debug [debug\PG028.obj] Error 2
    jom: C:\Progeny\CC_Qt\build\Desktop_Qt_6_9_0_MSVC2022_64bit-Debug\Makefile.Debug [debug\PG030.obj] Error 2
    jom: C:\Progeny\CC_Qt\build\Desktop_Qt_6_9_0_MSVC2022_64bit-Debug\Makefile.Debug [debug\PG031.obj] Error 2
    jom: C:\Progeny\CC_Qt\build\Desktop_Qt_6_9_0_MSVC2022_64bit-Debug\Makefile.Debug [debug\PG059.obj] Error 2
    jom: C:\Progeny\CC_Qt\build\Desktop_Qt_6_9_0_MSVC2022_64bit-Debug\Makefile.Debug [debug\PG078.obj] Error 2
    jom: C:\Progeny\CC_Qt\build\Desktop_Qt_6_9_0_MSVC2022_64bit-Debug\Makefile.Debug [debug\PG093.obj] Error 2
    jom: C:\Progeny\CC_Qt\build\Desktop_Qt_6_9_0_MSVC2022_64bit-Debug\Makefile.Debug [debug\PG093B.obj] Error 2
    jom: C:\Progeny\CC_Qt\build\Desktop_Qt_6_9_0_MSVC2022_64bit-Debug\Makefile.Debug [debug\PG093C.obj] Error 2
    jom: C:\Progeny\CC_Qt\build\Desktop_Qt_6_9_0_MSVC2022_64bit-Debug\Makefile.Debug [debug\PG096.obj] Error 2
    jom: C:\Progeny\CC_Qt\build\Desktop_Qt_6_9_0_MSVC2022_64bit-Debug\Makefile.Debug [debug\PG096W.obj] Error 2
    jom: C:\Progeny\CC_Qt\build\Desktop_Qt_6_9_0_MSVC2022_64bit-Debug\Makefile.Debug [debug\PG106.obj] Error 2
    jom: C:\Progeny\CC_Qt\build\Desktop_Qt_6_9_0_MSVC2022_64bit-Debug\Makefile.Debug [debug\PG121.obj] Error 2
    jom: C:\Progeny\CC_Qt\build\Desktop_Qt_6_9_0_MSVC2022_64bit-Debug\Makefile.Debug [debug\PG125.obj] Error 2
    jom: C:\Progeny\CC_Qt\build\Desktop_Qt_6_9_0_MSVC2022_64bit-Debug\Makefile.Debug [debug\PG129.obj] Error 2
    jom: C:\Progeny\CC_Qt\build\Desktop_Qt_6_9_0_MSVC2022_64bit-Debug\Makefile.Debug [debug\PG131.obj] Error 2
    jom: C:\Progeny\CC_Qt\build\Desktop_Qt_6_9_0_MSVC2022_64bit-Debug\Makefile [debug] Error 2
    

    Here's a typical error message:

    PG065.CPP
    C:\Qt\6.9.0\msvc2022_64\include\QtCore/qabstracteventdispatcher.h(18): fatal error C1060: compiler is out of heap space
    	cl -c -nologo -Zc:wchar_t -FS -std:c++17 -Zc:__cplusplus -permissive- /Zm2000 -Zi -MDd -utf-8 -W0 /Fddebug\CC9.vc.pdb -DUNICODE -D_UNICODE -DWIN32 -D_ENABLE_EXTENDED_ALIGNED_STORAGE -DWIN64 -DCC_MATE -DQT_WIDGETS_LIB -DQT_HELP_LIB -DQT_PRINTSUPPORT_LIB -DQT_UITOOLS_LIB -DS4STAND_ALONE -DVERSION_MAJOR=9 -DVERSION_MINOR=0 -DVERSION_BUILD=7 -D_CRT_SECURE_NO_WARNINGS -DWIN32 -DS4WIN32 -D_MBCS -DS4FOX -DQT_QML_DEBUG -DQT_HELP_LIB -DQT_UITOOLS_LIB -DQT_OPENGLWIDGETS_LIB -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_OPENGL_LIB -DQT_GUI_LIB -DQT_SQL_LIB -DQT_NETWORK_LIB -DQT_XML_LIB -DQT_CORE_LIB -Fodebug\PG_IOPL.obj C:\---\sandbox\CodeBase6\PG_IOPL.CPP
    
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    0
    • hskoglundH Offline
      hskoglundH Offline
      hskoglund
      wrote last edited by
      #8

      If you compile in release mode, do you still get the same compiler error?
      (Also, when compiling in debug mode, try removing that -FS option.)

      SprezzaturaS 1 Reply Last reply
      0
      • SprezzaturaS Sprezzatura

        @Christian-Ehrlicher I am using a 64-bit compiler. Compiling for 64-bit executable.

        Christian EhrlicherC Offline
        Christian EhrlicherC Offline
        Christian Ehrlicher
        Lifetime Qt Champion
        wrote last edited by
        #9

        @Sprezzatura said in fatal error C1060: compiler is out of heap space (again):

        I am using a 64-bit compiler. Compiling for 64-bit executable.

        Then you will not get this error.
        What does 'where cl' prints out?

        Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
        Visit the Qt Academy at https://academy.qt.io/catalog

        SprezzaturaS 3 Replies Last reply
        1
        • hskoglundH hskoglund

          If you compile in release mode, do you still get the same compiler error?
          (Also, when compiling in debug mode, try removing that -FS option.)

          SprezzaturaS Offline
          SprezzaturaS Offline
          Sprezzatura
          wrote last edited by
          #10

          @hskoglund I get the same errors in Release mode.

          The "/FS" is generated by Qt, not sure how to suppress it.
          "/FS-"?

          1 Reply Last reply
          0
          • Christian EhrlicherC Christian Ehrlicher

            @Sprezzatura said in fatal error C1060: compiler is out of heap space (again):

            I am using a 64-bit compiler. Compiling for 64-bit executable.

            Then you will not get this error.
            What does 'where cl' prints out?

            SprezzaturaS Offline
            SprezzaturaS Offline
            Sprezzatura
            wrote last edited by Sprezzatura
            #11

            @Christian-Ehrlicher Not sure where to enter "where cl". The Terminal Window returns:

            INFO: Could not find files for the given pattern(s)
            

            The compiler I am using, according to the "Manake Kits" section, is:

            Microsoft Visual C++ Compiler 17.12.35527.113 (amd64)

            Not (x86), not (amd64_x86), not (x86_amd64), nor anything containing "arm".

            To reiterate, it compiles successfully under Qt 5.15 + VS 2019.

            BTW thank you for your help and patience :o)

            1 Reply Last reply
            0
            • Christian EhrlicherC Christian Ehrlicher

              @Sprezzatura said in fatal error C1060: compiler is out of heap space (again):

              I am using a 64-bit compiler. Compiling for 64-bit executable.

              Then you will not get this error.
              What does 'where cl' prints out?

              SprezzaturaS Offline
              SprezzaturaS Offline
              Sprezzatura
              wrote last edited by
              #12

              @Christian-Ehrlicher Here's the output from "vswhere":

              instanceId: 1b580a97
              installDate: 12 Apr 2025 9:53:45 AM
              installationName: VisualStudio/15.9.78+36631.12
              installationPath: C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional
              installationVersion: 15.9.36631.12
              productId: Microsoft.VisualStudio.Product.Professional
              productPath: C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\Common7\IDE\devenv.exe
              state: 7
              isComplete: 0
              isLaunchable: 1
              isPrerelease: 0
              isRebootRequired: 0
              displayName: Visual Studio Professional 2017
              description: Professional developer tools and services for small teams
              channelId: VisualStudio.15.Release
              channelUri: https://aka.ms/vs/15/release/channel
              enginePath: C:\Program Files (x86)\Microsoft Visual Studio\Installer\resources\app\ServiceHub\Services\Microsoft.VisualStudio.Setup.Service
              installChannelUri: https://aka.ms/vs/15/release/0e24fba09_-593026118/channel
              installedChannelId: VisualStudio.15.Release
              installedChannelUri: https://aka.ms/vs/15/release/channel
              releaseNotes: https://go.microsoft.com/fwlink/?LinkId=660692#15.9.78
              resolvedInstallationPath: C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional
              thirdPartyNotices: https://go.microsoft.com/fwlink/?LinkId=660708
              updateDate: 2026-01-07T12:09:16.4473894Z
              catalog_buildBranch: d15.9
              catalog_buildVersion: 15.9.36631.12
              catalog_id: VisualStudio/15.9.78+36631.12
              catalog_localBuild: build-lab
              catalog_manifestName: VisualStudio
              catalog_manifestType: installer
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              catalog_productName: Visual Studio
              catalog_productPatchVersion: 78
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              properties_includeRecommended: 0
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              instanceId: 6e3ad4c1
              installDate: 15 Dec 2024 11:42:02 AM
              installationName: VisualStudio/16.11.42+35425.106
              installationPath: C:\Program Files (x86)\Microsoft Visual Studio\2019\Community
              installationVersion: 16.11.35425.106
              productId: Microsoft.VisualStudio.Product.Community
              productPath: C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Common7\IDE\devenv.exe
              state: 4294967295
              isComplete: 1
              isLaunchable: 1
              isPrerelease: 0
              isRebootRequired: 0
              displayName: Visual Studio Community 2019
              description: Powerful IDE, free for students, open-source contributors, and individuals
              channelId: VisualStudio.16.Release
              channelUri: https://aka.ms/vs/16/release/channel
              enginePath: C:\Program Files (x86)\Microsoft Visual Studio\Installer\resources\app\ServiceHub\Services\Microsoft.VisualStudio.Setup.Service
              installedChannelId: VisualStudio.16.Release
              installedChannelUri: https://aka.ms/vs/16/release/channel
              releaseNotes: https://docs.microsoft.com/en-us/visualstudio/releases/2019/release-notes-v16.11#16.11.42
              resolvedInstallationPath: C:\Program Files (x86)\Microsoft Visual Studio\2019\Community
              thirdPartyNotices: https://go.microsoft.com/fwlink/?LinkId=660909
              updateDate: 2024-12-15T15:42:02.8085868Z
              catalog_buildBranch: d16.11
              catalog_buildVersion: 16.11.35425.106
              catalog_id: VisualStudio/16.11.42+35425.106
              catalog_localBuild: build-lab
              catalog_manifestName: VisualStudio
              catalog_manifestType: installer
              catalog_productDisplayVersion: 16.11.42
              catalog_productLine: Dev16
              catalog_productLineVersion: 2019
              catalog_productMilestone: RTW
              catalog_productMilestoneIsPreRelease: False
              catalog_productName: Visual Studio
              catalog_productPatchVersion: 42
              catalog_productPreReleaseMilestoneSuffix: 1.0
              catalog_productSemanticVersion: 16.11.42+35425.106
              catalog_requiredEngineVersion: 2.11.72.18200
              properties_campaignId:
              properties_channelManifestId: VisualStudio.16.Release/16.11.42+35425.106
              properties_includeRecommended: 0
              properties_nickname:
              properties_setupEngineFilePath: C:\Program Files (x86)\Microsoft Visual Studio\Installer\setup.exe
              
              instanceId: a3aac630
              installDate: 03 Jul 2024 6:57:14 PM
              installationName: VisualStudio/17.13.6+35931.197
              installationPath: C:\Program Files\Microsoft Visual Studio\2022\Community
              installationVersion: 17.13.35931.197
              productId: Microsoft.VisualStudio.Product.Community
              productPath: C:\Program Files\Microsoft Visual Studio\2022\Community\Common7\IDE\devenv.exe
              state: 4294967295
              isComplete: 1
              isLaunchable: 1
              isPrerelease: 0
              isRebootRequired: 0
              displayName: Visual Studio Community 2022
              description: Powerful IDE, free for students, open-source contributors, and individuals
              channelId: VisualStudio.17.Release
              channelUri: https://aka.ms/vs/17/release/channel
              enginePath: C:\Program Files (x86)\Microsoft Visual Studio\Installer\resources\app\ServiceHub\Services\Microsoft.VisualStudio.Setup.Service
              installedChannelId: VisualStudio.17.Release
              installedChannelUri: https://aka.ms/vs/17/release/channel
              releaseNotes: https://docs.microsoft.com/en-us/visualstudio/releases/2022/release-notes-v17.13#17.13.6
              resolvedInstallationPath: C:\Program Files\Microsoft Visual Studio\2022\Community
              thirdPartyNotices: https://go.microsoft.com/fwlink/?LinkId=661288
              updateDate: 2025-04-10T19:20:01.9041268Z
              catalog_buildBranch: d17.13
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              properties_setupEngineFilePath: C:\Program Files (x86)\Microsoft Visual Studio\Installer\setup.exe
              
              instanceId: bd038e2e
              installDate: 12 Apr 2025 11:50:29 AM
              installationName: VisualStudio/15.9.78+36631.12
              installationPath: C:\Program Files (x86)\Microsoft Visual Studio\2017\Community
              installationVersion: 15.9.36631.12
              productId: Microsoft.VisualStudio.Product.Community
              productPath: C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\Common7\IDE\devenv.exe
              state: 4294967295
              isComplete: 1
              isLaunchable: 1
              isPrerelease: 0
              isRebootRequired: 0
              displayName: Visual Studio Community 2017
              description: Free, fully-featured IDE for students, open-source and individual developers
              channelId: VisualStudio.15.Release
              channelUri: https://aka.ms/vs/15/release/channel
              enginePath: C:\Program Files (x86)\Microsoft Visual Studio\Installer\resources\app\ServiceHub\Services\Microsoft.VisualStudio.Setup.Service
              installedChannelId: VisualStudio.15.Release
              installedChannelUri: https://aka.ms/vs/15/release/channel
              releaseNotes: https://go.microsoft.com/fwlink/?LinkId=660692#15.9.78
              resolvedInstallationPath: C:\Program Files (x86)\Microsoft Visual Studio\2017\Community
              thirdPartyNotices: https://go.microsoft.com/fwlink/?LinkId=660708
              updateDate: 2026-01-05T21:23:36.7680071Z
              catalog_buildBranch: d15.9
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              catalog_productDisplayVersion: 15.9.78
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              catalog_productMilestone: RTW
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              catalog_productName: Visual Studio
              catalog_productPatchVersion: 78
              catalog_productPreReleaseMilestoneSuffix: 1.0
              catalog_productRelease: RTW
              catalog_productSemanticVersion: 15.9.78+36631.12
              catalog_requiredEngineVersion: 1.18.1063.29791
              properties_appLocalWPF: false
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              properties_channelManifestId: VisualStudio.15.Release/15.9.78+36631.12
              properties_includeRecommended: 0
              properties_nickname: 2
              properties_setupEngineFilePath: C:\Program Files (x86)\Microsoft Visual Studio\Installer\setup.exe
              
              1 Reply Last reply
              0
              • Christian EhrlicherC Christian Ehrlicher

                @Sprezzatura said in fatal error C1060: compiler is out of heap space (again):

                I am using a 64-bit compiler. Compiling for 64-bit executable.

                Then you will not get this error.
                What does 'where cl' prints out?

                SprezzaturaS Offline
                SprezzaturaS Offline
                Sprezzatura
                wrote last edited by
                #13
                This post is deleted!
                1 Reply Last reply
                0
                • Christian EhrlicherC Offline
                  Christian EhrlicherC Offline
                  Christian Ehrlicher
                  Lifetime Qt Champion
                  wrote last edited by
                  #14

                  Sorry I meant where cl.exe

                  Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
                  Visit the Qt Academy at https://academy.qt.io/catalog

                  SprezzaturaS 2 Replies Last reply
                  0
                  • Christian EhrlicherC Christian Ehrlicher

                    Sorry I meant where cl.exe

                    SprezzaturaS Offline
                    SprezzaturaS Offline
                    Sprezzatura
                    wrote last edited by
                    #15

                    @Christian-Ehrlicher

                    where cl.exe
                    INFO: Could not find files for the given pattern(s).
                    
                    1 Reply Last reply
                    0
                    • Christian EhrlicherC Christian Ehrlicher

                      Sorry I meant where cl.exe

                      SprezzaturaS Offline
                      SprezzaturaS Offline
                      Sprezzatura
                      wrote last edited by
                      #16

                      @Christian-Ehrlicher I've found the culprit. If I include the following in the .PRO file:

                      QMAKE_CFLAGS += -Zc:__cplusplus
                      QMAKE_CFLAGS += -permissive-
                      

                      It compiles successfully with Qt 5.15
                      However, when I include this to the .PRO file:

                      QMAKE_CFLAGS += -std:c++17
                      QMAKE_CFLAGS += -Zc:__cplusplus
                      QMAKE_CFLAGS += -permissive-
                      

                      even Qt 5.15 fails with the "Out of Heap Space" error.
                      If I remove this line and try to compile with Qt 6.9, I get:

                      QMAKE_CFLAGS += -std:c++17

                      "Qt requires a C++17 compiler, and a suitable value for __cplusplus. On MSVC, you must pass the /Zc:__cplusplus option to the compiler"
                      

                      Why would this option cause the Out of Heap Space error? Are there other options I need to add?

                      1 Reply Last reply
                      0
                      • Christian EhrlicherC Offline
                        Christian EhrlicherC Offline
                        Christian Ehrlicher
                        Lifetime Qt Champion
                        wrote last edited by Christian Ehrlicher
                        #17

                        You have to call it in the console where you build you Qt... you are using a 32bit compiler.

                        λ where cl
                        C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.44.35207\bin\Hostx64\x64\cl.exe
                        

                        Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
                        Visit the Qt Academy at https://academy.qt.io/catalog

                        SprezzaturaS 1 Reply Last reply
                        0
                        • Christian EhrlicherC Christian Ehrlicher

                          You have to call it in the console where you build you Qt... you are using a 32bit compiler.

                          λ where cl
                          C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.44.35207\bin\Hostx64\x64\cl.exe
                          
                          SprezzaturaS Offline
                          SprezzaturaS Offline
                          Sprezzatura
                          wrote last edited by Sprezzatura
                          #18

                          @Christian-Ehrlicher
                          [1] Here's what is displayed in the Compile Output window when I delete the "-nologo" option:

                          Microsoft (R) C/C++ Optimizing Compiler Version 19.43.34810 for x64
                          Copyright (C) Microsoft Corporation.  All rights reserved.
                          

                          Note the "x64".

                          [2] My .PRO file contains:

                          contains(QT_ARCH, i386) {
                              message("32-bit" $$QT_ARCH $$QT_VERSION)
                          }
                          contains(QT_ARCH, x86_64) {
                              message("64-bit" $$QT_ARCH $$QT_VERSION)
                          }
                          

                          This is displayed in the Compile Output window:

                          Project MESSAGE: 64-bit x86_64 6.9.0
                          

                          [3] I tried creating a new Kit and adding a 32-bit compiler. Qt flat out rejected it.

                          [4] What does the "λ" lambda mean in your example?
                          When you say "the console where you build your Qt", do you mean the Terminal window in Qt Creator?
                          When I do that, I get:

                          >where cl
                          INFO: Could not find files for the given pattern(s).
                          

                          I'm using Windows.

                          Christian EhrlicherC 1 Reply Last reply
                          0
                          • SprezzaturaS Sprezzatura

                            @Christian-Ehrlicher
                            [1] Here's what is displayed in the Compile Output window when I delete the "-nologo" option:

                            Microsoft (R) C/C++ Optimizing Compiler Version 19.43.34810 for x64
                            Copyright (C) Microsoft Corporation.  All rights reserved.
                            

                            Note the "x64".

                            [2] My .PRO file contains:

                            contains(QT_ARCH, i386) {
                                message("32-bit" $$QT_ARCH $$QT_VERSION)
                            }
                            contains(QT_ARCH, x86_64) {
                                message("64-bit" $$QT_ARCH $$QT_VERSION)
                            }
                            

                            This is displayed in the Compile Output window:

                            Project MESSAGE: 64-bit x86_64 6.9.0
                            

                            [3] I tried creating a new Kit and adding a 32-bit compiler. Qt flat out rejected it.

                            [4] What does the "λ" lambda mean in your example?
                            When you say "the console where you build your Qt", do you mean the Terminal window in Qt Creator?
                            When I do that, I get:

                            >where cl
                            INFO: Could not find files for the given pattern(s).
                            

                            I'm using Windows.

                            Christian EhrlicherC Offline
                            Christian EhrlicherC Offline
                            Christian Ehrlicher
                            Lifetime Qt Champion
                            wrote last edited by
                            #19

                            @Sprezzatura said in fatal error C1060: compiler is out of heap space (again):

                            where cl
                            INFO: Could not find files for the given pattern(s).

                            Again: execute this on the command line where you also compiled your Qt. Execatly where you did 'cl -nologo'
                            You are using a 32bit compiler which creates 64 bit executables. Or you have very low ram on your system which I doubt.

                            Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
                            Visit the Qt Academy at https://academy.qt.io/catalog

                            SprezzaturaS 2 Replies Last reply
                            0
                            • hskoglundH Offline
                              hskoglundH Offline
                              hskoglund
                              wrote last edited by
                              #20

                              In my VS2002 installation there are 4 different cl.exe versions:
                              c:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.43.34808\bin\Hostx86\x86\cl.exe
                              c:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.43.34808\bin\Hostx86\x64\cl.exe
                              c:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.43.34808\bin\Hostx64\x86\cl.exe
                              c:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.43.34808\bin\Hostx64\x64\cl.exe

                              Two of them (the ..\Hostx86\x64\cl.exe and the ..\Hostx64\x64\cl.exe will show the same output:
                              "Microsoft (R) C/C++ Optimizing Compiler Version 19.43.34810 for x64" and both will compile and build 64 bit ..exe files for Qt6.

                              So you have a 50% chance of running the correct compiler, i.e. the cl.exe in the subdirectory ..\Hostx64\x64

                              1 Reply Last reply
                              2
                              • Christian EhrlicherC Christian Ehrlicher

                                @Sprezzatura said in fatal error C1060: compiler is out of heap space (again):

                                where cl
                                INFO: Could not find files for the given pattern(s).

                                Again: execute this on the command line where you also compiled your Qt. Execatly where you did 'cl -nologo'
                                You are using a 32bit compiler which creates 64 bit executables. Or you have very low ram on your system which I doubt.

                                SprezzaturaS Offline
                                SprezzaturaS Offline
                                Sprezzatura
                                wrote last edited by
                                #21

                                @Christian-Ehrlicher I'm not launching this from the command line. I'm using Qt Creator, which automatically creates a stream of commands, including launching cl.exe, followed by a ton of parameters.
                                The output appears in the "Compile Output" window of the Qt Creator IDE.

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                                • Christian EhrlicherC Christian Ehrlicher

                                  @Sprezzatura said in fatal error C1060: compiler is out of heap space (again):

                                  where cl
                                  INFO: Could not find files for the given pattern(s).

                                  Again: execute this on the command line where you also compiled your Qt. Execatly where you did 'cl -nologo'
                                  You are using a 32bit compiler which creates 64 bit executables. Or you have very low ram on your system which I doubt.

                                  SprezzaturaS Offline
                                  SprezzaturaS Offline
                                  Sprezzatura
                                  wrote last edited by
                                  #22

                                  @Christian-Ehrlicher

                                  Good news! It's working!

                                  The solution was to upgrade from VS 2022 ver. 17.13, to ver. 17.14.
                                  I tried getting VS to update itself, but it locked up and wiped itself. I had to download and re-install VS 17.14.

                                  Here's the kicker: I got the suggestion from OpenAI/ChatGPT!

                                  I'm an AI skeptic, but I have to give credit where it's due.

                                  Also, ChatGPT suggested "-bigobj", but that didn't make a difference.

                                  A sincere thanks to Christian and hskoglund from a 77-year old, half-blind hack :o)

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                                  • SprezzaturaS Sprezzatura has marked this topic as solved
                                  • S Offline
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                                    SimonSchroeder
                                    wrote last edited by
                                    #23

                                    Just as an aside (since I'm a little late to the party): You should turn on C++17 in the .pro file with the line

                                    CONFIG += c++17
                                    
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                                    • S SimonSchroeder

                                      Just as an aside (since I'm a little late to the party): You should turn on C++17 in the .pro file with the line

                                      CONFIG += c++17
                                      
                                      SprezzaturaS Offline
                                      SprezzaturaS Offline
                                      Sprezzatura
                                      wrote last edited by Sprezzatura
                                      #24

                                      @SimonSchroeder I do have that included:

                                      versionAtLeast(QT_VERSION, 6.0.0) {
                                      	CONFIG += c++17	# Fails with Qt 5.13 
                                      	QMAKE_CFLAGS += -std:c++17                 # required for Qt 6
                                      }
                                      
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