fatal error C1060: compiler is out of heap space (again)
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@IgKh said in fatal error C1060: compiler is out of heap space (again):
During the compilation of which file does the error happen?
Strangely, the error messages all point to Qt header files, which or course I have not altered or modified in any way:
C:\Qt\6.9.0\msvc2022_64\include\QtCore/qabstracteventdispatcher.h(18): fatal error C1060: compiler is out of heap space C:\Qt\6.9.0\msvc2022_64\include\QtGui/qbrush.h(116): fatal error C1060: compiler is out of heap space C:\Qt\6.9.0\msvc2022_64\include\QtCore/qabstracteventdispatcher.h(18): fatal error C1060: compiler is out of heap space C:\Qt\6.9.0\msvc2022_64\include\QtWidgets/qwidget.h(717): fatal error C1060: compiler is out of heap space C:\Qt\6.9.0\msvc2022_64\include\QtCore/qhash.h(2699): fatal error C1060: compiler is out of heap space C:\Qt\6.9.0\msvc2022_64\include\QtCore/qvariant.h(333): fatal error C1060: compiler is out of heap space C:\Qt\6.9.0\msvc2022_64\include\QtWidgets/qabstractbutton.h(24): fatal error C1060: compiler is out of heap space C:\Qt\6.9.0\msvc2022_64\include\QtCore/qabstracteventdispatcher.h(18): fatal error C1060: compiler is out of heap space C:\Qt\6.9.0\msvc2022_64\include\QtCore/qdebug.h(703): fatal error C1060: compiler is out of heap space C:\Qt\6.9.0\msvc2022_64\include\QtCore/qdebug.h(507): fatal error C1060: compiler is out of heap space C:\Qt\6.9.0\msvc2022_64\include\QtCore/qttypetraits.h(29): fatal error C1060: compiler is out of heap space C:\Qt\6.9.0\msvc2022_64\include\QtCore/qdebug.h(320): fatal error C1060: compiler is out of heap space C:\Qt\6.9.0\msvc2022_64\include\QtCore/qdebug.h(602): fatal error C1060: compiler is out of heap space C:\Qt\6.9.0\msvc2022_64\include\QtCore/qdebug.h(320): fatal error C1060: compiler is out of heap space C:\Qt\6.9.0\msvc2022_64\include\QtCore/qbytearrayview.h(41): fatal error C1060: compiler is out of heap space C:\Qt\6.9.0\msvc2022_64\include\QtWidgets/qwidget.h(787): fatal error C1060: compiler is out of heap space C:\Qt\6.9.0\msvc2022_64\include\QtCore/qsharedpointer_impl.h(1060): fatal error C1060: compiler is out of heap space C:\Qt\6.9.0\msvc2022_64\include\QtCore/qhash.h(863): fatal error C1060: compiler is out of heap space C:\Qt\6.9.0\msvc2022_64\include\QtCore/qabstracteventdispatcher.h(18): fatal error C1060: compiler is out of heap space C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.43.34808\include\optional(94): fatal error C1060: compiler is out of heap space@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.
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@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.
@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 2Here'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 -
@Christian-Ehrlicher I am using a 64-bit compiler. Compiling for 64-bit executable.
@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 -
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.)@hskoglund I get the same errors in Release mode.
The "/FS" is generated by Qt, not sure how to suppress it.
"/FS-"? -
@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?@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)
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@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?@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 catalog_productDisplayVersion: 15.9.78 catalog_productLine: Dev15 catalog_productLineVersion: 2017 catalog_productMilestone: RTW catalog_productMilestoneIsPreRelease: False 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 properties_campaignId: properties_channelManifestId: VisualStudio.15.Release/15.9.78+36631.12 properties_includeRecommended: 0 properties_nickname: properties_setupEngineFilePath: C:\Program Files (x86)\Microsoft Visual Studio\Installer\setup.exe 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 catalog_buildVersion: 17.13.35931.197 catalog_id: VisualStudio/17.13.6+35931.197 catalog_localBuild: build-lab catalog_manifestName: VisualStudio catalog_manifestType: installer catalog_productDisplayVersion: 17.13.6 catalog_productLine: Dev17 catalog_productLineVersion: 2022 catalog_productMilestone: RTW catalog_productMilestoneIsPreRelease: False catalog_productName: Visual Studio catalog_productPatchVersion: 6 catalog_productPreReleaseMilestoneSuffix: 1.0 catalog_productSemanticVersion: 17.13.6+35931.197 catalog_requiredEngineVersion: 3.13.2069.59209 properties_campaignId: 3650:2f3f9e4bc13b4b84bacc669e2109a308 properties_channelManifestId: VisualStudio.17.Release/17.13.6+35931.197 properties_includeRecommended: 1 properties_nickname: 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 catalog_buildVersion: 15.9.36631.12 catalog_id: VisualStudio/15.9.78+36631.12 catalog_localBuild: build-lab catalog_manifestName: VisualStudio catalog_manifestType: installer catalog_productDisplayVersion: 15.9.78 catalog_productLine: Dev15 catalog_productLineVersion: 2017 catalog_productMilestone: RTW catalog_productMilestoneIsPreRelease: False 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 properties_campaignId: 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 -
@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?This post is deleted! -
Sorry I meant
where cl.exeQt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
Visit the Qt Academy at https://academy.qt.io/catalog -
Sorry I meant
where cl.exewhere cl.exe INFO: Could not find files for the given pattern(s). -
Sorry I meant
where cl.exe@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?
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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.exeQt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
Visit the Qt Academy at https://academy.qt.io/catalog -
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@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.
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@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.
@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 -
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.exeTwo 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
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@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.@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. -
@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.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)
Update 17 Mar 2026: The problem reoccurs every few days. Solution is to kill memory hogs until it works: Firefox, Chrome, Thunderbird, Teams, Adobe, whatever.
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S Sprezzatura has marked this topic as solved on
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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 -
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@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 } -
Interesting update: I got the error again, appearing at random after days of successful compilation.
I terminated Firefox, the problem went away!
