Error while building qtwebengine module from Qt 5.7.0

[horokey]

Hello everyone.
I tried to compile Qt 5.7.0 from source (link) with MSVS 2015 in both x86 and x64, but the process failed during the compilation of qtwebengine module.
Errors were the following:

[12804/12810] CXX obj\src\core\QtWebEngineCore.web_engine_settings.obj
FAILED: ninja -t msvc -e environment.x64 -- cl.exe /nologo /showIncludes /FC @obj\src\core\QtWebEngineCore.web_engine_settings.obj.rsp /c %path_to_qt%\qt-everywhere-opensource-src-5.7.0\qtwebengine\src\core\web_engine_settings.cpp /Foobj\src\core\QtWebEngineCore.web_engine_settings.obj /Fdobj\src\core\QtWebEngineCore.cc.pdb
%path_to_qt%\qt-everywhere-opensource-src-5.7.0\qtwebengine\src\core\web_engine_settings.cpp(350): fatal error C1083: Cannot open include file: 'web_engine_settings.moc': No such file or directory
[12804/12810] CXX obj\src\core\QtWebEngineCore.location_provider_qt.obj
FAILED: ninja -t msvc -e environment.x64 -- cl.exe /nologo /showIncludes /FC @obj\src\core\QtWebEngineCore.location_provider_qt.obj.rsp /c %path_to_qt%\qt-everywhere-opensource-src-5.7.0\qtwebengine\src\core\location_provider_qt.cpp /Foobj\src\core\QtWebEngineCore.location_provider_qt.obj /Fdobj\src\core\QtWebEngineCore.cc.pdb
%path_to_qt%\qt-everywhere-opensource-src-5.7.0\qtwebengine\src\core\location_provider_qt.cpp(276): fatal error C1083: Cannot open include file: 'location_provider_qt.moc': No such file or directory
[12804/12810] CXX obj\src\core\QtWebEngineCore.web_contents_adapter.obj
ninja: build stopped: subcommand failed.
NMAKE : fatal error U1077: '%path_to_qt%\qt-build\qtwebengine\src\3rdparty\ninja\ninja.exe' : return code '0x1'
Stop.

After that I tried to create web_engine_settings.moc and location_provider_qt.moc manually, and after restarting the compilation process I got another bunch of errors:

QtWebEngineCore.url_request_custom_job_delegate.obj : error LNK2001: unresolved
external symbol "public: static struct QMetaObject const QtWebEngineCore::Favico
nManager::staticMetaObject" (?staticMetaObject@FaviconManager@QtWebEngineCore@@2
UQMetaObject@@B)
QtWebEngineCore.url_request_qrc_job_qt.obj : error LNK2001: unresolved external
symbol "public: static struct QMetaObject const QtWebEngineCore::FaviconManager:
:staticMetaObject" (?staticMetaObject@FaviconManager@QtWebEngineCore@@2UQMetaObj
ect@@B)
QtWebEngineCore.user_resource_controller_host.obj : error LNK2001: unresolved ex
ternal symbol "public: static struct QMetaObject const QtWebEngineCore::FaviconM
anager::staticMetaObject" (?staticMetaObject@FaviconManager@QtWebEngineCore@@2UQ
MetaObject@@B)
QtWebEngineCore.ssl_host_state_delegate_qt.obj : error LNK2001: unresolved exter
nal symbol "public: static struct QMetaObject const QtWebEngineCore::FaviconMana
ger::staticMetaObject" (?staticMetaObject@FaviconManager@QtWebEngineCore@@2UQMet
aObject@@B)
QtWebEngineCore.surface_factory_qt.obj : error LNK2001: unresolved external symb
ol "public: static struct QMetaObject const QtWebEngineCore::FaviconManager::sta
ticMetaObject" (?staticMetaObject@FaviconManager@QtWebEngineCore@@2UQMetaObject@
@B)
QtWebEngineCore.type_conversion.obj : error LNK2001: unresolved external symbol
"public: static struct QMetaObject const QtWebEngineCore::FaviconManager::static
MetaObject" (?staticMetaObject@FaviconManager@QtWebEngineCore@@2UQMetaObject@@B)

QtWebEngineCore.url_request_context_getter_qt.obj : error LNK2001: unresolved ex
ternal symbol "public: static struct QMetaObject const QtWebEngineCore::FaviconM
anager::staticMetaObject" (?staticMetaObject@FaviconManager@QtWebEngineCore@@2UQ
MetaObject@@B)
QtWebEngineCore.permission_manager_qt.obj : error LNK2001: unresolved external s
ymbol "public: static struct QMetaObject const QtWebEngineCore::FaviconManager::
staticMetaObject" (?staticMetaObject@FaviconManager@QtWebEngineCore@@2UQMetaObje
ct@@B)
QtWebEngineCore.render_view_observer_host_qt.obj : error LNK2001: unresolved ext
ernal symbol "public: static struct QMetaObject const QtWebEngineCore::FaviconMa
nager::staticMetaObject" (?staticMetaObject@FaviconManager@QtWebEngineCore@@2UQM
etaObject@@B)
QtWebEngineCore.render_widget_host_view_qt.obj : error LNK2001: unresolved exter
nal symbol "public: static struct QMetaObject const QtWebEngineCore::FaviconMana
ger::staticMetaObject" (?staticMetaObject@FaviconManager@QtWebEngineCore@@2UQMet
aObject@@B)
QtWebEngineCore.resource_dispatcher_host_delegate_qt.obj : error LNK2001: unreso
lved external symbol "public: static struct QMetaObject const QtWebEngineCore::F
aviconManager::staticMetaObject" (?staticMetaObject@FaviconManager@QtWebEngineCo
re@@2UQMetaObject@@B)
QtWebEngineCore.javascript_dialog_controller.obj : error LNK2001: unresolved ext
ernal symbol "public: static struct QMetaObject const QtWebEngineCore::FaviconMa
nager::staticMetaObject" (?staticMetaObject@FaviconManager@QtWebEngineCore@@2UQM
etaObject@@B)
...

My configuration file is:

call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" x86
SET _ROOT=%path_to_qt%\qt-everywhere-opensource-src-5.7.0
SET PATH=C:\Perl64\bin;C:\Python\Python2711;%_ROOT%\qtbase\bin;%_ROOT%\gnuwin32\bin;%PATH%
SET QMAKESPEC=win32-msvc2015
SET _ROOT=

call ../qt-everywhere-opensource-src-5.7.0/configure -mp -ltcg -no-icu -opengl desktop -debug-and-release -force-debug-info -opensource -prefix "C:\Qt\Qt_5.7.0\MSVS_2015_x86\d-rt_d-lib" -confirm-license -nomake examples

Is there a way to solve this problem?

Thanks in advance.

[GertB]

I have the same error (also for Qt 5.6.0).
Is there a solution ?

[horokey]

No. It seems to be a bug in Qt.

[RaptrB2]

@horokey I'm having the exact same errors. Please let me know if you ever find the solution to this

[RaptrB2]

Found the problem. It looks like during the initial stage of nmake, it was spitting out some errors complaining that the command line is too long. I found this ticket and patched those 3 files into my directory and it fixed the problem: https://codereview.qt-project.org/#/c/160622/

Later down the line I experienced another compile issue (https://bugreports.qt.io/browse/QTBUG-54455) and patching this file fixed it: https://codereview.qt-project.org/#/c/163955/