Problem with new Visual Studio update 2017 Version 15.9.4 and Qt 5.9.3
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wrote on 20 Dec 2018, 20:18 last edited by
I have read the fix suggested in this forum titled: [https://forum.qt.io/topic/93711/problem-with-new-visual-studio-update-2017-version-15-8-0-and-qt-5-9-5](link url)
It involved using a patched version of "qalgorithms.h", however that does not work for me.
I am still getting the error:
Error (active) E2512 the argument to a feature-test macro must be a simple identifier in qcompilerdetection.hwith Qt version Qt 5.9.3 (I cannot change the QT version, I am creating a DLL plugin for an very large program from a 3rd party).
and VS Studio 15.9.4 (notice the higher version of VS2017).
BTW, the solution was created by cmake and it says the C++ compiler is:
MSVC 19.16.27025.1 -
wrote on 24 Dec 2018, 14:54 last edited by
I replace the qalgorithms.h cleaned the cmake cache, did a full rebuild. And now it is working for me also.
I am using VS2017 15.9.4 and doing a x64 build with release symbols.
The only odd thing I see, is that if there are any compile errors (other than these, then the E2512 error returns also. But that sort of behavior I see a lot with microsoft VC++ compiler, so don't sweat it.
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I have read the fix suggested in this forum titled: [https://forum.qt.io/topic/93711/problem-with-new-visual-studio-update-2017-version-15-8-0-and-qt-5-9-5](link url)
It involved using a patched version of "qalgorithms.h", however that does not work for me.
I am still getting the error:
Error (active) E2512 the argument to a feature-test macro must be a simple identifier in qcompilerdetection.hwith Qt version Qt 5.9.3 (I cannot change the QT version, I am creating a DLL plugin for an very large program from a 3rd party).
and VS Studio 15.9.4 (notice the higher version of VS2017).
BTW, the solution was created by cmake and it says the C++ compiler is:
MSVC 19.16.27025.1@Doctor-G According to https://en.wikipedia.org/wiki/Microsoft_Visual_C%2B%2B both versions you posted mean VS2017
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@Doctor-G said in Problem with new Visual Studio update 2017 Version 15.9.4 and Qt 5.9.3:
Error (active) E2512 the argument to a feature-test macro must be a simple identifier
in qcompilerdetection.hOn which line exactly?
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wrote on 23 Dec 2018, 03:40 last edited by primem0ver
I am having this same problem. For me it is occurring on lines 1349 and 1351:
#if QT_HAS_CPP_ATTRIBUTE(clang::fallthrough) //1349 # define Q_FALLTHROUGH() [[clang::fallthrough]] #elif QT_HAS_CPP_ATTRIBUTE(gnu::fallthrough) //1351 # define Q_FALLTHROUGH() [[gnu::fallthrough]] #elif QT_HAS_CPP_ATTRIBUTE(fallthrough) # define Q_FALLTHROUGH() [[fallthrough]] #endif -
wrote on 24 Dec 2018, 14:54 last edited by
I replace the qalgorithms.h cleaned the cmake cache, did a full rebuild. And now it is working for me also.
I am using VS2017 15.9.4 and doing a x64 build with release symbols.
The only odd thing I see, is that if there are any compile errors (other than these, then the E2512 error returns also. But that sort of behavior I see a lot with microsoft VC++ compiler, so don't sweat it.
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I am having this same problem. For me it is occurring on lines 1349 and 1351:
#if QT_HAS_CPP_ATTRIBUTE(clang::fallthrough) //1349 # define Q_FALLTHROUGH() [[clang::fallthrough]] #elif QT_HAS_CPP_ATTRIBUTE(gnu::fallthrough) //1351 # define Q_FALLTHROUGH() [[gnu::fallthrough]] #elif QT_HAS_CPP_ATTRIBUTE(fallthrough) # define Q_FALLTHROUGH() [[fallthrough]] #endifwrote on 24 Dec 2018, 15:22 last edited by@primem0ver I was getting the errors on these same lines.
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wrote on 7 Mar 2019, 08:43 last edited by JKSH 3 Jul 2019, 13:30
Time : 2019/3/7 16:38
vs2017 Enterprise 15.9.2
qt version ： 12.1
what's wrong with me ...........
[EDIT: Email removed --JKSH]
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wrote on 11 Apr 2019, 13:10 last edited by
I had the same problem. Touching the header-file "qcompilerdetection.h" and recompilation solved the problem for me.