Debug Assertion Failed - Qt 5 RC1 - extraTryFontsForFamily



  • Hi
    Having a serious issue with qt 5 RC1. When my application starts up, I receive the following:
    Debug Assertion Failed!

    Program: C:\Development\Qt\qtbase\plugins\platforms\windowsd.dll
    File: f:\dd\vctools\crt_bld\self_x86\crt\src\dbgheap.c
    Line: 1424

    Expression: _pFirstBlock == pHead

    After executing the line:
    if (!db.writingSystems(family).contains(QFontDatabase::Symbol)) {
    in the extraTryFontsForFamily call in qwindowsfontdatabase.cpp.

    Not sure as to why this is happening - seems to be having an issue cleaning up the heap. Anyone care to shed some light?
    Qt 5 RC1 compiled with the following flags:
    C:\Development\Qt>configure -platform win32-icc -developer-build -opensource -nomake tests -nomake examples -debug-and-release -no-c++11 -confirm-license -opengl desktop -no-sse2 -plugin-sql-mysql -I C:\MySQL\include -L C:\MySql\lib -plugin-sql-odbc

    Using Visual Studio 2012 with the latest Windows 8 Kit/latest intel compiler (2013).



  • Just realised I should have posted this in a more relative forum. Whoops.


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