[Development] Error while compiling WebKit QT 5.0.1

[Carlo A. Scarpato]

Hi all,
i have this error while Compiling qtwebkit (QT 5.0.1) with mingw64_x64:

(set "PATH=C:\Development\qt-everywhere-opensource-src-5.0.1_mingw64
qtbase\..\gnuwin32\bin;%PATH%") && python
C:/Development/qt-everywhere-opensource-src-5.0.1_mingw64/qtwebkit/Source/WebCore/inspector/generate-inspector-protocol-version -o generated\InspectorProtocolVersion.h inspector\Inspector.json
Self-test failedmake[2]: *** [generated/InspectorProtocolVersion.h]
Error 1
make[2]: Leaving directory  
`C:/Development/qt-everywhere-opensource-src-5.0.1_mingw64/qtwebkit/Source/WebCore'
make[1]: *** [sub-DerivedSources-pri-make_first-ordered] Error 2
make[1]: Leaving directory  
`C:/Development/qt-everywhere-opensource-src-5.0.1_mingw64/qtwebkit/Source/WebCore'
make: *** [sub-Source-WebCore-WebCore-pro-make_first-ordered] Error 2

Tested  with Windows 8 and Windows 7 @64bit