Qt git problem, QObject: no such file or directory

[Krzysztow]

Hi all,

I have a strange problem on my computer. I am using qt 4.7) on linux and windows. I wrote some project, that works fine in Linux and commited it on a remote server. Then I switched to Windows and dowloaded the repository. All owrks fine (compilation and execution), unless I change anything in any file. I mean, when I change (add remove some space, character, comment) a file, and try to compile for the second time, I get the error:
"error: QObject: No such file or directory "
In git (tortoise) I have a settings so that appropariate new lines are taken for each OS.

Does anzone of Zou had similar issues, or someone has idea ho to fix it. I need it reallz badlz. It could be due ot encoding, however ccreator has possibilitz to choose bestween text+encoding stzle, however after plazing aroung , I managed to get nothing.

Will appreciate anz help,
Kryzsytof Wielgo

Thank Zou for anz help,
all the best,

[Krzysztow]

When everything is fine (no changes have been done), I get g++ with following parameters

mingw32-make[1]: Entering directory `C:/repo/SomeClass'
C:/Qt/2010.02.1/mingw/bin/mingw32-make -f Makefile.Release
mingw32-make[2]: Entering directory `C:/repo/SomeClass'
c:\Qt\2010.02.1\qt\bin\uic.exe someclass.ui -o ui_someclass.h
g++ -c -O2 -frtti -fexceptions -mthreads -Wall -DUNICODE -DQT_LARGEFILE_SUPPORT -DUTILS_LIBRARY -DQT_DLL -DQT_NO_DEBUG -DQT_TESTLIB_LIB -DQT_XML_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -DQT_THREAD_SUPPORT -I"c:\Qt\2010.02.1\qt\include\QtCore" -I"c:\Qt\2010.02.1\qt\include\QtNetwork" -I"c:\Qt\2010.02.1\qt\include\QtGui" -I"c:\Qt\2010.02.1\qt\include\QtXml" -I"c:\Qt\2010.02.1\qt\include\QtTest" -I"c:\Qt\2010.02.1\qt\include" -I"c:\Qt\2010.02.1\qt\include\ActiveQt" -I"release" -I"." -I"c:\Qt\2010.02.1\qt\mkspecs\win32-g++" -o release\someclass.o someclass.cpp

mingw32-make[1]: Entering directory `C:/repo/SomeClass'
C:/Qt/2010.02.1/mingw/bin/mingw32-make -f Makefile.Release
mingw32-make[2]: Entering directory `C:/repo/SomeClass'
c:\Qt\2010.02.1\qt\bin\uic.exe someclass.ui -o ui_someclass.h
g++ -c -O2 -frtti -fexceptions -mthreads -Wall -DUNICODE -DQT_LARGEFILE_SUPPORT -DUTILS_LIBRARY -DQT_DLL -DQT_NO_DEBUG -DQT_TESTLIB_LIB -DQT_XML_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -DQT_THREAD_SUPPORT -I"c:\Qt\2010.02.1\qt\include\QtCore" -I"c:\Qt\2010.02.1\qt\include\QtNetwork" -I"c:\Qt\2010.02.1\qt\include\QtGui" -I"c:\Qt\2010.02.1\qt\include\QtXml" -I"c:\Qt\2010.02.1\qt\include\QtTest" -I"c:\Qt\2010.02.1\qt\include" -I"c:\Qt\2010.02.1\qt\include\ActiveQt" -I"release" -I"." -I"c:\Qt\2010.02.1\qt\mkspecs\win32-g++" -o release\someclass.o someclass.cpp

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In case there has been a change, I get:

mingw32-make[1]: Entering directory `C:/repo/SomeClass'
C:/Qt/2010.02.1/mingw/bin/mingw32-make -f Makefile.Release
mingw32-make[2]: Entering directory `C:/repo/Project'
g++ -O2 -frtti -fexceptions -mthreads -Wall -DUNICODE -DQT_LARGEFILE_SUPPORT -DGROUPADDRESSMODEL_LIBRARY -DQT_DLL -DQT_NO_DEBUG -DQT_TESTLIB_LIB -DQT_XML_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -DQT_THREAD_SUPPORT someclass.cpp -o SomeClass

mingw32-make[1]: Entering directory `C:/repo/SomeClass'
C:/Qt/2010.02.1/mingw/bin/mingw32-make -f Makefile.Release
mingw32-make[2]: Entering directory `C:/repo/Project'
g++ -O2 -frtti -fexceptions -mthreads -Wall -DUNICODE -DQT_LARGEFILE_SUPPORT -DGROUPADDRESSMODEL_LIBRARY -DQT_DLL -DQT_NO_DEBUG -DQT_TESTLIB_LIB -DQT_XML_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -DQT_THREAD_SUPPORT someclass.cpp -o SomeClass

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So there is no include path specified for g++ arguments, although in Makefile.Release it is. There is include path, as well as some ui forms parameters for ui.exe program.

Anyone knows why compiler omits these information, please?

Thank You.

[Krzysztow]

I think I got the solution and it was elswhere. The problem is to include some *.h files (e.g. file.h) we use #include <File>, where file File has #include "<path>/file.h" directive. On Unix this is not an issue, however on windows it is when the file File has the same name as on of the classes being compiled. It gets an error, as stated before when someone changes a file having File class. Then, when I do anything to File file (insert/remove) new line, compilation goes well.

But this is cumbersome, I would have to insert nl everytime changes to File class are done. So the easiest way is to change #include <File> into #include <MyFile> and a file accordingly.

Hopefully this helps some time, someone. I really ate my teeth on it and badaly needed a help.

Regards,
Krzysztof Wielgo.