hello dănuț,
very thanks for your efforts to help me. finaly i solved the problem.
i included "qputenv("QML_IMPORT_TRACE", "1");" to see which paths are included. then i saw that there are only 3 paths are included regardless of which paths i try to include with addImportPath or QML_IMPORT_PATH.
QQmlImportDatabase::addImportPath: "C:\Qt\Qt5.0.0\5.0.0\msvc2010\qml"
QQmlImportDatabase::addImportPath: "../test1-build-Desktop_Qt_5_0_0_MSVC2010_32bit_SDK-Debug/release"
QQmlImportDatabase::addImportPath: "../test1-build-Desktop_Qt_5_0_0_MSVC2010_32bit_SDK-Release/debug"
"C:\Qt\Qt5.0.0\5.0.0\msvc2010\imports" is not included and the paths #2 and #3 are emty. if i build a release version the path to the application is ... 32bit_SDK-Release/relase and not 32bit_SDK-Release/debug. this paths is created indeed but emty and if i build the debug version it is similar. so the linker can never find the module under ../imports/com/mycompany/qmlcomponents or ...Debug/debug/com/mycompany/qmlcomponents.
Now i created the tree com/mycompany/qmlcomponents at this "wrong" path and everything works just right.
I dont know why i cant add a import path maybe i is an issue of the creator or i dont have the rights to change some files in the qt environment (but i started the creator as admin). i hope it works with the next version of the creator.
thank you very much,
andré