Solved
stm32cubeide 1.5.0 and in App updated 1.5.1. creates no projects with cubeMX. Pure c/c++ projects will create. I tryed much, nothing worked, also not a new work directory.
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My friend tould me that eclipse in some cases need to be reinstalled.
So I will reinstall stm32cubeide 1.5.0. and start the in App update with help->update
to v1.5.1.
Afterwards I install the h7, f7, f4 and f3 packages from local .zip files.
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