Clang Code Model plugin crashes

Hi,

since i updated Qt to 5.9.3 and QT Creator 4.5 i cannot use the Clang Code Model plugin. When i use it, the creator does Show everything as an error.

There is also an error: "

Clang Code Model: Error: The clangbackend process has finished unexpectedly and was restarted."

After that everything is marked with an error.

The Program Builds and runs, but everything is marked in the Editor.