The update of SW6 and CubeMX brought me a lot of trouble.The generated project from CubeMX will not compile, make error 258.
To solve this goto Setting and place quotes like this: “weak=attributeweak” and “packed=attributepacked”
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Also old projects will not compile anymore. Lost of files are missing that are there. Copy the project by the only copy method i know, start your project.ioc file to open CubeMX and save as a new project. Generate and import the project. Copy the Src and Inc from the old project and place the quotes as described above. Now you have to do this for all your projects!