Every time I open MCUEpresso v10.3.1 I get the message:
The source file 'xxx\board\peripherals.c' contains different setup that the Config Tools configuration file 'xxx.mex'. Configuration file will be loaded.
To use configuration from source file, select File > Import Source from the Main Menu.
No matter if I do as it suggests or just ignore it, it always comes up.
I tried to create a brand new project with just the auto-generated code. The first time is works fine. Then I add or change one pin or peripheral and hit 'Project Update' I then get this message on the new project. I did not have this problem with v10.2.1.