Hello, I am getting an error and I couldn't find the solution please help

[Sözde.11]

Can't find a source file at Can't find a source file at "C:\Users\B\335NAL\335\Atollic\TrueSTUDIO\STM32_workspace_9.3\deneme3\src\main.c" 

Locate the file or edit the source lookup path to include its location.

The error I got in the compilation process is written above, the card I used is STM32F429I-DİSCOVERY development board.

[Sözde.11]

[Pavel A.]

Your username contains weird characters after B and L:

Move the project to a path that contains only ascii characters and no spaces.

-- pa