Hello guys,
the project management was damaged, i solved the problem this way :
- In the main menu, select Start-up > Service > Minimize HMI.
- Click on the Stop KRC icon in the task bar.
- Delete all the folders contained in the directory C:\KRC\USER\ProjectRoot\.
- Delete the initial project in the directory D:\InitialProject\.
- Execute the file InitialProjectSetup.exe in the directory C:\KRC\UTIL\InitialProjectSetup\.
- Execute the file StartKRC.exe in the directory C:\KRC\.
this way controller go back to the initial project (Factor settings). and error was removed.