I am working on an old project modification on codesys v2.3. I tried to open the .pro file and found m message box quoting "Could not open project/library(no valid project/library files)" Please help me eoth a solution of this problem as i was able to open the backup earlier. I am attaching a screen shot for reference.
In rare case at least parts of the project could be recovered...send a bug report to the CODESYS Store - my question including the project
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