MPLAB® X IDE - Failure To Load Project
Why do I not see my project files and why do I get a 'Failed to load project' message on MPLAB® X IDE?
This can happen when the project files (such as file private.xml) have been corrupted or have been replaced with incorrect versions (e.g., copied from somewhere else). Verify the original project (from where the project was copied) and be sure to copy all the files or re-create the project as a new MPLAB X IDE project.