This project cannot be opened in read-write mode because a previous checkin for this project is not complete.
Error: this project cannot be opened in read-write mode because a previous checkin for this project is not complete.
Here is the solution:
4. Delete the all folders in it.
Here is the solution:
- Close Microsoft Project 2013 if it is open
 - Press windows key + R.
 - In the Run dialog, enter the following command:
 
4. Delete the all folders in it.
Comments
worked with me too