I am trying to open the MS Project file saved in .MPP format, using MS Project 2013, when ever i try to open the file, it asks me to login and throws the below error.

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I have gone through the below link and strange none for the solution for this. MS Project file error

1 Answer 1


Check if the path of the file is too long.

Besides, try opening the same file from the SharePoint Online in other client machines to see if it happens.

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