This project contains links to one or more data sources

Occasional Visitor

Every time I open this project I get this message. have tried everything google suggested, but it isn't a common issue with project, but it is on excel. Additionally, the project is about twice the size of my other projects. It isnt connected to any other projects nor are there any external successors. Thanks in advance.

6 Replies


Apparently at some point you or someone else created imbedded links to the Project file. It could have been a hyperlink, the file was part of a master/subproject structure, a resource pool/sharer structure, or had cross-project links to another file, or perhaps had an imbedded image. Lots of possibilities.


Also, the fact that your file is also much larger than your other similar files indicates there may be corruption. I suggest you try each of the methods in the following Wiki article. 


I have experienced the same issue when opening MS project files (.mpp) that were last saved in 2014, that have no links.  I rarely use any links and experienced this with many different files over several years.   One of the files I deleted all tasks, saved and when I re-opend it, I got the same message.  I'm wondering if it is something within MS Project.  


Any thoughts?


I never experienced that issue and I've been using Project for over 20 years, many versions. Did you look at the Wiki article I suggested?


For reference, what version of Project are you using?



I reviewed the article, but the only step I did was to immediately save the file after opening. I have a lot of formatting, so I'm reluctant to lose that. I opened several files over the past 10 years and the earliest that produced the message was in 2014. Files from 2011 did not show the message. All of my files are fairly small (300 tasks or less) and I'm the only one editing them, so I know which ones have a link. This seems to have just started for me. I have links from WORD "to" MS Project that has been working fine, but now when I open the WORD document, MS Project also opens with that popup and both are files held until I respond to the popup. This is happening with too many files to be a file issue.

I'm using Online Desktop Client MSO Version 2111 Build 16.0.14701.20206 64 bit (Click-to-Run) which was installed from O365.

As an FYI, I tried method 2 and I no longer have the popup about the link(s).   I lost quite all the formatting as was mentioned and I had some graphical representations of some numbered fields that I had to redo.  All in all, it didn't take too long.  So, the file for this project seems to be working.   Thanks for the push to try one of the methods.



You're welcome and thanks for the feedback. If I answered your question please consider marking my response as the answer.