The location of your source files has changed, and now you need to update your Power BI report to use the new location. To update the directory or location of your source file, in Power BI Desktop, click Transform Data -> Data Source Settings 

Then click on the entry that corresponds to the path you need to update.

Update or entirely change the path and click ok. Apply your changes.

It becomes a little more complicated when you are changing a local folder to a SharePoint location, which we will cover in another post, but for changing location of single files, it’s that simple. 

Thanks for reading!