Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

Learn from the best! Meet the four finalists headed to the FINALS of the Power BI Dataviz World Championships! Register now

Reply
Anonymous
Not applicable

error message: UNABLE TO CONNECT

I keep getting the following error message when trying to connect to ANY data source - even sources that I had already successfully connected to in the past:

 

 PBI null error.jpg

Any idea how to fix this?

Thanks!

1 ACCEPTED SOLUTION
Anonymous
Not applicable

I completely uninstalled and reinstalled the program, and that finally did the trick.  Thank you.

View solution in original post

5 REPLIES 5
v-huizhn-msft
Microsoft Employee
Microsoft Employee

Hi @Anonymous,

Please click options->Options and Settings->Options, clear cache as follows.

1.PNG

For another, please clear all data source permissions, please see the screenshot below.

2.PNG

Then try to connect data source to check if there is any issue.

Best Regards,
Angelia

Anonymous
Not applicable

Thank you for the response.  I tried that, but it did not work.  I'm going to uninstall and reinstall to see if that helps.

Hi @Anonymous,

Have you resolved your issue? If you have, welcome to share your solution or mark the right reply as answer. More people will benefit from here.

Best Regards,
Angelia

Anonymous
Not applicable

I completely uninstalled and reinstalled the program, and that finally did the trick.  Thank you.

Hi @sstasche,

Congrtulations, please mark your reply as answer, so more people will benefit from here.

Best Regards,
Angelia

Helpful resources

Announcements
Join our Fabric User Panel

Join our Fabric User Panel

Share feedback directly with Fabric product managers, participate in targeted research studies and influence the Fabric roadmap.

February Power BI Update Carousel

Power BI Monthly Update - February 2026

Check out the February 2026 Power BI update to learn about new features.

FabCon Atlanta 2026 carousel

FabCon Atlanta 2026

Join us at FabCon Atlanta, March 16-20, for the ultimate Fabric, Power BI, AI and SQL community-led event. Save $200 with code FABCOMM.