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

Join us at FabCon Atlanta from March 16 - 20, 2026, for the ultimate Fabric, Power BI, AI and SQL community-led event. Save $200 with code FABCOMM. Register now.

Reply
PNS
Regular Visitor

Mashup Container Error connecting to SQL server

When trying to connect to SQL server from Power BI Desktop getting a popup error photo attached for refrence.

 

Tried clearing the cache and editing the credentials. Also tried clearing the background data. 

 

And using the Latest version of Power BI as well.  Can some one help with this please?7f2c944d-b6b3-4685-baad-19265bc1b512.jpg

 

 

 

1 ACCEPTED SOLUTION

Thank you so much,, This problem has been solved. I changed to run the power BI as an administrator and it worked.

View solution in original post

4 REPLIES 4
Anonymous
Not applicable

Hi @PNS ,

Based on the testing, when trying to connect to SQL server from Power BI Desktop, no errors are reported and get the data normally. Have you ever successfully gotten data from SQL Server before?

vjiewumsft_0-1740553895396.png

vjiewumsft_1-1740553905727.png

vjiewumsft_2-1740553912628.png

You can view the following links to learn more information.

Solved: Microsoft Mashup Evaluation Container is killing m... - Microsoft Fabric Community

Solved: Cannot connect to the mashup data source. error in... - Microsoft Fabric Community

Tutorial: Connect to on-premises data in SQL Server - Power BI | Microsoft Learn

 

Best Regards,

Wisdom Wu

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

Thank you so much,, This problem has been solved. I changed to run the power BI as an administrator and it worked.

freginier
Super User
Super User

Hey there!

 

Sometimes Power BI's internal dependencies (like the Mashup Engine) get corrupted. Uninstall Power BI Desktop completely and reinstall the latest version. 

 

Also, Power BI may not have the correct authentication to access the SQL Server. Try using different authentication modes:
- Windows Authentication (if the SQL Server is on the same domain).
- SQL Server Authentication (enter the username & password).

 

Hope this helps!

😁😁

Tried to Re-install but still the same error.

 

Helpful resources

Announcements
FabCon Global Hackathon Carousel

FabCon Global Hackathon

Join the Fabric FabCon Global Hackathon—running virtually through Nov 3. Open to all skill levels. $10,000 in prizes!

October Power BI Update Carousel

Power BI Monthly Update - October 2025

Check out the October 2025 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.