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jzkirtley's avatar
jzkirtley
New Member
2 months ago
Solved

Non-null assertion failure: "Value cannot be null"

I'm running into this consistent issue. I save a .pbip file against a custom connector with a very basic query. If I then close PowerBI and reopen it, the first time I attempt to open the file I get ...
Need Help
  • trivedisunita's avatar
    trivedisunita
    2 months ago

    Hi jzkirtley 

    This is a Power BI Desktop June 2026 bug with .pbip files and custom connectors.

    You can do some workarounds-

    1.Keep Power BI Desktop open: Once you’ve opened the file successfully in a session, avoid closing/reopening until you’re done.

     

    2. Rollback to May 2026 build: If you need stability, install the May build (2.154.x) — this issue doesn’t occur there.

    3. Use PBIX instead of PBIP: If you don’t need Git integration, saving as .pbix avoids the folded artifacts path entirely.

    4. Disable preview features: Some users reported fewer crashes after disabling PBI_gitIntegration and PBI_tmdlInDataset in Options → Preview Features.

    Log a bug: Use Help → Send Feedback →so the Power BI team can track it. Include your connector details and the repro steps you shared.

     

    If this reply helped, please mark it as a solution .a kudos would mean a lot! It encourages contributors and keeps the community strong.

     

    Thank You

    Sunita

     

     

     

trivedisunita's avatar
trivedisunita
Continued Contributor
2 months ago

Hi jzkirtley 

This is a Power BI Desktop June 2026 bug with .pbip files and custom connectors.

You can do some workarounds-

1.Keep Power BI Desktop open: Once you’ve opened the file successfully in a session, avoid closing/reopening until you’re done.

 

2. Rollback to May 2026 build: If you need stability, install the May build (2.154.x) — this issue doesn’t occur there.

3. Use PBIX instead of PBIP: If you don’t need Git integration, saving as .pbix avoids the folded artifacts path entirely.

4. Disable preview features: Some users reported fewer crashes after disabling PBI_gitIntegration and PBI_tmdlInDataset in Options → Preview Features.

Log a bug: Use Help → Send Feedback →so the Power BI team can track it. Include your connector details and the repro steps you shared.

 

If this reply helped, please mark it as a solution .a kudos would mean a lot! It encourages contributors and keeps the community strong.

 

Thank You

Sunita