← All Power BI refresh errors
Data / model
Processing error: Type Mismatch
Error code: type-mismatch
Power BI dataset refresh error — what it means and how to fix it.
What this means
An M-script data-type mismatch during processing (often a stale Power BI Desktop version).
How to fix it
- Fix the M type conversion that is mismatched.
- Update Power BI Desktop and republish.
- Retest the refresh.
Related data / model errors
Catch this automatically
RefreshRadar monitors every Power BI dataset refresh and alerts you the moment one fails — with the likely cause and the fix — so you never hear about a broken refresh from your stakeholders first.
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