Debugging with vague error messages

Hi Anonymous ,

Regarding the error message you mentioned, “OLE DB or ODBC error: [Expression.Error] The parameter is expected to be of type Text.Type or Binary.Type,” it indicates that a parameter in your Power Query is expected to be either of type Text.Type or Binary.Type.

To troubleshoot this error and similar ones, here are some general steps you can take:

Review the Query Steps: Carefully examine each step in your Power Query to identify any potential issues. Pay attention to transformations, data types, and any applied functions that might be causing conflicts.

Check Data Types: Ensure that the data types of your columns match the expected types in subsequent steps. Mismatched data types can lead to errors.

Inspect Source Data: Verify the data in your PostgreSQL table and check for any anomalies or unexpected values that might be causing conflicts during import.

Similar posts for reference:

Re: The parameter is expected to be of type Text.T... - Microsoft Fabric Community

Expression.Error: The parameter is expected to be ... - Microsoft Fabric Community

Best Regards,

Stephen Tao

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