When working in the Power Query Editor in Power BI or Excel, especially when you’re editing M code, you may run into the following error: Expression.Error: A cyclic reference was encountered during ...

To fix power bi expression.errors Check the Power Query Syntax, Uninstall ODBC Connector and Power Bi Client, Check for Unallowed Characters etc.

Remember that I said that a Power Query query is itself a single M expression? The way Power Query implements multiple steps in each query is using a let expression, which is a single M expression ...

Hello, Whenever I try to add a database field to a table (even an empty one) in PowerBI it gives me this message: OLE DB or ODBC error: [Expression.Error] We couldn't fold the expression to the data ...