pbiplintRules / Error Prevention
Expression-reliant objects must have an expression
What it checks
Measures, calculated columns, and calculation items whose expression is empty.
Why it matters
Without an expression the object cannot be evaluated: a measure returns nothing, a calculated column is empty, and a calculation item does nothing. Depending on the engine version the deployment fails outright, and the error points at the object without saying why.
How to fix it
Add the DAX, or delete the object.
Quirks
- Cannot fire on a TMDL file: the TMDL reader takes the next indented line as the expression, so an empty expression never survives loading.