The table contains measures, but PowerPivot can't display them. This may be because there are too many measures to display, ...

The table contains measures, but PowerPivot can't display them. This may be because there are too many measures to display, or because all columns in the table are set to be hidden in both the PowerPivot window and in client tools. If all columns are being hidden in PowerPivot, you can display the measures by selecting Show Hidden.