DAXMD: Need more helpful error message if you try to put a DAX measure in the MDX script by furmangg

CREATE SESSION MEASURE 'Date'[DAX Calc] = calculate(sum('Date'[Date.Key0]));

That returns the helpful error:

DAX calculations on session and global scopes are not supported for multidimensional models. Please contact your administrator for more information.

Trying to put a measure in the MDX script doesn’t get me that helpful error message. If I add the following to the MDX script:

CREATE MEASURE 'Date'[DAX Calc] = calculate(sum('Date'[Date.Key0]));

During deployment, I get this error:

Internal error: An unexpected error occurred (file 'xlmodel.cpp', line 202, function 'XLModel::Init').