I am upgrade AX2012 R2 to CU7 and see this massage has occured when after do Compile Application for a while (please see the below picture)
What should i do?
First We need to know what error log information shown to you..
You have to update the SqlDictionary table.
For some reason, in SQLDictionary table you have two records with different fieldID for the same field.
So, from AOT\System Documentation\Tables open the SqlDictionary table.
Filter by TabID field equal to 4895 and SqlName equal to "DefaultDimension"
Delete the record and synchronize again the table.