Need help with Error.many-to-many dimension in the '' measure group requires that the granularity of the '' dimension is lower than that of the '' measure group.

Hi

I need help with the following error soon please

"Error 16 Errors in the metadata manager. The 'Dim_Item' many-to-many dimension in the 'Fact Analytics Data' measure group requires that the granularity of the 'UTC Local Time Together' dimension is lower than that of the 'Bridge Aggregate Info Analytics' measure group.  0 0 "

This is how my data source view looks  and dimension usage tab looks like.