RE: Error in Import Custom Solution after update Dynamics 365 to Version 9.1.0.29 - Managed Property Name: canmodifymobileclientreadonly
Hi,
Does your Solution also contains Team entity. If so, you might want to edit the team entity definition in the solution customization.xml file.
1. Unzip the solution file.
2. Open the customizations.xml file in a text editor
3. Search for the LogicalCollectionName (example: teams)
<EntitySetName>teams</EntitySetName>
4. Scroll down and find the attribute name that is different (example: IsReadOnlyInMobileClient)
<IsReadOnlyInMobileClient>1</IsReadOnlyInMobileClient>
5. Change the value to the opposite of the current setting (example: 1 to 0)
<IsReadOnlyInMobileClient>0</IsReadOnlyInMobileClient>
6. Zip all the files together into a new edited solution and use this solution for the import.
Please let us know if this helps resolve the problem you are facing.