When importing my unmanaged solution from one organization to the other, I get the error: 'The entity relationship role of the referencing entity is required when creating a new one-to-many entity relationship account_svsrvc_Afspraaks.'
The table svsrvc_Afspraaks is an activity table. The relationship account_svsrvc_Afspraaks is automatically created for the column 'RegardingObjectId'. I am not able to edit or remove these relationships from the solution without it causing problems when importing it again.
I checked the customizations.xml in the solution zip file and saw that compared to other relationships, there was no <EntityRelationshipRoles> section with several of these _svrvc_Afspraaks relationships.
I have tried removing the relationships from the customizations.xml and importing again but with no success. Can someone help me?