I am getting an error "Aspect 'History Source' reported aspect hook error (PrepareCommit): " while importing structural backups with or without dependencies and the import fails. While taking structural backups, there are no errors. The source and target systems have same version of 800xA system. 800xA 5.1RevC FP4
The issue is now resolved. The aspect "History source" was added in all the Conducting equipments and also at the Control network. After History source from the Conducting equipments, the structural backup could be imported without any errors.