Error   1   Error 3002: Problem in mapping fragments starting at line 1106:Potential runtime violation of table Trn_BenchProficiency's keys (Trn_BenchProficiency.BenchNumber): Columns (Trn_BenchProficiency.BenchNumber) are mapped to EntitySet Trn_BenchProficiency's properties (Trn_BenchProficiency.BenchNumber) on the conceptual side but they do not form the EntitySet's key properties (Trn_BenchProficiency.AssessedDate, Trn_BenchProficiency.BenchNumber, Trn_BenchProficiency.Proficiency, Trn_BenchProficiency.SkillAllignmentID, Trn_BenchProficiency.SkillID).