bug,没写目录

app/service/relation/relationStudentCoach.js

@@ -8,7 +8,7 @@ const assert = require('assert');
 class RelationStudentCoachService extends CrudService {
   constructor(ctx) {
     super(ctx, 'relationstudentcoach');
-    this.model = this.ctx.model.RelationStudentCoach;
+    this.model = this.ctx.model.Relation.RelationStudentCoach;
   }
 }