Add exercise error type

types/Dojo/DojoStatusCode.ts

@@ -21,6 +21,7 @@ enum DojoStatusCode {
     TAG_WITH_ACTIVE_LINK_DELETION       = 11102,
     TAG_PROPOSAL_ANSWER_NOT_PENDING     = 11103,
     ASSIGNMENT_CREATION_SONAR_ERROR     = 208,
+    EXERCISE_CREATION_SONAR_ERROR       = 305
 }