Add exercise error

types/Dojo/ExerciseCheckerError.ts

@@ -6,7 +6,10 @@ enum ExerciseCheckerError {
     EXERCISE_RESULTS_FOLDER_TOO_BIG        = 204,
     EXERCISE_RESULTS_FILE_SCHEMA_NOT_VALID = 206,
     UPLOAD                                 = 207,
-    DOCKER_COMPOSE_REMOVE_DANGLING_ERROR   = 208
+    DOCKER_COMPOSE_REMOVE_DANGLING_ERROR   = 208,
+    SONAR_DOCKER_ERROR                     = 209,
+    SONAR_BUILD_ERROR                      = 210,
+    SONAR_GATE_FAILED                      = 211
 }