Error fix

restservice/src/main/java/com/plannaplan/controllers/GroupController.java

@@ -36,7 +36,7 @@ public class GroupController {
     @GetMapping("/course/{id}")
     @ApiOperation(value = "Return list of lectures and classes (if present) given course")
     public ResponseEntity<GetCourseGroupsResponse<? extends DefaultGroupResponse>> getCourses(
-            @PathVariable(name = "id") @ApiParam(value = "Id of course") Long id,
+            @PathVariable(name = "id") Long id,
             @RequestParam(name = "capacity", defaultValue = "true") @ApiParam(value = "Boolean if we want to have capacity field in response") Boolean capacity) {
         List<Groups> groups = this.groupService.getGroupsByCourse(id);
         if (capacity) {