How to fixed Project Permission Denied problem for update draft grade and assigned grade of student submission from Google Classroom

Question

I want to update the draft grade and assigned grade from Google Classroom using API. The following problem is seen When I test to update the draft grade and assigned grades using Try this API.

Problem:1

{
  "error": {
    "code": 403,
    "message": "@ProjectPermissionDenied The Developer Console project is not permitted to make this request.",
    "status": "PERMISSION_DENIED"
  }
}

This error may be due to using an insufficient credential type. Try using OAuth 2.0.

Localhost Code:

$client = getClient();
        $service = new Google_Service_Classroom($client);
        $courseId = '393351980716';
        $courseWorkId = '393445838699';
        $id = 'Cg0Iu5q5vHkQ657M2bkL';
        $post_body = new Google_Service_Classroom_StudentSubmission(array(
            'assignedGrade' => 10,
            'draftGrade' => 90
        ));
        $params = array(
            'updateMask' => 'assignedGrade,draftGrade'
          );

        $list = $service->courses_courseWork_studentSubmissions->patch($courseId, $courseWorkId, $id, $post_body,$params);

Then when I run the above code on localhost I see problem-2:

Problem-2

Fatal error: Uncaught Google\Service\Exception: {
  "error": {
    "code": 403,
    "message": "@ProjectPermissionDenied The Developer Console project is not pe
rmitted to make this request.",
    "errors": [
      {
        "message": "@ProjectPermissionDenied The Developer Console project is no
t permitted to make this request.",
        "domain": "global",
        "reason": "forbidden"
      }
    ],
    "status": "PERMISSION_DENIED"
  }
}

How to solve this problem?

Answer 1

According to the Classroom API documentation:

ProjectPermissionDenied indicates that the request attempted to modify a resource associated with a different Developer Console project.

Possible Action: Indicate that your application cannot make the desired request. It can only be made by the Developer Console project of the OAuth client ID that created the resource.

Therefore, if the resource you are trying to modify has been created manually for instance, this means that it is not associated with any developer project, hence the error you are receiving.

You will have to create these resources in the same project in order to be able to execute this request successfully.

Reference

• Classroom API Access Errors.