# Grading Error with Programming Assignment: Improve MNIST with convolutions **URL:** \ **Category:** Introduction to TF for Artificial Intelligence ...\ **Tags:** week-module-3\ **Created:** [October 17, 2022, 6:05pm UTC](https://community.deeplearning.ai/t/grading-error-with-programming-assignment-improve-mnist-with-convolutions/218826 "2022-10-17T18:05:07Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![Joachim\_Asare](https://avatars.discourse-cdn.com/v4/letter/j/7ab992/32.png) [@Joachim\_Asare](https://community.deeplearning.ai/u/Joachim_Asare)\ **Post date:** [October 17, 2022, 6:05pm UTC](https://community.deeplearning.ai/t/grading-error-with-programming-assignment-improve-mnist-with-convolutions/218826/1 "2022-10-17T18:05:07Z")
I keep getting the error shown below for Programming Assignment: Improve MNIST with convolutions. I have made multiple submissions. On some submissions one or two of, reshape\_and\_normalize and/or mycallback and/or covolutional\_model are graded and the other(s) not graded. I have attached screenshots here _ **" Platform Error: We’re experiencing some technical difficulties** _ _ **Please try submitting again in 10 minutes. If the error isn’t resolved in 24 hours, please reach out to Coursera through our Help Center."** _ ![11](https://global.discourse-cdn.com/dlai/original/3X/d/7/d72441b227280437b1eb57133de26300f8b7a023.jpeg) ![113](https://global.discourse-cdn.com/dlai/original/3X/7/a/7abc4455807add2c98acb8ffa027644e3c99ecc3.jpeg) ---
**Author:** ![balaji.ambresh](https://sea1.discourse-cdn.com/dlai/user_avatar/community.deeplearning.ai/balaji.ambresh/32/128697_2.png) [@balaji.ambresh](https://community.deeplearning.ai/u/balaji.ambresh)\ **Post date:** [October 18, 2022, 5:39pm UTC](https://community.deeplearning.ai/t/grading-error-with-programming-assignment-improve-mnist-with-convolutions/218826/2 "2022-10-18T17:39:11Z")
Please click my name and message your notebook as an attachment. ---
**Author:** ![balaji.ambresh](https://sea1.discourse-cdn.com/dlai/user_avatar/community.deeplearning.ai/balaji.ambresh/32/128697_2.png) [@balaji.ambresh](https://community.deeplearning.ai/u/balaji.ambresh)\ **Post date:** [October 19, 2022, 4:39am UTC](https://community.deeplearning.ai/t/grading-error-with-programming-assignment-improve-mnist-with-convolutions/218826/3 "2022-10-19T04:39:31Z")
I don’t see a problem with your notebook. Please submit one more time now. If that doesn’t work, reach out to coursera help. ---
**Author:** ![Joachim\_Asare](https://avatars.discourse-cdn.com/v4/letter/j/7ab992/32.png) [@Joachim\_Asare](https://community.deeplearning.ai/u/Joachim_Asare)\ **Post date:** [October 19, 2022, 8:44am UTC](https://community.deeplearning.ai/t/grading-error-with-programming-assignment-improve-mnist-with-convolutions/218826/4 "2022-10-19T08:44:11Z")
I have reached out to Cousera and they asked me to reach out to the DL community. Hence, that’s why I made the post. ---
**Author:** ![balaji.ambresh](https://sea1.discourse-cdn.com/dlai/user_avatar/community.deeplearning.ai/balaji.ambresh/32/128697_2.png) [@balaji.ambresh](https://community.deeplearning.ai/u/balaji.ambresh)\ **Post date:** [October 19, 2022, 10:05am UTC](https://community.deeplearning.ai/t/grading-error-with-programming-assignment-improve-mnist-with-convolutions/218826/5 "2022-10-19T10:05:01Z")
Moving forward, it’d help if you shared the fact that you had already reached out to coursera help center when creating the topic. I’ve now notified the staff about this issue. ---
**Author:** ![Joachim\_Asare](https://avatars.discourse-cdn.com/v4/letter/j/7ab992/32.png) [@Joachim\_Asare](https://community.deeplearning.ai/u/Joachim_Asare)\ **Post date:** [October 19, 2022, 12:06pm UTC](https://community.deeplearning.ai/t/grading-error-with-programming-assignment-improve-mnist-with-convolutions/218826/6 "2022-10-19T12:06:00Z")
Sure. Well noted. Thank you. I’ll be waiting for a response from the staff then ---
**Author:** ![chris.favila](https://sea1.discourse-cdn.com/dlai/user_avatar/community.deeplearning.ai/chris.favila/32/126338_2.png) [@chris.favila](https://community.deeplearning.ai/u/chris.favila)\ **Post date:** [October 20, 2022, 9:31am UTC](https://community.deeplearning.ai/t/grading-error-with-programming-assignment-improve-mnist-with-convolutions/218826/7 "2022-10-20T09:31:19Z")
Hi Joachim! Welcome to the community! It seems the grader has issues with the model size. Please try reducing the number of units in the Conv2D and Dense layers. We added a unit test to tell you if the model can be submitted to the grader. You should see it when you re-open the notebook. You can copy your old solutions into the new notebook, then modify the number of units there. Remember to press the Submit button from the new notebook instead of the old one because it has the filename passed on to the grader. Hope it works! ---
**Author:** ![Joachim\_Asare](https://avatars.discourse-cdn.com/v4/letter/j/7ab992/32.png) [@Joachim\_Asare](https://community.deeplearning.ai/u/Joachim_Asare)\ **Post date:** [October 20, 2022, 10:44am UTC](https://community.deeplearning.ai/t/grading-error-with-programming-assignment-improve-mnist-with-convolutions/218826/8 "2022-10-20T10:44:51Z")
It worked now. Thanks a lot. ---
**Author:** ![ABDELLAH\_TETOUANI](https://avatars.discourse-cdn.com/v4/letter/a/58956e/32.png) [@ABDELLAH\_TETOUANI](https://community.deeplearning.ai/u/ABDELLAH_TETOUANI)\ **Post date:** [January 11, 2024, 8:35pm UTC](https://community.deeplearning.ai/t/grading-error-with-programming-assignment-improve-mnist-with-convolutions/218826/9 "2024-01-11T20:35:28Z")
Hello @chris.favila i still have the same grader error even though , i reduced the number of units in the Conv2D and Dense layers