# TensorFlow: Data and Deployment Specialization **URL:** https://community.deeplearning.ai/c/course-q-a/tensorflow-data-and-deployment-specialization/40.md [Latest](https://community.deeplearning.ai/latest.md) · [Categories](https://community.deeplearning.ai/categories.md) · [Tags](https://community.deeplearning.ai/tags.md) --- ## [About the TensorFlow: Data and Deployment Specialization category](https://community.deeplearning.ai/t/about-the-tensorflow-data-and-deployment-specialization-category/3788)
**Author:** [@agparth](https://community.deeplearning.ai/u/agparth)\ **Replies:** 0\ **Last updated:** [May 7, 2021, 7:35am UTC](https://community.deeplearning.ai/t/about-the-tensorflow-data-and-deployment-specialization-category/3788 "2021-05-07T07:35:26Z")
To ensure a smooth and productive experience for everyone, here are a few important guidelines regarding posting in our forum: Category Permissions: Please note that learners are not allowed to post in all categorie… --- ## [Grading Error on Submission](https://community.deeplearning.ai/t/grading-error-on-submission/892823)
**Author:** [@OF4](https://community.deeplearning.ai/u/OF4)\ **Replies:** 4\ **Last updated:** [June 14, 2026, 12:28am UTC](https://community.deeplearning.ai/t/grading-error-on-submission/892823 "2026-06-14T00:28:36Z")
\*\*I have made 3 submissions on Exercise 2 in week 2 (Advanced Deployment Scenarios with TensorFlow), but I keep getting the same error on submission. This is the message I got after submission \*\* Cell #UNQ\_C1. Can’t co… --- ## [C3W2 Assignment: Kernel keeps crashing in the "Split the dataset" cell](https://community.deeplearning.ai/t/c3w2-assignment-kernel-keeps-crashing-in-the-split-the-dataset-cell/888522)
**Author:** [@mahmoud.j](https://community.deeplearning.ai/u/mahmoud.j)\ **Replies:** 5\ **Last updated:** [February 18, 2026, 6:04am UTC](https://community.deeplearning.ai/t/c3w2-assignment-kernel-keeps-crashing-in-the-split-the-dataset-cell/888522 "2026-02-18T06:04:49Z")
I am working on the “Data Pipelines with TensorFlow Data Services” , week 2 assignment and the kernel keeps crashing in the Split the dataset I suspect the issue is that the runtime is running a different version that … --- ## [C2W2: practically impossible to complete the assignment on data augmentation](https://community.deeplearning.ai/t/c2w2-practically-impossible-to-complete-the-assignment-on-data-augmentation/886340)
**Author:** [@georggr](https://community.deeplearning.ai/u/georggr)\ **Replies:** 1\ **Last updated:** [January 5, 2026, 6:45pm UTC](https://community.deeplearning.ai/t/c2w2-practically-impossible-to-complete-the-assignment-on-data-augmentation/886340 "2026-01-05T18:45:08Z")
I am experiencing persistent technical issues with C2W2 that make it extremely difficult to complete the assignment. The page is very slow to load from the outset, and I encounter repeated kernel crashes for no clear re… --- ## [Tensorflow C3W4 assignment for part 2](https://community.deeplearning.ai/t/tensorflow-c3w4-assignment-for-part-2/864236)
**Author:** [@dbasick](https://community.deeplearning.ai/u/dbasick)\ **Replies:** 2\ **Last updated:** [August 1, 2025, 9:01am UTC](https://community.deeplearning.ai/t/tensorflow-c3w4-assignment-for-part-2/864236 "2025-08-01T09:01:51Z")
I am struggling so hard on the ‘create n\_gram’ part of this assignment. Part 1 passes the tests, and I’ve tried about 5 different ways to do the 2nd part. It always produces the expected results but when checking with … --- ## [Path advice seeking](https://community.deeplearning.ai/t/path-advice-seeking/786702)
**Author:** [@Alaa\_Sweed](https://community.deeplearning.ai/u/Alaa_Sweed)\ **Replies:** 9\ **Last updated:** [May 18, 2025, 5:02pm UTC](https://community.deeplearning.ai/t/path-advice-seeking/786702 "2025-05-18T17:02:09Z")
I started the “TensorFlow Data and Deployment specialization” and i am currently in week 1 course 1. i discovered that i have to take other courses before this one but i don’t know in what order! In what order should i t… --- ## [Model not learning when run on macbook](https://community.deeplearning.ai/t/model-not-learning-when-run-on-macbook/817048)
**Author:** [@aabdiqani.sq](https://community.deeplearning.ai/u/aabdiqani.sq)\ **Replies:** 6\ **Last updated:** [May 18, 2025, 4:58pm UTC](https://community.deeplearning.ai/t/model-not-learning-when-run-on-macbook/817048 "2025-05-18T16:58:09Z")
Basically, when I run the model, it runs fine on an old intel-based Imac. (slow but runs). On the console I get errors about WebGL not available. On my mac book which has M4 max chip with bunch GPUs, the model doesn’t l… --- ## [C2W1 graded assignment file not opening](https://community.deeplearning.ai/t/c2w1-graded-assignment-file-not-opening/815841)
**Author:** [@fatima6](https://community.deeplearning.ai/u/fatima6)\ **Replies:** 1\ **Last updated:** [May 15, 2025, 6:15pm UTC](https://community.deeplearning.ai/t/c2w1-graded-assignment-file-not-opening/815841 "2025-05-15T18:15:38Z")
C2W1 /notebooks/week1/Exercise\_1\_TF\_Lite\_Question-FINAL.ipynb The notebook is not opening and i am getting this message --- ## [TF Data and Deployment Course 4: Lecture Notes](https://community.deeplearning.ai/t/tf-data-and-deployment-course-4-lecture-notes/61297)
**Author:** [@chris.favila](https://community.deeplearning.ai/u/chris.favila)\ **Replies:** 0\ **Last updated:** [November 8, 2021, 8:48am UTC](https://community.deeplearning.ai/t/tf-data-and-deployment-course-4-lecture-notes/61297 "2021-11-08T08:48:59Z")
Lecture Notes of C4 - Advanced Deployment Scenarios with TensorFlow of the TensorFlow: Data and Deployment Specialization Note: These slides haven’t been maintained, and you might find missing topics and incorrect infor… --- ## [TF Data and Deployment Course 3: Lecture Notes](https://community.deeplearning.ai/t/tf-data-and-deployment-course-3-lecture-notes/61293)
**Author:** [@chris.favila](https://community.deeplearning.ai/u/chris.favila)\ **Replies:** 0\ **Last updated:** [November 8, 2021, 8:42am UTC](https://community.deeplearning.ai/t/tf-data-and-deployment-course-3-lecture-notes/61293 "2021-11-08T08:42:39Z")
Lecture Notes of C3 - Data Pipelines with TensorFlow Data Services of the TensorFlow: Data and Deployment Specialization Note: These slides haven’t been maintained, and you might find missing topics and incorrect inform… --- ## [TF Data and Deployment Course 2: Lecture Notes](https://community.deeplearning.ai/t/tf-data-and-deployment-course-2-lecture-notes/61292)
**Author:** [@chris.favila](https://community.deeplearning.ai/u/chris.favila)\ **Replies:** 0\ **Last updated:** [November 8, 2021, 8:39am UTC](https://community.deeplearning.ai/t/tf-data-and-deployment-course-2-lecture-notes/61292 "2021-11-08T08:39:55Z")
Lecture Notes of C2 - Device-based Models with TensorFlow Lite of the TensorFlow: Data and Deployment Specialization Note: These slides haven’t been maintained, and you might find missing topics and incorrect informatio… --- ## [TF Data and Deployment Course 1: Lecture Notes](https://community.deeplearning.ai/t/tf-data-and-deployment-course-1-lecture-notes/61289)
**Author:** [@chris.favila](https://community.deeplearning.ai/u/chris.favila)\ **Replies:** 0\ **Last updated:** [November 8, 2021, 8:34am UTC](https://community.deeplearning.ai/t/tf-data-and-deployment-course-1-lecture-notes/61289 "2021-11-08T08:34:03Z")
Lecture Notes of C1 - Browser-based Models with TensorFlow.js of the TensorFlow: Data and Deployment Specialization Note: These slides haven’t been maintained, and you might find missing topics and incorrect information… --- ## [C3W2\_Assignment (TFDS-V2-Week2). Error: AttributeError](https://community.deeplearning.ai/t/c3w2-assignment-tfds-v2-week2-error-attributeerror/793700)
**Author:** [@bala\_actuary](https://community.deeplearning.ai/u/bala_actuary)\ **Replies:** 1\ **Last updated:** [March 31, 2025, 11:58am UTC](https://community.deeplearning.ai/t/c3w2-assignment-tfds-v2-week2-error-attributeerror/793700 "2025-03-31T11:58:36Z")
I am getting the below error repeatedly for the C3W2 Assignment (TFDS-V2-Week2). Can anyone please let me know the way to fix this and move on to the next course? --- ## [Become a Mentor for TF2](https://community.deeplearning.ai/t/become-a-mentor-for-tf2/753051)
**Author:** [@Community-Team](https://community.deeplearning.ai/u/Community-Team)\ **Replies:** 0\ **Last updated:** [January 16, 2025, 3:37pm UTC](https://community.deeplearning.ai/t/become-a-mentor-for-tf2/753051 "2025-01-16T15:37:36Z")
Hello TensorFlow: Data and Deployment Specialization Learners, We are looking for active Mentors to be part of our Community! If you have completed the TensorFlow: Data and Deployment Specialization and would like to b… --- ## [Problems with code errors in colab C4\_W1\_Lab\_1\_tfserving\_hello\_world.ipynb](https://community.deeplearning.ai/t/problems-with-code-errors-in-colab-c4-w1-lab-1-tfserving-hello-world-ipynb/751680)
**Author:** [@Cormac\_Garvey](https://community.deeplearning.ai/u/Cormac_Garvey)\ **Replies:** 11\ **Last updated:** [January 16, 2025, 2:59am UTC](https://community.deeplearning.ai/t/problems-with-code-errors-in-colab-c4-w1-lab-1-tfserving-hello-world-ipynb/751680 "2025-01-16T02:59:01Z")
The ‘test the model’ cell fails for me. model.predict(\[10.0\])) fails with valueerror Unrecognized data type: x=\[10\] (of type \) If i change code to… Myinput\_data = np.array(\[10.0\]) print(model.predict(M… --- ## [Feature\_columns.ipynb : AttributeError: module 'keras.\_tf\_keras.keras.layers' has no attribute 'DenseFeatures'](https://community.deeplearning.ai/t/feature-columns-ipynb-attributeerror-module-keras-tf-keras-keras-layers-has-no-attribute-densefeatures/693636)
**Author:** [@Thierry\_Pochon](https://community.deeplearning.ai/u/Thierry_Pochon)\ **Replies:** 2\ **Last updated:** [January 8, 2025, 3:00pm UTC](https://community.deeplearning.ai/t/feature-columns-ipynb-attributeerror-module-keras-tf-keras-keras-layers-has-no-attribute-densefeatures/693636 "2025-01-08T15:00:49Z")
in notebook feature\_columns.ipynb : Coursera | Online Courses & Credentials From Top Educators. Join for Free | Coursera when I run cell : photo\_count = feature\_column.numeric\_column(‘PhotoAmt’) demo(photo\_count) I g… --- ## [C1\_W1\_Assignment Test accuracy](https://community.deeplearning.ai/t/c1-w1-assignment-test-accuracy/553663)
**Author:** [@Nnaemeka\_Nwankwo](https://community.deeplearning.ai/u/Nnaemeka_Nwankwo)\ **Replies:** 4\ **Last updated:** [January 27, 2024, 7:51pm UTC](https://community.deeplearning.ai/t/c1-w1-assignment-test-accuracy/553663 "2024-01-27T19:51:11Z")
Hello everyone please I have an issue. I have tried several model still i can’t get past the 95% for the grader to pass me. I am begining to think its a grader issue. I am also begining to be frustrated. i need someone t… --- ## [Too many values to unpack (expected 2) -can someone point me towards previous lectures on one-hot encoding?](https://community.deeplearning.ai/t/too-many-values-to-unpack-expected-2-can-someone-point-me-towards-previous-lectures-on-one-hot-encoding/746988)
**Author:** [@Cormac\_Garvey](https://community.deeplearning.ai/u/Cormac_Garvey)\ **Replies:** 6\ **Last updated:** [January 6, 2025, 3:10pm UTC](https://community.deeplearning.ai/t/too-many-values-to-unpack-expected-2-can-someone-point-me-towards-previous-lectures-on-one-hot-encoding/746988 "2025-01-06T15:10:42Z")
Hi Folks, im stuck on the week1 exercise for 3 weeks now: Step 3 - Mapping one hot encode function to dataset Previously all cells compiled, but grader does not accept it so i am re writing some cells to see if it mak… --- ## [Assignment TFDS-V2-Week2 The kernel appears to have died. It will restart automatically](https://community.deeplearning.ai/t/assignment-tfds-v2-week2-the-kernel-appears-to-have-died-it-will-restart-automatically/739465)
**Author:** [@Cormac\_Garvey](https://community.deeplearning.ai/u/Cormac_Garvey)\ **Replies:** 4\ **Last updated:** [December 30, 2024, 4:24pm UTC](https://community.deeplearning.ai/t/assignment-tfds-v2-week2-the-kernel-appears-to-have-died-it-will-restart-automatically/739465 "2024-12-30T16:24:42Z")
Cannot progress past # EXERCISE: Split the dataset … without the message: The kernel appears to have died. It will restart automatically. I keep getting dead kernel message. THere is a line of code that splits 1 dat… --- ## [2024 , this problem is back and data\_dir is not the solution: TypeError("\_\_init\_\_() missing 2 required positional arguments: 'op' and 'message'",)](https://community.deeplearning.ai/t/2024-this-problem-is-back-and-data-dir-is-not-the-solution-typeerror-init-missing-2-required-positional-arguments-op-and-message/739368)
**Author:** [@Cormac\_Garvey](https://community.deeplearning.ai/u/Cormac_Garvey)\ **Replies:** 10\ **Last updated:** [December 30, 2024, 3:11pm UTC](https://community.deeplearning.ai/t/2024-this-problem-is-back-and-data-dir-is-not-the-solution-typeerror-init-missing-2-required-positional-arguments-op-and-message/739368 "2024-12-30T15:11:01Z")
Im reposting this common error as all the other threads are closed, and simply adding data\_dir (it was never missing, for me) is not the solution. After 20 grader fails, I find myself spending more time on the coursera g… --- ## [C3W2 Assignment: Grader ran out of memory while grading the submission](https://community.deeplearning.ai/t/c3w2-assignment-grader-ran-out-of-memory-while-grading-the-submission/30644)
**Author:** [@Mubsi](https://community.deeplearning.ai/u/Mubsi)\ **Replies:** 16\ **Last updated:** [December 26, 2024, 1:23pm UTC](https://community.deeplearning.ai/t/c3w2-assignment-grader-ran-out-of-memory-while-grading-the-submission/30644 "2024-12-26T13:23:20Z")
If you do face this error message “Grader ran out of memory while grading the submission. Please contact support or wait for 24 hours to submit” from the grader’s output, comment in this thread if it is still not solved … --- ## [Error: TypeError("\_\_init\_\_() missing 2 required positional arguments: 'op' and 'message'",)](https://community.deeplearning.ai/t/error-typeerror-init-missing-2-required-positional-arguments-op-and-message/220728)
**Author:** [@Z\_G](https://community.deeplearning.ai/u/Z_G)\ **Replies:** 28\ **Last updated:** [December 26, 2024, 10:55am UTC](https://community.deeplearning.ai/t/error-typeerror-init-missing-2-required-positional-arguments-op-and-message/220728 "2024-12-26T10:55:03Z")
I am able to run the complete notebook including the optional evaluation step. However, my grader is failing with this- Cell #3. Can’t compile the student’s code. Error: TypeError(“init() missing 2 required positional … --- ## [Week1 Assignment cell 2 - ouput differs from expected output. is it still correct?](https://community.deeplearning.ai/t/week1-assignment-cell-2-ouput-differs-from-expected-output-is-it-still-correct/739364)
**Author:** [@Cormac\_Garvey](https://community.deeplearning.ai/u/Cormac_Garvey)\ **Replies:** 4\ **Last updated:** [December 25, 2024, 8:34am UTC](https://community.deeplearning.ai/t/week1-assignment-cell-2-ouput-differs-from-expected-output-is-it-still-correct/739364 "2024-12-25T08:34:02Z")
link to the classroom: https://www.coursera.org/learn/data-pipelines-tensorflow/home/week/1 The grader fails this assignment even though code executes correctly in the coursera jupyter notebook. (I am now exploring all… --- ## [Android Studio](https://community.deeplearning.ai/t/android-studio/598706)
**Author:** [@Nnaemeka\_Nwankwo](https://community.deeplearning.ai/u/Nnaemeka_Nwankwo)\ **Replies:** 10\ **Last updated:** [December 18, 2024, 12:27pm UTC](https://community.deeplearning.ai/t/android-studio/598706 "2024-12-18T12:27:23Z")
Hello, everyone please I am having an issue I have the latest android studio installed I am using a Tecno mobile phone and oreo 8.1 andrid version. I can see my device in the android studio but How do I run it to be abl… --- ## [C1\_W1 Assignment upload fail. -submission failed with error 500](https://community.deeplearning.ai/t/c1-w1-assignment-upload-fail-submission-failed-with-error-500/736244)
**Author:** [@Cormac\_Garvey](https://community.deeplearning.ai/u/Cormac_Garvey)\ **Replies:** 3\ **Last updated:** [December 16, 2024, 4:02pm UTC](https://community.deeplearning.ai/t/c1-w1-assignment-upload-fail-submission-failed-with-error-500/736244 "2024-12-16T16:02:29Z")
Device based models with tensor flow lite course 1 week 1 assignment Server 500 fail on attempt to upload exercise. Is the server down? Has anyone else got this? And if so , how to get around it? I didnt see any rele… --- ## [Cannot Pass C1W1 Assignment \[Solved\]](https://community.deeplearning.ai/t/cannot-pass-c1w1-assignment-solved/717357)
**Author:** [@Xanadius](https://community.deeplearning.ai/u/Xanadius)\ **Replies:** 9\ **Last updated:** [December 16, 2024, 12:38pm UTC](https://community.deeplearning.ai/t/cannot-pass-c1w1-assignment-solved/717357 "2024-12-16T12:38:35Z")
I don’t know why, I already used a couple model and found the most promising model but the grader still gave me an output “Almost. Your model has NOT passed the required level of accuracy on the test set. The minimum req… --- ## [C1\_W4\_assignment - issues - fails and some workarounds for VS code & Chrome browser](https://community.deeplearning.ai/t/c1-w4-assignment-issues-fails-and-some-workarounds-for-vs-code-chrome-browser/734923)
**Author:** [@Cormac\_Garvey](https://community.deeplearning.ai/u/Cormac_Garvey)\ **Replies:** 1\ **Last updated:** [December 16, 2024, 1:58am UTC](https://community.deeplearning.ai/t/c1-w4-assignment-issues-fails-and-some-workarounds-for-vs-code-chrome-browser/734923 "2024-12-16T01:58:03Z")
week 4 assignment - rock paper scissors. Im using VS code with a python webserver to serve the html/js for this assignment. I have noticed a couple of issues: I have never made it to 50 clicks for each class (250 clic… --- ## [C1\_W3\_assignment Browser-based Models with TensorFlow.js - cannot convert model to json](https://community.deeplearning.ai/t/c1-w3-assignment-browser-based-models-with-tensorflow-js-cannot-convert-model-to-json/733577)
**Author:** [@Cormac\_Garvey](https://community.deeplearning.ai/u/Cormac_Garvey)\ **Replies:** 11\ **Last updated:** [December 10, 2024, 2:39pm UTC](https://community.deeplearning.ai/t/c1-w3-assignment-browser-based-models-with-tensorflow-js-cannot-convert-model-to-json/733577 "2024-12-10T14:39:48Z")
\-i coudntl even get the tensorflowjs\_converter tool to work. I have a newbie Q regarding C1\_W3\_Assignment, section: Run the TensorFlow.js Converter on The Saved Keras Model What is this cell in this coursera webpage exa… --- ## [C3W2 BBC News](https://community.deeplearning.ai/t/c3w2-bbc-news/732285)
**Author:** [@Sherry\_Marcus](https://community.deeplearning.ai/u/Sherry_Marcus)\ **Replies:** 1\ **Last updated:** [December 7, 2024, 1:30am UTC](https://community.deeplearning.ai/t/c3w2-bbc-news/732285 "2024-12-07T01:30:45Z")
I am getting this error in the pre\_processing section: There was an error grading your submission. Details: {{function\_node \_wrapped\_\_IteratorGetNext\_output\_types\_2\_device/job:localhost/replica:0/task:0/device:CPU:0}} … --- ## [C1W1 -Received an array of 30 Tensors, but expected 1 to match the input keys dense\_Dense1\_input](https://community.deeplearning.ai/t/c1w1-received-an-array-of-30-tensors-but-expected-1-to-match-the-input-keys-dense-dense1-input/728333)
**Author:** [@Cormac\_Garvey](https://community.deeplearning.ai/u/Cormac_Garvey)\ **Replies:** 17\ **Last updated:** [December 5, 2024, 12:42pm UTC](https://community.deeplearning.ai/t/c1w1-received-an-array-of-30-tensors-but-expected-1-to-match-the-input-keys-dense-dense1-input/728333 "2024-12-05T12:42:50Z")
link to classroom: https://www.coursera.org/learn/browser-based-models-tensorflow/home/week/1 This is the breast cancer week 1 assignment I get this error in chrome: Any thoughts on how i would go about troubleshooti… [Next page](https://community.deeplearning.ai/c/course-q-a/tensorflow-data-and-deployment-specialization/40.md?page=1)