Post executing the Cell 8 of Module 2 , for feedback integration and code Update . A blank graph is created for “Regenerated Chart V2“ Below is the reference snapshot for the same : [image] [image] Further when i went ahead with further execution, in cell 13 i get new error. **Error : “datet…

[image] zhenpenglu: GPT-4.1 @zhenpenglu : Post model switch from GPT-4.1-mini and GPT-4.1 we get a similar type graph with different color and label get added. which i think is incorrect, correct me if i am wrong. [image] [image] Also in cell 13 if we scroll the bottom of output , the t…

I think it’s because GPT-4.1-mini is stronger than the generation model used in the video, so it doesn’t make the same mistake. The other issue you talked about is from the models too. You should change the default models in the last cell.

Thank you @zhenpenglu for suggestion! For me, change to gpt-4.1-mini and gpt-4.1 resolve some errors. Separate original plot, created with gpt-4o-mini, looks good. Separate revised plot, created with o4-mini, is empty. This time first version of plot in integrated function looks chaotic, and ref…

no problem I didn’t delete because I thought staff might want to look at the error and as it wasn’t part of graded lab.

@saurabh090909 during testing gpt 4.1 was used and it didn’t have any such issues encountered by you all. I appreciate everyone’s reporting and patience. please wait for staff to look into this issue. by then you can move on to next section. Regards DP

[image] saurabh090909: datetime64 type does not support sum operations i still have the same issue. ples inform us after the code is fixed. @lesly.zerna

after swapping, the x-axis on your first chart is by year. and the reflection final chart is by coffee name, right?

I also had the same issue regarding datetime64 not being supported.

Yes, also testing again (with some fixes) I got TypeError: unsupported operand type(s) for +: 'DatetimeArray' and 'str' We’re fixing it with the team! Updates soon :smiley:

M2_UGL_1 - Regenerated Chart V2 is created with no graph plot in it

Course Q&A Agentic AI

lesly.zerna October 16, 2025, 1:23pm 16

Thank you for reporting! I’m testing it myself and I’ll review it over with the team! We’ll update you through this channel!

Code issues with Ungraded Lab: Chart Generation (M2_UGL_1)

Errors in the M2_UGL_1 lab

Ungraded lab - M2 - The chart after reflection is worse than before

An error occur when exec M2_UGL_1

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Unsupported operand type(s) for +: 'DatetimeArray' and 'str' in M2_UGL_1 Agentic AI week-module-2 , dl-ai-learning-platform	19	104	March 11, 2026
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M2_UGL_1 - Regenerated Chart V2 is created with no graph plot in it

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