>>> Week 1 >>> Programming Assignment: Housing Prices

Problem Description:
The same error keeps happening no matter how I submit. All of their requirements have been met, but the problem has not been resolved.

Error Message:
Failed test case: model has incorrect type.
Expected:
<class 'keras.engine.training.Model'>,
but got:
<class 'NoneType'>.

Please see this link to learn about grader metadata.
If grader metadata is missing, refresh your workspace and try again.
See Refresh your Lab Workspace section here
If you’ve already done this, contact coursera help

Should you be unsure if this is a metadata issue or your solution is wrong, click my name and message your notebook as an attachment.

Thank you for your information. How can I add your name and message to my notebook as an attachment?

This is my lab ID : astgehzs

Once you click my name, an option to message will appear. Use the feature to send me your notebook as an attachment. Mentors don’t have access to your lab.