C2_Week3 an error datasource of that name already exist

How can I remove created db.

Hello @Ellen-Alice,

If you want to create a new datasource you could delete great_expectations.yml and config_variables.yml files and run great_expectations init again to recreate the files.

Then you could start over add MYSQL_CONNECTION_STRING in the new config_variables.yml and will alow you to create a new datasource with the same name. Thank you

Thank You! I am trying to do so, but in the file great_expectations.yml I do not have placeholders . And also, I run into an error

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Hello @Ellen-Alice,

First you need to delete those two files, then you could replace the placeholders in step 1.3 after you create a new file in gx/great_expectations.yml and run great_expectations store list.

Then run the cells 2.1 with context and if you succeed continue with the datasource and edit the new gx/uncommitted/config_variables.yml and follow the instructions in 3.1 to edit the file. Here is the issue I reproduced if you add an extra /taxi_trips at the end in the config_variables.yml file

Hope it helps


I have made all the steps from the beginning few times and finally had no errors and everything worked same as in the instruction, but the grade is 80% and content in S3 docs buckets is empty, despite I can see them.

Thank You, @Georgios for the help!

Hello @Ellen-Alice,

I had issues with the grader if it says:

there was a problem grading your submission. Details:
[Errno 2] No such file or directory:'/shared/submission/submission.ipynb''

Could you try to rerun some of the cells and resubmit maybe it fixes. Hope it helps