If your test is failing on this error, often times it will be caused by a syntax or compilation issue in your code.

Debugging in our Main UI

After changing the code in the Code Editor tab, click Save Code. This will update the code running on your sandbox:

Now try running the sandbox web application by using the functionality you patched (e.g. log in, search, etc) to find the error. 

You will see any errors in the "Sandbox Output" section on the bottom of the screen.

Clicking Sandbox Output will show you any print/stdout/stderr output and any stack traces from your code:

Debugging in our Legacy UI

Several of our lessons are still being migrated to our new UI. But some of the same principles apply.

After clicking Patch Sandbox:

The code on your sandbox will be updated. Then go back to the sandbox web application and try running the function you patched (e.g. login, search, etc) to find the error.

You will see any errors in the "OUTPUT & ERRORS" on the right side of the screen.

Clicking on the "OUTPUT & ERRORS" tab will show you the output from your code:

Our Legacy UI will sometimes suppress the stack traces from your code. If you are having trouble debugging your code, please go back to the HackEDU app and chat with us with the Chat icon in the bottom right of the screen. Our support team can help!

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