Inaccurate error message on step 2 of the tutorial

[jdob]

Description

Following the tutorial step 2, it has me add a details section and specifies that the application is broken. That part is right, it is broken. But instead of the documented:

HeroesComponent.html:3 ERROR TypeError: Cannot read property 'name' of undefined

Instead I get:

Error: src/app/heroes/heroes.component.html:11:25 - error TS2532: Object is possibly 'undefined'.

Also note that the file mentioned in the documented error message doesn't exist. The rest of the tutorial correctly referenced heroes.component.html, but the documented error shows HeroesComponent.html. I'm guessing that's from an older version of Angular and just got missed when the other pieces were being updated.

What is the affected URL?

https://angular.io/tutorial/toh-pt2#add-a-details-section

Please provide the steps to reproduce the issue

Follow the tutorial through "Add a details section"

Please provide the expected behavior vs the actual behavior you encountered

Mentioned in the description; the expected behavior is one error message, but in practice I see a different one.

Please provide a screenshot if possible

No response

Please provide the exception or error you saw

Error: src/app/heroes/heroes.component.html:14:51 - error TS2532: Object is possibly 'undefined'.

Is this a browser-specific issue? If so, please specify the device, browser, and version.

No response

[dario-piotrowicz]

Thanks @jdob good catch, I've opened a PR for clarifying that section 🙂👍

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