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App.OnStart not executing

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Posted on by CCava

Hi,

One of my Power Apps that I created last year (and continue to update) all of a sudden won't execute any of the code written in the App.OnStart. I know there was a recent change with App.StartScreen and other impending declarative changes to Power Apps. The only screen mentions in my App.OnStart is in a collection for app navigation built through a component, but the navigate function is not used:

The announcement for moving to a declarative App.OnStart was only a couple months ago so I did not expect all App.Onstart code would need to be changed so quickly. Does it? Or Is there some other issue happening with App.OnStart?

I've checked my other apps which are far less complex than this one with only collections being created in the App.OnStart and have not seen any issues. I also declare variables in this App.OnStart:

I saw in this Microsoft article a new way to set/declare variable so I updated one (shown above), but it's still not working.

Any help would be greatly appreciated,

Cheryl

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Building Power Apps

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CCava 54 on at

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This issue has been solved and was a much simpler problem: at the very bottom of App.OnStart, I had a Clear(CollectionName) for a collection I no longer had. Once I removed that line, everything worked.
GermanPearls 3 on at

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Thanks for the tip @CCava that there's probably an error in the OnStart code.

In case this helps anyone, click in the OnStart code and scroll through all, if you're lucky PowerApps will highlight any errors with the red squiggly underline.
kat_rock 114 on at

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I had a similar issue. My App.onStart function would not run because I had an extra /* left. Once I removed that it worked again without issue.