Power Platform Community Forum Thread Details

My app had gotten corrupted.

Open the file
Screen appeared grey in browser, screen showed PowerApps logo in the desktop editor
Controls and their properties could be viewed
If I deleted a control, it was deleted, but its name remained in the lefthand panel.
If I deleted a control, saved the file, and reopened the app, the deletion was confirmed, but the grey screen remains.

I had a recovery file, but it was 35 files and 6 hours earlier.

So I worked backwards from the last good file.

I deleted all the screens and controls in the app, saved the file, opened it and the problem remained. The only thing left were the properties of the empty screen. Apparently I had set a global variable in the OnStart screen that PowerApps did not like:

Set(OnStart,true)

I was able to recover my most recent file by deleting the formula in OnStart. I had originally set that variable so it would trigger a toggle that included the actual commands I wanted for OnStart--in other words, I outsourced the actions to a toggle instead.

I had created the toggle so I could click it upon opening a file since the editor does not trigger the OnStart commands upon opening a file. I assume that is by design so you don't accidentally put Exit() or some bad code in the OnStart commands and kill your app from ever opening.

It is a best practice not to name things after existing controls and functions. I should have known better, but I am putting this out there so it doesn't happen to anyone else. 👌

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Building Power Apps