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Power Platform Community / Forums / Power Apps / Application stopped wo...
Power Apps
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Application stopped working in Power Apps Studio

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Posted on by 30

Hello 


We have pretty big app with about 20 forms and 35 tables and views from Sql Server

and with data caching for offline mode (using SaveData, LoadData).

Last time the app was modified in May and it worked fine then in Studio and currently published version works correctly.

PublishedVersions.png

But when I tried to open the app in Studio it opens the app about 15min (before was about 1 min).

After first opening it shows message that schema was changed for some tables and suggest refresh and reload (but nothing has been changed in schema).

After reloading it shows me huge amount of errors - 1500.

So it looks like there were some breaking changes between v 3.20023.8 and v 3.20073.28.

But I have looked through Power Apps and couldn't find what changes might cause such problems.

Most error are related to collections loaded from tables and looks like follows:

 

Errors.png

 

 

Errors2.png

So it doesn't recognized correctly collection created manually or loaded from Data Sources - but not for all collections, most of them show no errors and only several with errors. 

I have tried to re-add data source, tried in different browsers but still couldn't resolve or identify reason of this problem.

 

Does someone else experience such problem with Studio?

I would appreciate any help on this problem.

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I have the same question (0)
  • pbdan Profile Picture
    3 on at

     I am having a similar problem with the collection showing an error.

  • Verified answer
    VasylV Profile Picture
    30 on at

    It took me a while but I find cause of the error.
    In one screen it cannot add item into collection with cached from DB data and this caused about 2000 errors in other screens
    as the collection become invalid which in turn makes invalid formula which loads data from DB to cache collections.
    This is insane I had to literally remove screens one by one to find the root problem.

    I am not fully sure but it tread one field as if not belong to iterated collection but from global or local context.
    I have fixed this by using ThisRecord for problem field so possibly the problem was caused by this new features: https://powerapps.microsoft.com/en-us/blog/formulas-thisrecord-as-and-sequence/
    PowerAppError.png

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