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valid pointer system Nullreference exception

I have created an App with bespoke entity and two relationship fields. If I create a new record it displays fine. However when I try and edit the app again I get this error " Invalid pointer System.NullReference Exception:Object Reference not set to an isnatnce of an Object at Microsoft.Appmagic.Authoring.Document.get_datasource() "

If I open the data in excel and save it again the app opens in edit mce fine !

Any Ideas


Community Support Team
Community Support Team

Re: valid pointer system Nullreference exception

Hi Rlmckean,


I have a custom entity which has two relationship fields.
According to your description, I create an app based on this entity.
I create a new record and save it to the data source, then edit it again, I can save the modified data to data source with no error.
The configuration of my app looks like below:



Do you have any other special configures on the app or entity? Please provide more details to reproduce this issue on my side.

Please also try again it on your side to see if it works now.

Best regards,
Mabel Mao

Community Support Team _ Mabel Mao
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

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