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Level 8

[URGENT] Error while using PowerApps Studio



I'm always getting an error while using PowerApps Studio on Web version.

This is the error:

WebAuthoring abnormal termination.
Client date/time: 2017-07-19T16:10:23.307Z
Version: 2.0.663
Session ID: 67ee0322-37d0-0a7f-8b80-147321ccb38c
description: {"error":{"isTrusted":true,"detail":{"exception":{}},"message":"Uncaught TypeError: Cannot read property 'length' of null","filename":"","lineno":... TypeError: Cannot read property 'length' of null","setPromise":"[function]","exception":{}}
stack: null
errorNumber: 0
errorMessage: Uncaught TypeError: Cannot read property 'length' of null

Does it happens to anyone else?

I'm getting this error since the last update...


Best regards,

Jorge Moreira


Community Support Team
Community Support Team

Re: [URGENT] Error while using PowerApps Studio

Hi jmoreira_myp,


Which browser are you using? Please try to clear the browser cache and login with InPrivate mode to see if it will work.


I have seen a similar issue on another thread, @AndyPennell has made some suggestions on this issue, please also try if the suggestions will work for you. The thread link is:


I will also keep an eye on the similar thread in case there are any updates on this issue.

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.
Level 8

Re: [URGENT] Error while using PowerApps Studio

Hi @v-yamao-msft,


I just tried your suggestions but nothing worked...

I also saw the thread but that's not my case! As @AndyPennell said, the problem is having a form inside a Gallery, and I've nothing with that... I have this error while performing screen order (the only pattern I discovered 'till now).

Any other suggestion?


Best regards,

Jorge Moreira

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