MATLAB Answers

Appdesigner apps won't run

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Scott Gorman
Scott Gorman on 6 May 2020
Commented: Scott Gorman on 11 May 2020
Whenever I try and run an appdesigner app I get this error. I can't run anything what do I do?
Error: File: AppManagementService.m Line: 65 Column: 63
Invalid expression. Check for missing multiplication operator, missing or unbalanced delimiters, or other syntax error. To construct
matrices, use brackets instead of parentheses.
Error in appdesigner.internal.appalert.AppAlertController/addErrorAlertListener (line 54)
addlistener(appdesigner.internal.service.AppManagementService.instance(), 'CallbackErrored',...
Error in appdesigner.internal.model.AppModel/addErrorAlertListener (line 520)
Error in appdesigner.internal.model.AppModel.runAppHelper (line 641)
Error in appdesigner.internal.model.AppModel>@()appdesigner.internal.model.AppModel.runAppHelper(obj,appArguments) (line 509)
funcHandle = @()appdesigner.internal.model.AppModel.runAppHelper(obj, appArguments);


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Geoff Hayes
Geoff Hayes on 8 May 2020
Scott - do you get this error when creating a new app? Or does this just occur for your current app?
Mohammad Sami
Mohammad Sami on 8 May 2020
The error itself is likely to be in a callback from your app code.
You should set a debug pointer in the constructor and step by step to see where the error originate from.
Scott Gorman
Scott Gorman on 11 May 2020
It occurs for all apps I have. If I create a new app it doesn't appear but as soon as I save and run that new app I get the same error.

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Answers (1)

Sean de Wolski
Sean de Wolski on 11 May 2020
Sounds like you may have corrupted: appdesigner.internal.service.AppManagementService. Probably worth contacting tech support. At least in R2020a, line 54 of that file is a comment.

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Scott Gorman
Scott Gorman on 11 May 2020
Thank you I have just submitted a report.

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