AppDesigner Project not Opening

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i was just working on my appdesigner project and i don't remember editing any settings i just added a simple line of code to send message by CAN . now the project runs normally but when i try to open it in appdesigner to edit the code it doesn't open while all the other projects files opens normally , it just show me empty screen
i restarted the laptop and matlab and it still doesn't work

Accepted Answer

Ibrahim Essam
Ibrahim Essam on 19 Jan 2018
I opened the file in a newer version of MATLAB, I think it was 2017a and the upgrade procedures which shows when you open a project from an older Matlab version in new one, fixed my project file.

More Answers (1)

Walter Roberson
Walter Roberson on 22 Mar 2017
Some people have been able to recover appdesigner use if they rename their prefdir -- that is, a preference might have messed something up.
Neil on 18 Jan 2018
I am having the same problem. mlapp file was created in 2016b and modified in 2017a. Tested on 2 computers with 2017a...runs and opens fine. Tested on 2 computers with 2017b...runs fine but won't open. Dialog box saying 'Error loading XXXX.mlapp' but no other information.

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