Incorrect use of '=' operator occurs in grey out area of app designer.

Question

Yanting Liu 2020-2-18

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https://ww2.mathworks.cn/matlabcentral/answers/506075-incorrect-use-of-operator-occurs-in-grey-out-area-of-app-designer

编辑： Joseph Cheng 2020-2-18

When I tried to run my mlapp file, this warning occurs. Since I was unable to edit any of this grey area, I don't know where does this come from and how to fix it.

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Answer 1

Joseph Cheng 2020-2-18

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https://ww2.mathworks.cn/matlabcentral/answers/506075-incorrect-use-of-operator-occurs-in-grey-out-area-of-app-designer#answer_416049

编辑：Joseph Cheng 2020-2-18

I was unable to create it myself but from the looks of it you might have a function or calculation that isn't terminated correctly in the area you can edit. That woud causing the syntax check to look at that line as incorrect. it probably isn't getting to "compiling" or running it but was doing a syntax check and considering that line as part of user code

Closest i was able to get it was:

note how the incomplete if statement (missing "end") causing it to go and process the gray section