Qt Library error

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cmake

main.cpp

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and it says it [build] C:/Users/Selyodka/Desktop/codit/CPP/vscode/qtcalcul/mainwindow.cpp:1:10: fatal error: mainwindow.h: No such file or directory
[build] 1 | #include "mainwindow.h"
[build] | ^~~~~~~~~~~~~~

[brisk adder]

Do you have a file mainwindow.h? :D

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no

but

it should autocreate?

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@brisk adder