Installing icons for QT C++ applications on macOS

I ran into a problem when trying to install the icon for my macOS QT application. I followed the tutorial and placed the format file .icns in the project folder. in the. pro file, I wrote:

ICON = "/Users/philipp/Desktop/Electro/logo.icns"

I tried with and without quotes, the full path to the file and just the file name. Collected for release. But I still see it:

enter a description of the image here

Maybe someone faced the same problem?

Author: Philipp Lazarev, 2020-05-31
Source