ERROR: Could not find suitable executable for Exec entry when trying to

Hi,
I want to use pack my GTK application, bu when executing this commands

          wget -c "https://raw.githubusercontent.com/linuxdeploy/linuxdeploy-plugin-gtk/master/linuxdeploy-plugin-gtk.sh"
          wget -c "https://github.com/linuxdeploy/linuxdeploy/releases/download/continuous/linuxdeploy-x86_64.AppImage"
          mkdir AppDir
          cp target/release/czkawka_gui /AppDir
          ./linuxdeploy-x86_64.AppImage --appdir AppDir --plugin gtk --output appimage --icon-file icon.png --desktop-file pkgs/com.github.qarmin.czkawka.desktop

I’m getting this error

ERROR: Could not find suitable executable for Exec entry: czkawka_gui 

This is how looks my desktop file

[Desktop Entry]
Version=1.0.0
Type=Application
Terminal=false
Exec=czkawka_gui
Name=Czkawka
Comment=Multi functional app to find duplicates, empty folders etc.
Icon=icon

Hello @qarmin. Welcome.

Please post the output of find ./AppDir.

I already implemented in CI creating Appimage - https://github.com/qarmin/czkawka/commit/460a3c22b3d122aeba27f5d63a0afdb80d76c555

The problem was with copying binary to AppDir instead AppDir/usr/bin