Q Light Controller+

can someone please help!
I've tried multiple ways to install this and keep getting messages like this. what am i doing wrong.
i have downloaded it and can see it in my downloads. i tried zipped and unzipped

dwarren@raspberrypi:~ $ sudo dpkg -i qlcplus_4.13.1_amd64.deb
dpkg: error: cannot access archive 'qlcplus_4.13.1_amd64.deb': No such file or directory
dwarren@raspberrypi:~ $

have you loaded the deb file in the folder where you issue the dpkg command?

Note the amd64 image is not going to work on Raspberry Pi – you'll need arm64 e.g. something like qlcplus_4.13.1_arm64.deb

Ensure the file is in the folder you are currently in - you can use the ls command and you should see it there.

Also, you may need to add "./" to the beginning of the deb file, such as sudo dpkg -i ./qlcplus_4.13.1_amd64.deb

Also, dpkg command has not worked for me because of missing dependencies (although this is not your problem based on your error message), I used sudo apt install ./qlcplus_4.13.1_arm64.deb