Trying to install qjoypad on pixel desktop.

[Di9ital]

Hello everyone, I need some help with this. I am trying to install the pixel desktop within Retropie. And then install qjoypad. Pixel installs but when I pull up the terminal to update everything I get this output. Sudo apt-get update
dpkg-deb: error: <decompress> subprocess returned error exit status 2
dpkg: error processing archive /var/cache/apt/archives/libavcodec-dev_7%3a4.1.10-0+deb10u1+rpt1_armhf.deb (--unpack):
cannot copy extracted data for './usr/lib/arm-linux-gnueabihf/libavcodec.a' to '/usr/lib/arm-linux-gnueabihf/libavcodec.a.dpkg-new': unexpected end of file or stream
Preparing to unpack .../python3-ptyprocess_0.6.0-1_all.deb ...
Unpacking python3-ptyprocess (0.6.0-1) ...
dpkg-deb (subprocess): decompressing archive member: lzma error: compressed data is corrupt
dpkg-deb: error: <decompress> subprocess returned error exit status 2
dpkg: error processing archive /var/cache/apt/archives/python3-ptyprocess_0.6.0-1_all.deb (--unpack):
dpkg-deb --fsys-tarfile subprocess returned error exit status 2
Errors were encountered while processing:
/var/cache/apt/archives/libavcodec-dev_7%3a4.1.10-0+deb10u1+rpt1_armhf.deb
/var/cache/apt/archives/python3-ptyprocess_0.6.0-1_all.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

Not sure what any of this is. Never had an issue like this before with the package manager. It doesn't let me install qjoypad. I am using a pi4 8gb with Experimental Pis default image for the Pi boy DMG. I know this works as there are tutorials all over the web referencing this.

I have tried running apt --fix-broken install with no luck either. Please advise as I am stumped here.

[mitu]

Looks like the files (.deb packages) downloaded by apt are corrupted. Try removing them with apt clean or directly removing the .deb files from /var/cache/apt/archives - then installing again the desktop.