Try this:

sudo nano /etc/lsb-release
change “DISTRIB_ID=LinuxMint” for “DISTRIB_ID=Ubuntu“

Save changes

Then do the following:

sudo apt-get install software-center
sudo nano /usr/share/software-center/softwarecenter/distro/__init__.py

find line 112 in the _get_distro() function:

distro_id = subprocess.Popen([“lsb_release”,”-i”,”-s”], stdout=subprocess.PIPE).communicate()[0].strip()

And just change it to:

distro_id = “Ubuntu”

Then run software-center, it should work now!

After making sure that it works, just fix back what you changed before:

sudo nano /etc/lsb-release

change “DISTRIB_ID=Ubuntu” for “DISTRIB_ID=LinuxMint“

Save changes

Now Ubuntu Software Center works!!!