The ‘gns3-gui==2.2.23’ distribution was not found

I experienced this error in Ubuntu Hirsute Hippo (21.04)The complete error when i run gns3 on terminal

File “/usr/lib/python3/dist-packages/pkg_resources/init.py”, line 777, in resolveraise DistributionNotFound(req, requirers)pkg_resources.DistributionNotFound: The ‘gns3-gui==2.2.23’ distribution was not found and is required by the application

To resolve this error

sudo apt remove gns3

sudo apt remove gns3-server

sudo apt remove gns3

sudo apt remove gns3–server

Update your Ubuntu

sudo apt update
sudo apt upgrade
sudo apt dist-upgrade
sudo apt install update-manager-core

do-release-upgrade

sudo apt update

sudo apt upgrade

sudo apt dist–upgrade

sudo apt install update–manager–core

do–release–upgrade

Re-Install GNS 3

sudo apt update

sudo add-apt-repository ppa:gns3/ppa

sudo apt update                                
sudo apt install gns3-server gns3-gui

sudo apt update

sudo add–apt–repository ppa:gns3/ppa

sudo apt update

sudo apt install gns3–server gns3–gui