How to Install Libtiff4 & Libtiff4-dev on Ubuntu 20.04

Installing libtiff5

2. 2. Installing libtiff5

   First, Try with the libtiff4 Substitute
   Installing it with:

   sudo apt install libtiff5 libtiff5-dev

   If this Solve your issue then you can Skip the Rest of the Guide…
   Authenticate with the User Admin Pass.
   If Got “User is Not in Sudoers file” then see: How to Enable sudo.