[Solved] : Could not get lock in Ubuntu Decoder Installation Error

• Sometime, We Combat the error at installation of Decoder in Ubuntu and Difficult to understand what Actual mean of that.
• So, Don't worry about this error we know the Solution of that.

➥ Follow this Steps to solve:

• Open Terminal by pressing Ctrl+Alt+t.
• Delete the Lock file using this command

       ' sudo rm /var/lib/apt/lists/lock '

• Also need to Delete Lock file in the Cache Memory

       ' sudo rm /var/cache/apt/archives/lock '

       ' sudo rm /var/lib/dpkg/lock ' 

• now, need to reboot your computer.
• Now applay the Decoder installation Command (More Detail).

If you have any questions Comment below on comment box,Thanks.