I tried to install two programs at once in Ubuntu via terminal. it says this.
E: Could not get lock /var/lib/apt/lists/lock - open (11: Resource temporarily unavailable) E: Unable to lock directory /var/lib/apt/lists/
Could not get lock: why does
/var/lib/apt/lists/lock need to be locked?
I'm so glad if anyone can explain the application installation process for me. Also something about advantages and disadvantages of using a package manager like "apt" compared to the package manager in MS windows.