Apt-get Error Code 100

If the title does not make any sense to you, you do not have a problem. Since nothing is broken, there is no need to fix anything. Please skip the following. But do read on if you, like me, while trying to update the software on your computer, got an error message the kind of this: Failed to exec method /usr/lib/apt/methods/ E: MethodĀ  has died unexpectedly! E: Sub-processĀ  returned an error code (100) E: Method /usr/lib/apt/methods/ did not start correctly