`GLIBCXX_3.4.22' not found about napajs

[helloshuangzi]

This stackoverflow page also resolved this problem.

Basically, just do the following commands: Firstly, install:
sudo apt-get install libstdc++6
This should already be installed by default, but try it anyway. If it doesn't solve it, just do the following:
sudo add-apt-repository ppa:ubuntu-toolchain-r/test
sudo apt-get update
sudo apt-get upgrade
sudo apt-get dist-upgrade

[helloshuangzi]

@tigercosmos Please refer this problem in FAQ

[tigercosmos]

I see. Thanks for workaround. Shall we add note on README? As user would probably follow by the README and believe it will work.

[daiyip]

FAQ is added to README via #97