libstdc++.so.6: version `GLIBCXX_3.4.29' not found

docker 환경이라 sudo를 쓰지 않았다.

 

방법 1

apt-get update

apt-get install libstdc++6

 

방법 2

add-apt-repository ppa:ubuntu-toolchain-r/test

apt-get update

apt-get install gcc-4.9 # 4.8 가능

apt-get upgrade libstdc++6

 

추가 에러

1.

add-apt-repository: command not found

 

  solution

apt-get install software-properties-common

 

2.

The repository 'https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64  InRelease' is no longer signed.

  solution

apt-key adv --keyserver keyserver.ubuntu.com --recv-keys A4B469963BF863CC