[Solved] GLIBCXX_3.4.20 not found, how to fix this error?
Whey I try to run the program Layout Editor (available on this site) on Ubuntu 14.04.1 64-bit LTS I get the following output in the terminal:
$ layout layout: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.20' not found (required by layout)
I tried the command
/usr/lib/x86_64-linux-gnu/libstdc++.so.6 as following and here is the input and the output:
$ strings /usr/lib/x86_64-linux-gnu/libstdc++.so.6 | grep GLIBCXX GLIBCXX_3.4 GLIBCXX_3.4.1 GLIBCXX_3.4.2 GLIBCXX_3.4.3 GLIBCXX_3.4.4 GLIBCXX_3.4.5 GLIBCXX_3.4.6 GLIBCXX_3.4.7 GLIBCXX_3.4.8 GLIBCXX_3.4.9 GLIBCXX_3.4.10 GLIBCXX_3.4.11 GLIBCXX_3.4.12 GLIBCXX_3.4.13 GLIBCXX_3.4.14 GLIBCXX_3.4.15 GLIBCXX_3.4.16 GLIBCXX_3.4.17 GLIBCXX_3.4.18 GLIBCXX_3.4.19 GLIBCXX_DEBUG_MESSAGE_LENGTH
How can I resolve this issue I somehow guess that it is related with
GCC but cannot figure out how to fix the problem. Furthermore, I have tried a PPA as suggested on How do I use the latest GCC on Ubuntu? and there is a similar question for an older version of Ubuntu at GLIBCXX_3.4.15 not found. However, after I ran
sudo update I get numerous warnings and the list I obtained with the strings command did not have new entries after installing
gcc 4.9, so I purged the PPA(Toolchains Test Builds) with
ppa-purge. Any help, suggestions on how to proceed are greatly appreciated.
I was having the same problem when trying to run other program, and found a solution on StackOverflow.
Basically, just do the following commands:
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
I didn’t perform the “dist-upgrade” command, but the ones before solved it for me
It happened to me with anaconda 4.0.0 (as @mjp stated), but the fix for me was to run this command in my environment:
conda install libgcc
I had this issue – it was because
Anaconda2 didn’t have the GLIBCXX_3.4.20 version of whatever that thing is. Only up to .19, the same as yours.
However, Ubuntu’s library did have it. So I just created a softlink/shortcut in the Anaconda library to the actual Linux library containing that GLIBCXX_3.4.20, replacing the previous one, and it worked fine after restarting the python GUI (Spyder).
There should be a folder called
libstdc++.so.6 in the Anaconda library, which is here:
~/anaconda2/lib. Within this folder is the versions of the script/library-code-thing, excluding the one that you’re missing: GLIBCXX_3.4.20
Follow these steps to solve the issue:
go to the right location and backup your current
anaconda2shortcut (change its name so it isn’t overwritten):
cd ~/anaconda2/lib mv -vf libstdc++.so.6 libstdc++.so.6.old
create a new shortcut using the
lncommand (I am assuming that I am in the previous location ~/anaconda2/lib):
ln -s /usr/lib/x86_64-linux-gnu/libstdc++.so.6 ./libstdc++.so.6
restart spyder / other interface you use
It should now work!
I solved problem like this (but GLIBCXX_3.4.21) on CentOS but it is not dependent from os. The library is part of gcc compiler so need to install or compile appropriate version of gcc. This is table of versions of gcc and versions of appropriate libstdc++:
GCC 4.9.0: libstdc++.so.6.0.20 GCC 5.1.0: libstdc++.so.6.0.21 GCC 6.1.0: libstdc++.so.6.0.22 GCC 7.1.0: libstdc++.so.6.0.23 GCC 7.2.0: libstdc++.so.6.0.24 GCC 8.0.0: libstdc++.so.6.0.25
( full list of versions is here )
It is not dependent from how to install gcc – it may be installed from package or compiled and installed from sources.
It is possible that system gcc libraries is available instead of newely installed. So need to specify environment variable where to find libraries for example in command line like this:
$ LD_LIBRARY_PATH=/usr/local/lib64 command args ...
This workaround is required to avoid libstdc++ errors while running “extended” hugo with SASS support.
wget -q -O libstdc++6 http://security.ubuntu.com/ubuntu/pool/main/g/gcc-5/libstdc++6_5.4.0-6ubuntu1~16.04.10_amd64.deb sudo dpkg --force-all -i libstdc++6
wget -q -O hugo.deb https://github.com/gohugoio/hugo/releases/download/v0.46/hugo_extended_0.46_Linux_64bit.deb sudo dpkg -i hugo.deb
I found this solution here on the Hugo support forum
I’ve had that numerous times through out the years with many different packages. It has always been resolved by:
sudo apt-get dist-upgrade
If your dist is upgradable, it will almost always bring down a new C++ library and reconfig things such as that they work again. The issue is almost always caused by your system not pointing to the right library. In my case, usually caused by pointing to a cross-compiler version of a library.
sudo cp /usr/bin/YourGccVersionLibrary/lib64/libstdc++.so.6 /usr/bin/YourGccVersionLibrary/lib64/libstdc++.so.6.0.20 /usr/lib/x86_64_linux-gnu/
I had the same issue while installing Ubuntu 18.04 in Virtualbox with the live-server image. I’m not sure what I did wrong but got the same error
"apt-get: symbol lookup error: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: undefined symbol: , version GLIBCXX_3.4.11"
I was using 64-bit and had to download this file by using
and installed using
Then everything runs normal with APT.
Then did an
apt-get upgrade to make sure all is well.