Hi Kazu You need to restart runtime, then the import statement will work
If you don’t need the very latest version you can also use !time conda install -q -y -c conda-forge rdkit=2020.09.02 The following is much faster than a conda install but currently that only gives you 2020.03 !pip install kora import kora.install.rdkit Best regards, Jan On 22 Dec 2020, at 14.05, kishikir...@nifty.com<mailto:kishikir...@nifty.com> wrote: Dear All, I was able to use RDKit with Google Colaboratory until December 13th, but on December 20th I got the following message and could not use it. ImportError: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.26' not found When I checked with strings /usr/lib/x86_64-linux-gnu/libstdc++.so.6 | grep GLIBCXX, the result was as follows. GLIBCXX_3.4 GLIBCXX_3.4.1 % GLIBCXX_3.4.25 GLIBCXX_DEBUG_MESSAGE_LENGTH So I executed the following: %%bash add-apt-repository ppa:ubuntu-toolchain-r/test -y apt-get update apt-get install gcc-4.9 apt-get upgrade libstdc++6 Again, when I checked with strings /usr/lib/x86_64-linux-gnu/libstdc++.so.6 | grep GLIBCXX, the result was as follows. GLIBCXX_3.4 GLIBCXX_3.4.1 % GLIBCXX_3.4.26 GLIBCXX_3.4.27 GLIBCXX_3.4.28 GLIBCXX_DEBUG_MESSAGE_LENGTH However, I still get the same error when importing RDKit, although GLIBCXX_3.4.26 is installed. ImportError: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.26' not found Currently, I cannot use RDKit. I would be grateful if you could give me a hint as to how to solve it. Best regards, Kazu _______________________________________________ Rdkit-discuss mailing list Rdkit-discuss@lists.sourceforge.net<mailto:Rdkit-discuss@lists.sourceforge.net> https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Frdkit-discuss&data=04%7C01%7Cjhjensen%40chem.ku.dk%7C31194e36b7e442cd9fbf08d8a67ccfe3%7Ca3927f91cda14696af898c9f1ceffa91%7C0%7C0%7C637442402421271640%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=YWV1mJw69EOVdGXQ%2FvHQ87M863dKRrJxflWSSOMmaz0%3D&reserved=0
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