title: Getting ImportError /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version 'CXXABI_1.3.11' not found
body: <p>I'm currently trying to run a Python program that uses RDKit and am facing an error. The get straight to the point, the complete traceback is:</p>
  
  <pre><code>Traceback (most recent call last):
    File "./main.py", line 4, in &lt;module&gt;
      from train import Trainer
    File "/home/user1/repo1/train.py", line 12, in &lt;module&gt;
      from utils import make_batches
    File "/home/user1/repo1/utils.py", line 9, in &lt;module&gt;
      from rdkit import Chem, DataStructs
    File "/home/user1/anaconda3/envs/user1conda/lib/python3.7/site-packages/rdkit/Chem/__init__.py", line 18, in &lt;module&gt;
      from rdkit import DataStructs
    File "/home/user1/anaconda3/envs/user1conda/lib/python3.7/site-packages/rdkit/DataStructs/__init__.py", line 13, in &lt;module&gt;
      from rdkit.DataStructs import cDataStructs
  ImportError: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `CXXABI_1.3.11' not found (required by /home/user1/anaconda3/envs/user1/lib/python3.7/site-packages/rdkit/DataStructs/../../../../libRDKitDataStructs.so.1)
  </code></pre>
  
  <p>I've taken a look at <a href="https://github.com/tensorflow/tensorflow/issues/5017" rel="nofollow noreferrer">this Git Issue</a> and tried all the suggestions there, but none of them have worked. I also took a look at the following Stack Overflow questions as well: <a href="https://stackoverflow.com/questions/45235647/uwsgi-usr-lib-libstdc-so-6-version-cxxabi-1-3-8-not-found-required-by-u">uwsgi: /usr/lib/libstdc++.so.6: version `CXXABI_1.3.8' not found (required by /usr/lib/x86_64-linux-gnu/libicuuc.so.55</a> and <a href="https://stackoverflow.com/questions/20357033/usr-lib-x86-64-linux-gnu-libstdc-so-6-version-cxxabi-1-3-8-not-found">/usr/lib/x86_64-linux-gnu/libstdc++.so.6: version CXXABI_1.3.8' not found [closed]</a> but the answers have not been able to solve my problem either.</p>
  
  <p>For a bit more information:</p>
  
  <ol>
  <li>OS: Ubuntu 16.04</li>
  <li>Python version: 3.7.5</li>
  <li>Output of <code>echo $LD_LIBRARY_PATH</code> is currently nothing (I've tried to set this to what the answers have suggested).</li>
  <li>I'm currently using a Conda environment and also downloaded RDKit from Anaconda.</li>
  </ol>
  
  <p>Would anyone know what the potential problem may be? I'm a bit perplexed as nothing seems to be working and I don't know where to start diagnosing the problem. Thanks in advance.</p>