Unable to load swrast for Anaconda spyder

user_16415674 0
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I'm running Anaconda Spyder on Fedora 34.

When I run spyder I get the following error

No QCoreApplication instance found. Application patches not applied. You have to call load_stylesheet function after instantiation of QApplication to take effect. 
libGL error: MESA-LOADER: failed to open iris: /home/ted/anaconda3/lib/python3.8/site-packages/zmq/backend/cython/../../../../.././libstdc++.so.6: version `GLIBCXX_3.4.29' not found (required by /usr/lib64/dri/iris_dri.so) (search paths /usr/lib64/dri)
libGL error: failed to load driver: iris
libGL error: MESA-LOADER: failed to open swrast: /home/ted/anaconda3/lib/python3.8/site-packages/zmq/backend/cython/../../../../.././libstdc++.so.6: version `GLIBCXX_3.4.29' not found (required by /usr/lib64/dri/swrast_dri.so) (search paths /usr/lib64/dri)
libGL error: failed to load driver: swrast
libpng warning: bKGD: invalid
libpng warning: bKGD: invalid

I can see that libstdc++.so.6 is in /usr/lib64, but the search path is /usr/lib64/dri

How can I get iris and swrast to search /usr/lib64 for the driver? Creating a symlink didn't work.

anaconda spyder fedora
3 Answers

I have found the answer in this video at 14:50
https://www.youtube.com/watch?v=OqqZ3tqgJnA

You have simply to rename files

  • libstdc++.so
  • libstdc++.so.6
  • libstdc++.so.6.0.28

(or any that have libstdc++.so in it)

in home/anaconda3/lib

user_177916710
user_164667870

All the above answers are correct . Also remember if you are in different environment than the base environment. Then you will have to rename it in that envrionment. You will find those in env/(env_name)/lib

  • libstdc++.so -> libstdc++.so.old
  • libstdc++.so.6 -> libstdc++.so.6.old
  • libstdc++.so.6.0.28 -> libstdc++.so.0.28.old

Sometimes instead of libstdc++.so.6.0.28 it might be libstdc++.so.6.0.29 or any other number.

Refer this video https://youtu.be/OqqZ3tqgJnA?t=876

user_79671610
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