Django deployment error: pg_config executable not found.

I get the error below whenever I try to deploy my django project on either vercel or heroku

Error: pg_config executable not found.
pg_config is required to build psycopg2 from source.  Please add the directory
      containing pg_config to the $PATH or specify the full executable path with the
      option:
      
          python setup.py build_ext --pg-config /path/to/pg_config build ...
      
      or with the pg_config option in 'setup.cfg'.
      
      If you prefer to avoid building psycopg2 from source, please install the PyPI
      'psycopg2-binary' package instead.
      
      For further information please check the 'doc/src/install.rst' file (also at
      <https://www.psycopg.org/docs/install.html>).

Admin

2022-05-28

I had the same error when I was trying to deploy the django rest framework backend of devmaesters website. Following the steps below worked for me;

First uninstall psycopg2 completely from your project by running

pip uninstall psycopg2

Then install psycopg2 binary using

pip install psycopg2-binary

Then to update your requirements.txt file run

pip freeze > requirements.txt

Finally redeploy your project and everything should be working fine now.

Django deployment error: pg_config executable not found.

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