Fairseq installation error in ubuntu 20.04 python3.8

[praveencqr]

This is the error I get when I install the fairseq using the below command

pip install --editable ./

Running setup.py develop for fairseq
  error: subprocess-exited-with-error

  × python setup.py develop did not run successfully.
  │ exit code: 1
  ╰─> [20 lines of output]
      running develop
      running egg_info
      writing fairseq.egg-info/PKG-INFO
      writing dependency_links to fairseq.egg-info/dependency_links.txt
      writing entry points to fairseq.egg-info/entry_points.txt
      writing requirements to fairseq.egg-info/requires.txt
      writing top-level names to fairseq.egg-info/top_level.txt
      reading manifest file 'fairseq.egg-info/SOURCES.txt'
      adding license file 'LICENSE'
      running build_ext
      cythoning fairseq/data/data_utils_fast.pyx to fairseq/data/data_utils_fast.cpp
      cythoning fairseq/data/token_block_utils_fast.pyx to fairseq/data/token_block_utils_fast.cpp
      building 'fairseq.libbleu' extension
      x86_64-linux-gnu-gcc: fatal error: cannot execute ‘cc1plus’: execvp: No such file or directory
      compilation terminated.
      /tmp/pip-build-env-geo_ny44/overlay/lib/python3.8/site-packages/setuptools/command/easy_install.py:160: EasyInstallDeprecationWarning: easy_install command is deprecated. Use build and pip and rds-based tools.
        warnings.warn(
      /tmp/pip-build-env-geo_ny44/overlay/lib/python3.8/site-packages/setuptools/command/install.py:34: SetuptoolsDeprecationWarning: setup.py install is deprecated. Use build and pip and other standools.
        warnings.warn(
      error: command '/usr/bin/x86_64-linux-gnu-gcc' failed with exit code 1
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.
WARNING: No metadata found in /root/IndicTranslation/venv/lib/python3.8/site-packages
Rolling back uninstall of fairseq
Moving to /root/IndicTranslation/venv/bin/fairseq-eval-lm
 from /tmp/pip-uninstall-x78vx6r1/fairseq-eval-lm
Moving to /root/IndicTranslation/venv/bin/fairseq-generate
 from /tmp/pip-uninstall-x78vx6r1/fairseq-generate
Moving to /root/IndicTranslation/venv/bin/fairseq-interactive
 from /tmp/pip-uninstall-x78vx6r1/fairseq-interactive
Moving to /root/IndicTranslation/venv/bin/fairseq-preprocess
 from /tmp/pip-uninstall-x78vx6r1/fairseq-preprocess
Moving to /root/IndicTranslation/venv/bin/fairseq-score
 from /tmp/pip-uninstall-x78vx6r1/fairseq-score
Moving to /root/IndicTranslation/venv/bin/fairseq-train
 from /tmp/pip-uninstall-x78vx6r1/fairseq-train
Moving to /root/IndicTranslation/venv/bin/fairseq-validate
 from /tmp/pip-uninstall-x78vx6r1/fairseq-validate
Moving to /root/IndicTranslation/venv/lib/python3.8/site-packages/fairseq-0.10.2.dist-info/
 from /root/IndicTranslation/venv/lib/python3.8/site-packages/~airseq-0.10.2.dist-info
Moving to /root/IndicTranslation/venv/lib/python3.8/site-packages/fairseq/
 from /root/IndicTranslation/venv/lib/python3.8/site-packages/~airseq
Moving to /root/IndicTranslation/venv/lib/python3.8/site-packages/fairseq_cli/
 from /root/IndicTranslation/venv/lib/python3.8/site-packages/~airseq_cli
error: subprocess-exited-with-error

× python setup.py develop did not run successfully.
│ exit code: 1
╰─> [20 lines of output]
  running develop
  running egg_info
  writing fairseq.egg-info/PKG-INFO
  writing dependency_links to fairseq.egg-info/dependency_links.txt
  writing entry points to fairseq.egg-info/entry_points.txt
  writing requirements to fairseq.egg-info/requires.txt
  writing top-level names to fairseq.egg-info/top_level.txt
  reading manifest file 'fairseq.egg-info/SOURCES.txt'
  adding license file 'LICENSE'
  running build_ext
  cythoning fairseq/data/data_utils_fast.pyx to fairseq/data/data_utils_fast.cpp
  cythoning fairseq/data/token_block_utils_fast.pyx to fairseq/data/token_block_utils_fast.cpp
  building 'fairseq.libbleu' extension
  x86_64-linux-gnu-gcc: fatal error: cannot execute ‘cc1plus’: execvp: No such file or directory
  compilation terminated.
  /tmp/pip-build-env-geo_ny44/overlay/lib/python3.8/site-packages/setuptools/command/easy_install.py:160: EasyInstallDeprecationWarning: easy_install command is deprecated. Use build and pip and othebased tools.
    warnings.warn(
  /tmp/pip-build-env-geo_ny44/overlay/lib/python3.8/site-packages/setuptools/command/install.py:34: SetuptoolsDeprecationWarning: setup.py install is deprecated. Use build and pip and other standards.
    warnings.warn(
  error: command '/usr/bin/x86_64-linux-gnu-gcc' failed with exit code 1
  [end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
WARNING: You are using pip version 22.0.3; however, version 22.0.4 is available.
You should consider upgrading via the '/root/IndicTranslation/venv/bin/python -m pip install --upgrade pip' command.

[gowtham1997]

I am not reproduce this error on colab.

^ it installs successfully. Can you retry with latest main branch or check if they have similar issues in fairseq repo?