Gromacs Error – log: Protocol “https” not supported or disabled in libcurl

Downloading: https://ftp.gromacs.org/regressiontests/regressiontests-2020.6.tar.gz
CMake Error at tests/CMakeLists.txt:58 (message):
  error: downloading
  'https://ftp.gromacs.org/regressiontests/regressiontests-2020.6.tar.gz'
  failed

  status_code: 1

  status_string: "Unsupported protocol"

  log: Protocol "https" not supported or disabled in libcurl

  Closing connection -1

If you compiling Gromacs-2020.6 with Plumed2-2.7.2, do follow the Regression Test Errors during Gromacs Compilation. The Key issues are

DREGRESSIONTEST_DOWNLOAD=OFF -DREGRESSIONTEST_PATH=../regressiontests-2020.2

If you can download the regressiontests-2020.6.tar.gz and get the regressiontest PATH correct, it should work without issues.

Gaussian Error – $’\r’: command not found

If you see errors like

/var/spool/pbs/mom_priv/jobs/729107.hpc-mn1.SC: line 2: $'\r': command not found
/var/spool/pbs/mom_priv/jobs/729107.hpc-mn1.SC: line 5: $'\r': command not found
/var/spool/pbs/mom_priv/jobs/729107.hpc-mn1.SC: line 8: $'\r': command not found
/var/spool/pbs/mom_priv/jobs/729107.hpc-mn1.SC: line 11: $'\r': command not found
/var/spool/pbs/mom_priv/jobs/729107.hpc-mn1.SC: line 16: $'\r': command not found
/var/spool/pbs/mom_priv/jobs/729107.hpc-mn1.SC: line 19: $'\r': command not found
/var/spool/pbs/mom_priv/jobs/729107.hpc-mn1.SC: line 22: $'\r': command not found

These errors are usually due to Windows-style newline characters that can cause issues. Please use the commands

$ dos2unix yourfile

This will remove the Windows-style newline characters