[lammps-users] unknow fix style while package is installed already

Hello LAMMPS users, rigid/nvt single command is running fine in windows 30 july 2021.
But when I am using linux 7 Nov 2016 lammps version. I am using rigid/nvt single command but I got error"unknown fix style" .

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Later, checked rigid package is it install or not in src directory.
I typed in src folder “make ps” shows package is already installed.

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What should I do in this case?

Thanks,
Ankit

two comments:

  1. the fact that the sources have been copied does not automatically mean that the package is available in the executable. you also need to compile a new executable that includes the code from those added sources

  2. we do not recommend using a 5 year old version of LAMMPS. Applying a variety of automatic and semi-automatic testing and source code analysis methods over the last few years as well as the still ongoing refactoring for more internal consistency has resulted in a significantly improved and more reliable package with lots of fixed bugs and improved checking and error reporting.

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Thank you so much, Axel. I will check it out.

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