sh: 15: hash: Illegal option -t

[ljh433]

when i Patch Gromacs with Colvars (sh ./colvars-master/update-colvars-code.sh ./gromacs-2020.6)，there is an error：./colvars-master/update-colvars-code.sh: 15: hash: Illegal option -t. May I ask what the reason is. How to solve this problem？

[jhenin]

It looks like you are using an incompatible version of sh. Try calling the script with bash, or just execute the script without specifying the shell.

Then, please write a comment here to let us know if that solved the issue.

[giacomofiorin]

@ljh433 Were you able to try a different shell?