GROMACS version: 2021.4
GROMACS modification: No
I was trying Gromacs membrane protein tutorial.
I’ve reached Energy Minimization step.
But when I ran this code:
gmx grompp -f minim.mdp -c system_solv_ions.gro -p topol.top -o em.tpr
I got this error:
Fatal error: Cannot find position restraint file restraint.gro (option -r). From GROMACS-2018, you need to specify the position restraint coordinate files explicitly to avoid mistakes, although you can still use the same file as you specify for the -c option.
Also with this:
gmx grompp -f minim.mdp -r system_solv_ions.gro -p topol.top -o em.tpr
I got the error:
Error in user input: Invalid input values In option c Required option was not provided, and the default file 'conf' does not exist or is not accessible. The following extensions were tried to complete the file name: .gro, .g96, .pdb, .brk, .ent, .esp, .tpr
How can I resolve?