I followed the gromacs tutorial precisely and in the equilibration step I am facing this error. I tried "tc-grps = System" but occurs the same error.
The error appears because you have mentioned two ref-t values and two tau-t values while the tc-grps only contains "System".
Please assign one value for ref-t and tau-t.
The error message "Fatal error: Invalid T coupling input: 1 groups, 2 ref-t values and 2 tau-t values" typically occurs when there is a mismatch between the number of temperature coupling groups defined in the simulation input file and the corresponding reference temperature (ref-t) and temperature relaxation time (tau-t) values provided.
To resolve this error, you need to ensure that the number of temperature coupling groups matches the number of reference temperature and temperature relaxation time values specified in your simulation input file. Here are a few steps you can take to troubleshoot and correct this issue:
Thank you very much, Jamoliddin Razzokov! Your answer helped a lot, I managed to solve the error.
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