Drude equilibration

From: Almeida-Hernández, Yasser, Dr. (yasser.almeida-hernandez_at_uni-due.de)
Date: Mon Oct 05 2020 - 03:08:48 CDT

Dear all,

I am trying to equilibrate a solvated DNA system with Drude FF, prepared with CHARMM-GUI, using NAMD 2.14b2 (Linux). I get this error when I run:

$ namd2 +p4 step4_equilibration.inp

(...)

TCL: wrong # args: should be "set varName ?newValue?"
FATAL ERROR: wrong # args: should be "set varName ?newValue?"
    while executing
"set prot segid dnaa .or. segid dnab"
    (file "../step2_drude.str" line 14)
    invoked from within
"source ../step2_drude.str"
    (file "step4_equilibration.inp" line 78)
FATAL ERROR: wrong # args: should be "set varName ?newValue?"
    while executing
"set prot segid dnaa .or. segid dnab"
    (file "../step2_drude.str" line 14)
    invoked from within
"source ../step2_drude.str"
    (file "step4_equilibration.inp" line 78)
[Partition 0][Node 0] End of program

Attached is my input file and the step2_drude.str file. What am I missing? I am relatively new to NAMD.

Thanks in advance.

--
Dr. Yasser Almeida-Hernandez
Postdoctoral Researcher
Computational Biochemistry group
T01 R03 D45
Faculty of Biology
University of Duisburg-Essen
Universitätsstr. 2, 45117 Essen
Email: yasser.almeida-hernandez_at_uni-due.de<mailto:%20yasser.almeida-hernandez_at_uni-due.de>
Phone: +49 201 183 2457<tel:+49%20201%20183%202457>


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