Mail About error in CV

From: Vidhya Sankar (vidhyasankar7928_at_yahoo.com)
Date: Mon Aug 02 2021 - 03:31:16 CDT

Dear Namd users
                     I am using rmsd as CV in namd
for that i have input fie  as follows

colvar {
   name          r1
 
   width                 1
 
   lowerboundary         70
   upperboundary         145
 
   lowerwallconstant     10.0
   upperwallconstant     10.0
 
#   scriptedFunction      source.tcl
 
   # extendedLagrangian    on
  # extendedFluctuation   0.01
 
   rmsd {
         atoms  { 1 2 3 4 5 }
        atomsFile  0.pdb
        atomsCol B
        atomsColValue 1.0
 #     }
     refpositionsfile    1000.pdb
     refpositiosCol B
     refPositionsColvValue  1.0
     componentExp        1
}
}

But When i run the simulation  I got error as follows

colvars: # scriptingAfterBiases = off [default]
colvars: ----------------------------------------------------------------------
colvars:   Initializing a new collective variable.
colvars:   # name = "r1"
colvars:   Initializing a new "rmsd" component.
colvars:     # name = "" [default]
colvars:     # componentCoeff = 1 [default]
colvars:     # componentExp = 1
colvars:     # period = 0 [default]
colvars:     # wrapAround = 0 [default]
colvars:     # forceNoPBC = off [default]
colvars:     # scalable = on [default]
colvars:       Initializing atom group "atoms".
colvars:       # name = "" [default]
colvars:       # centerReference = off [default]
colvars:       # rotateReference = off [default]
colvars:       # atomsOfGroup = "" [default]
colvars:       # indexGroup = "" [default]
colvars:       # psfSegID =  [default]
colvars:       # atomsFile = "" [default]
colvars:       # dummyAtom = ( 0 , 0 , 0 ) [default]
colvars: Error: no atoms defined for atom group "atoms".
FATAL ERROR: Error in the collective variables module: exiting.
 
------------- Processor 0 Exiting: Called CmiAbort ------------
Reason: FATAL ERROR: Error in the collective variables module: exiting.

It would be highly appreciable if any one point out and rectify the error for the past 10 days  to me it was tedious to solve the error  

With High regards
S.VIDHYA sankar

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