Incorrect argument error for pair coefficients

LAMMPS LAMMPS Beginners
1

I need to model titanium for a lammps simulation. But the used potential file is causing error.Following is written in the input script,

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image720×366 7.05 KB

and this is the error i get,

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image1170×484 159 KB

I opened the cpp file indicated in the error (line 52)
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the first two args are * and then the potential file, same as in the input script

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this is the file structure

The paper from which I am modeling, adopted a manybody potential
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I downloaded the following file
https://www.ctcms.nist.gov/potentials/Download/1992--Ackland-G-J--Ti/3/Ti_v2.eam.fs
This is written in lammps format.

If someone could point out the source of error I would really appreciate it.
TIA

2

As you say, the error comes from line 52, not 57. So the error has nothing to do with the stars (* *), but the number of arguments. You need to read the documentation more carefully.

3

Isn’t there 3 arguments. First 2 are * and third one is the name of file?

4

If that was the case, LAMMPS would not throw an error, but it does, right?
So check the documentation for the eam/fs pair style again.