What does "command ms_get_version is unrecognized" mean and how I should deal with that?

[Phuc Nguyen]

Today I am dealing with a did_imputation from Kirill, 2021, and I found the error "command ms_get_version is unrecognized" after running the code

did_imputation Y i t ei,autosample fe( TYPE2 yr) controls($controllist) maxit(30000) tol(0.001)

Could you please point out what is the problem and what I should do to solve it?

[George Ford]

try

 
 ssc install ftools

and running it again.

[Jeff Wooldridge]

try

ssc install ftools

and running it again.

Thanks George. I was encountering the same problem and I'm happy someone on here knew the solution.