I am getting the error 'Unrecognized function or variable 'ctfroot' when I try to invoke MATAB runtime R2019b

I am trying to invoke MATLAB Runtime R2019b through custom tool and I am hetting the error as shown below. It was working fine previously and suddenly it got stopped.

[MarKf]

if it was working previously and now stopped, likely a change in paths could have caused this (also because path management is usually an issue). Being careful in recreating the same environment with the same paths, packages, and versions would likely solve the issue.

In case, use which ctfroot to check whether the function is in your path. Look up where it is otherwise and addpath the directory in which it is contained. That may not be the right way if it is part of private functions of a toolbox, but usually it'd work.

Answer 1

[Kakarla Sasi]

The issue got resolved when I followed the steps mentioned in the below answer.

Why am I not able to execute my standalone application on only certain end user machines? - MATLAB Answers - MATLAB Central

Answer 2

[Nihal Reddy]

I understand you are getting "Unrecognized function or variable 'ctfroot'" error while invoking MATLAB Runtime.

Please refer to the following MATLAB Answer which talks about-

Why do I get the error "Unrecognized function or variable"? - MATLAB Answers - MATLAB Central (mathworks.com)

In addition to this you can refer to the following MATLAB Answer which specifically talks about the error you are facing currently-

Why do I get the error "Unrecognized function or variable 'ctfroot'" when running "MATLABWebAppServer... - MATLAB Answers - MATLAB Central (mathworks.com)