How can we resolve the error caused by - Dictionary entry value class 'DATA.Signal' is undefined ?

When I am trying to open a Data Dictionary File ( .sldd) of a Component Model in 2019b, I am getting the following error :

Failed to open file 'C:\Users\xxx\xxxxx\xxxxx.sldd'

Caused by:

• Dictionary entry value class 'DATA.Signal' is undefined.

Component:Simulink | Category:Model error

Is the error in '**.sldd' file ? How can I fix this error ?

[杰]

I have the same question,do you solve it?

[Jes Vestervang Jensen]

I have the same problem as well.

Answer 1

[Fangjun Jiang]

It seems like DATA.Signal is a customized class, for example, built on top of the Simulink.Signal class. Or, it could be a class provided by a toolbox.

In any case, there are some files installed in the MATLAB path to define the class. You need to trace back to the source/owner of the .sldd file and ask about those files.