Hello,
Here are few things that you can check to troubleshoot this issue:
- If you are using MATLAB functions, the workspace within a function is different from the base workspace. Variables in the base workspace are not automatically available in functions. Use "evalin" or "assignin" to access variables from the base workspace within a function if necessary.
- If a variable is expected to be generated or modified by a block or function, ensure that this operation happens before you attempt to use it.
- If using Simulink, try updating the diagram (Ctrl+D or the Update Diagram option) to refresh the model state and see if the error persists.
- Additionally, make sure that all the relevant folders and subfolders have been added to the MATLAB path.
Hope it helps!