Hi Jake,
The error happens when some of the signals in the referenced model have the built-in "Struct" storage classes. Embedded coder does not support struct storage class with "Exported" data scope in the referenced models. This a documented limitation:
The limitation mentioned is:
If you apply a grouped storage class, such as "Struct" or "Bitfield", to multiple data items, you must set the storage class Data scope property to "Imported" and you must provide the data declaration in an external header file. Grouped storage classes use a single variable in the generated code to represent multiple data objects.
As the scope of the built-in struct storage class is "Exported", the limitation is violated, and the error is shown.
A potential workaround is to use the "Custom Storage Class Designer" to define a struct storage class with imported scope and then import the struct definition using a custom header file. Here is an example where I have defined a new storage class with imported scope and provided the name of a custom header file that includes the definition of the struct:
Please refer the following documentation on information about "Custom Storage Class Designer" :
