It will only fail if the NetLogo versions are considered incompatible (and thus require auto-conversion). We can't autoconvert child models as that would be silently changing peoples models in the background (even if we don't save the file, auto-conversion is not perfect and we could end up silently modifying model behavior, which is bad bad bad).
I'm clarifying the error message, including a suggestion for how to fix.
This is fine, but the error needs to be clearer.
It will only fail if the NetLogo versions are considered incompatible (and thus require auto-conversion). We can't autoconvert child models as that would be silently changing peoples models in the background (even if we don't save the file, auto-conversion is not perfect and we could end up silently modifying model behavior, which is bad bad bad).
I'm clarifying the error message, including a suggestion for how to fix.