Looking for some help with the comport object, it has suddenly stopped working.

When I try to create the object I get the error:

comport
... couldn't create
comport: can't load abstraction within itself

I have updated PD, deleted comport within the externals, then reinstalled it using help>find externals within PD and still get the same error - any ideas? I have also tried using "declare" to no effect.

When I open the "comport-help.pd", "comport-meta.pd" and "comport-stress-test" within the externals>comport folder all comport objects are greyed out... Trying to get PD to talk with Arduino... Thanks!