a source file couldn't be opened

you have more than one connection open

you are not connected to a remote Mac

a Resolver error occurred

MacTCP couldn't be opened

document can't save the requested file type

an exception of unknown type was thrown

user canceled

name or other descriptor string > 255 characters 

attempted to store more than 32767 characters in a TextEdit item

there are too many pages too print

new_by_name was called for a unknown class