Digital Mark λ 📚 🕹 💾 🥃 on Nostr: So now I'm trying to figure out how to get my common library to be a package in CL, ...

So now I'm trying to figure out how to get my common library to be a package in CL, and then import it. And all I get from lisp is:
debugger invoked on a NAME-CONFLICT in thread
USE-PACKAGE (MARKLIB:SYM->STR) causes name-conflicts in
#<PACKAGE "COMMON-LISP-USER"> between the following symbols:
COMMON-LISP-USER::SYM->STR, MARKLIB:SYM->STR

Practical Common Lisp just tells me to pick a restart in debugger. DOESN'T HELP when I'm importing a library!
#lisp