Cause: In a CREATE PACKAGE statement, a
package (which is a database object that groups logically related PL/SQL
types, objects, and subprograms) was given the same name as an existing
database object.
Action: Give the package a unique
name.

Relared Errors:
PLS-00336:
non-object-table string illegal in this context
PLS-00337:
string matches too many object table aliases
PLS-00338:
unable to resolve string as a column or row
expression
PLS-00339:
string matches object-table without a REF or VALUE
modifier
PLS-00341:
declaration of cursor `string` is incomplete or
malformed
PLS-00351: Not
logged onto database `string`
PLS-00352:
Unable to access another database `string`
PLS-00353:
`string` must name a user in the database
PLS-00354:
username must be a simple identifier
PLS-00355: use
of pl/sql table not allowed in this context