Some user(s) may receive the below error messages when debugging a valid package while others can debug the package without any errors.
ORA-06550: line 2, column 7:
PLS-00302: component 'package name' must be declared
ORA-06550: line 2, column 3:
PL/SQL: Statement ignored.
WORKAROUND
Remove the Schema name from schema.package.packagebody in Set Parameter window and then Execute package.
STATUS
Waiting for fix in a future release of Toad.