Calling stored procedure from embedded sql

Question

I'm trying to call a stored procedure from embedded sql. I'm following the examples located in
http://download.oracle.com/docs/cd/B19306_01/appdev.102/a96109/pco06pls.htm#i9641
I have the following section in my .pco file before precompiling.
exec sql execute
begin
docs.grant_access_to_all_categories(:p_sam_id);
end;
end-exec.
When running procob on the file with the above code I get the following error.
Error at line 225, column 13 in file pco\docs_stored_procedures.pco
exec sql execute
............1
PCB-S-00576, PLS-201: identifier 'DOCS.GRANT_ACCESS_TO_ALL_CATEGORIES' must be d
eclared
Error at line 225, column 13 in file pco\docs_stored_procedures.pco
exec sql execute
............1
PCB-S-00576, PLS-0: Statement ignored
Any ideas on what I am doing wrong on calling this stored procedure.

Answer 1

I get the same error when trying to precompile sample11.pco from the demo directory in the oracle client software.
Error at line 70, column 12 in file sample11.pco
EXEC SQL EXECUTE
...........1
PCB-S-00576, PLS-201: identifier 'EMP_DEMO_PKG.OPEN_CUR' must be declared
Error at line 70, column 12 in file sample11.pco
EXEC SQL EXECUTE
...........1
PCB-S-00576, PLS-0: Statement ignored