Dear sir, I am encountering these errors -bash-2.05b$ createuser -U postgres -d -A -P dspace Enter password for new role: Enter it again: Shall the new role be allowed to create more new roles? (y/n) n createuser: relocation error: /usr/lib/libpq.so.4: undefined symbol: krb5_cc_get_principal -bash-2.05b$ createuser -U postgres -d -A -P dspace Enter password for new role: Enter it again: Shall the new role be allowed to create more new roles? (y/n) y createuser: relocation error: /usr/lib/libpq.so.4: undefined symbol: krb5_cc_get_principal -bash-2.05b$ createdb -U dspace -E UNICODE dspace createdb: relocation error: /usr/lib/libpq.so.4: undefined symbol: krb5_cc_get_principal -bash-2.05b$ I am using Redhat 3 enterprise linux.. installed Pgresql ver. [root@localhost root]# rpm -qa |grep sql postgresql-server-8.1.4-1PGDG postgresql-jdbc-8.1.4-1PGDG postgresql-8.1.4-1PGDG postgresql-contrib-8.1.4-1PGDG postgresql-docs-8.1.4-1PGDG postgresql-python-8.1.4-1PGDG postgresql-test-8.1.4-1PGDG postgresql-libs-8.1.4-1PGDG postgresql-devel-8.1.4-1PGDG postgresql-pl-8.1.4-1PGDG [root@localhost root]# Kindly give me the solution as soon as possible __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com