[ovs-dev] installation Error

[Kiani, Parham]

Hi all
previously,I installed Openvswitch successfully and work on it. today, I wanted to install it for another server from http://openvswitch.org/?page_id=35  // I am following the provided instruction Install.linux, after compiled finish and load kernel mod, I am going to run another step as usuall but I got all the time following error, i was wondering if somebody help me. many thanks.

Aug 19 11:10:25|00002|ovsdb_idl|WARN|syntax "{"details":"external_ids is not a valid column name","error":"syntax error","syntax":"[\"bootstrap_ca_cert\",\"ca_cert\",\"certificate\",\"external_ids\",\"private_key\"]"}": syntax error: <table-updates> includes unknown table "syntax"
ovs-vsctl: transaction error: {"details":"transaction causes \"Open_vSwitch\" table to contain 2 rows, greater than the schema-defined limit of 1 row(s)","error":"constraint violation"}