How to remove Migrated Repo BODS 4.2

Hi,

I migrated and upgraded Data Services from 4.1 to 4.2. Using reuse existing configuration. Copied Old DSCong.txt to New Server and point to old DSConfig.txt. When I check Server Configuration (svrcfg) in new server I see the Old Job Server and Repos. When I try to delete Old Job server or Repo I am getting below Error:

How do I delete the Old Job Server and Repos?? I want to add the New Job Server and Repo. Can I update DSConfig.txt ?Is it safe ??

Updating the repository <ds_qas@Q2__ds_qas>.  Please wait...

UNABLE to Update the repository <ds_qas@Q2__ds_qas>. Error: (14.2) 11-03-14 16:26:19 (R) (24636:1670825760) CON-120404: Initialization

                                                            OCI call <OCIServerAttach> for connection <Q2> failed: <ORA-12154: TNS:could not resolve the connect identifier specified>.

(14.2) 11-03-14 16:26:19 (E) (24636:1670825760) CON-120404: Initialization

                                                            OCI call <OCIServerAttach> for connection <Q2> failed: <*****>. This message contains some internal system details which

                                                            have been hidden for security. If you need to see the full contents of the original message, ask your administrator to assign

                                                            additional privileges to your account.

Thanks a bunch..