Error calling login method of LoginWindows PSI

[Kannan]

I installed project server 2007 in my VPC. i used a local account. this
account is the admin in the VPC. This account is also an admin of the created
PWA, SSP. All the application pools run under this account. This account is
able to browse through the PWA and the web services through IE. TThe
following is what i did

1. Created a sample windows application in VS 2008
2. Added a web reference to the LoginWindows web services.
3. I use the following code piece to call the login method

LoginWindows.LoginWindows loginService = new LoginWindows.LoginWindows();
loginService.Credentials = CredentialCache.DefaultCredentials
bool chkLogin = loginService.Login()

When the above piece of code is executed, i get the following error logged
in the event log

PSI Auth: SiteId ca885ad8-c0dc-4184-9027-980ed84c7c86 was not found in the
ProjectSiteCollection for this SSP

I am completely stuck up with this error. Please help

 

[Gary Chefetz]

Kannan:

You should ask your developer questions in the developer group as you're
more likely to get an answer there.