Cannot create a connection to data source 'myservername'.

No matter how many times I redeploy my report and data sources from my
project to Report Manager, I keep getting this error when trying to run
the report from Reprt manager. It runs fine in VS 2005 though. I
don't know what else to do. I see no way to delete the report from
Report Manager in attempts to try to redeploy it from scratch either.
"An error has occurred during report processing.
Cannot create a connection to data source 'myservername'.
For more information about this error navigate to the report server on
the local server machine, or enable remote errors "In report manager on the datasource properties, credentials tab and set the
credentials to be used. Then when deploying do not overwirte the datasource
(this is the default behavior, to not overwrite the source).
Bruce Loehle-Conger
MVP SQL Server Reporting Services
"dba123" <d_schinkel@.hotmail.com> wrote in message
news:1141683199.061931.270510@.u72g2000cwu.googlegroups.com...
> No matter how many times I redeploy my report and data sources from my
> project to Report Manager, I keep getting this error when trying to run
> the report from Reprt manager. It runs fine in VS 2005 though. I
> don't know what else to do. I see no way to delete the report from
> Report Manager in attempts to try to redeploy it from scratch either.
>
> "An error has occurred during report processing.
> Cannot create a connection to data source 'myservername'.
> For more information about this error navigate to the report server on
> the local server machine, or enable remote errors "
>