I run into the next problem with BizTalk Server 2009 Beta:
Delete of ApplicationNode failed.
I tried to manual remove the application, but somewhere it’s holding references to non existing resources. This exact message doesn’t give a hit in Google.
UPDATE: Thiago Almeida pointed me on a missing Dll in the GAC. After verifying this, this seems to be the case. After putting all Microsoft.Practices.ESB.Resolver* Dll’s back in the GAC (and a reboot) I was able to remove the application. In the first place I installed the ESB Guidance from the binaries. Later on I uninstalled the ESB, so I could install the ESB and the samples from source code. Probably with the uninstall the application was not removed from BizTalk and still referenced the ‘old’ Dll’s, or the problems occurred because of some manual actions by me after that. Who can tell?
This update is also a nice example what Twitter can mean to you 
Cheers!
