Deploy Problem From Within Visual Studio

Yesterday I was trying to deploy a BizTalk solution from within Visual Studio and I saw all kinds of strange errors. I started trimming down the app, deleting schemas, pipelines, and I still saw errors. Then I deleted the entire application in the BizTalk Console, and when I tried to deploy I saw this error in Visual Studio:

Error 25 Failed to add resource(s). Change requests failed for some
resources. BizTalkAssemblyResourceManager failed to complete end type change
request. Failed to update binding information. Party 'PartyName' enlisted
under role
'ResaleReportReceiver(MyCompany.B2B.ResaleReport.Process.SendResaleReportRoleLink_Type)'
has not bound all the operations of role link port types.

The last thing I tried was to go through each project and to set Redeploy= false, and then delete the project. That worked.

I was trying to get a send port working in a BizTalk app the other day, but it kept failing with the following message:

Event Type: Error
Event Source: BizTalk Server 2006
Event Category: BizTalk Server 2006
Event ID: 5754
Date: 2/5/2008
Time: 6:06:56 PM
User: N/A
Computer: ACME31
Description:
A message sent to adapter "FILE" on send port "ACME.B2B.ResaleReport.Port.Snd.Http.OneWay.Test.eBI.Steve" with URI "C:\Dev\ACME.B2B.ResaleReport\OneWayPorts\DB2\%MessageID%.xml" is suspended.
Error details: The system cannot find the file specified. (Exception from HRESULT: 0x80070002)
MessageId: {4E99E4FF-5E09-441E-8AB2-2A83FB49B3A6}
InstanceID: {0BFBB93E-3352-4354-A1C7-A153FE90A42C}

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

When I removed the map from the send port, I was able to get a message out with no errors.

I was stumped until I tried to run the map inside of Visual Studio, and then I saw this message:
Invoking component...
C:\Dev\ACME.B2B.ResaleReport\ACME.B2B.ResaleReport.Transforms.Premier\ResaleReport_To_EDI867.btm: error btm1067: The external assembly with the fully qualified name "ACME.B2B.ResaleReport.Utilities, Version=1.1.0.0, Culture=neutral, PublicKeyToken=ffee3e80c6a877dd" cannot be invoked. Make sure this assembly is in GAC.
Test Map used the following file: as input to the map.
Test Map success for map file C:\Dev\ACME.B2B.ResaleReport\ACME.B2B.ResaleReport.Transforms.Premier\ResaleReport_To_EDI867.btm. The output is stored in the following file:
Component invocation succeeded.

From this, it was easy to see that there were some custom functoids in the map that were not deployed to the GAC. I deployed the DLL containing the functoids, and the error was fixed.