Android Question CallSub to Resumable Sub - Current delaration does not match previous one, result

[RJB]

With this code in a service:

Sub Test1String As ResumableSub
 Return "String"
End Sub
Sub Test2Boolean As ResumableSub
 Return True
End Sub

This code in Main:

 Wait For(CallSub(TestService, "Test1String")) Complete (result As String)
Wait For(CallSub(TestService, "Test2Boolean")) Complete (result As Boolean)

gives:
"Current delaration does not match previous one.
result"
on the second line.

Using:

 Dim rs1 As ResumableSub = CallSub(TestService, "Test1String")
 Wait For (rs1) Complete (result As String)
 Dim rs2 As ResumableSub = CallSub(TestService, "Test2Boolean")
 Wait For (rs2) Complete (result As Boolean)

gives the same result

Any suggestions as to why, and how to correct it?

 

[Erel]

What is the type of 'result' after these two lines?

Wait For(CallSub(TestService, "Test1String")) Complete (result1 As String)
Wait For(CallSub(TestService, "Test2Boolean")) Complete (result2 As Boolean)

 

[RJB]

What is the type of 'result' after these two lines?

Wait For(CallSub(TestService, "Test1String")) Complete (result1 As String)
Wait For(CallSub(TestService, "Test2Boolean")) Complete (result2 As Boolean)

I'm not sure that I understand the question but that does solve the problem - and the reason is obvious when you see it. Thanks