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Project upgrade error on Form - VS 2005 beta2

I am upgrading a VB.NET project in VS 2005 beta2. When I try and display the designer for a Form I get the message:

Unable to cast object of type 'System.Windows.Forms.Form' to type 'VbPowerPack.TaskFrame'

Where do I start looking for this error?

Thank you very much.

[301 byte] By [MisterT] at [2007-12-16]
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# 1
I also receive this erros, I think that the powerback isn't compatible, but the strange thing is that I can debug my app in 2005.
MS works in myterious ways Smile ?
Waitcursor at 2007-9-9 > top of Msdn Tech,Visual Basic,Visual Basic General...
# 2
I was getting the same error with VS2003 with the blend panel. I just upgraded to VS2005 and the VBpowerpack tools seem to be working OK. I have noticed one thing with VS2005 many of the new features don't appear to work when you do an upgrade. I was having a problem with sharing controls on other forms in my upgrade version . but if i rebuilt the same interface in VS2005 it worked fine. Same appears to be tru for vbPowerPack.
OCCcoach at 2007-9-9 > top of Msdn Tech,Visual Basic,Visual Basic General...
# 3
Did you ever figure it out. I get the same error. No luck so far.
TravisGaffney at 2007-9-9 > top of Msdn Tech,Visual Basic,Visual Basic General...
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