i have sent emails but thought i would followup here
I think I have found three bugs in V2 (4th preview)
1) MarkupExtensions
IServiceProvider has changed to Service Provier in the ProvideValue signatire - I believe V2 incorrect - it should be IServiceProdvider
2) Assembly.GetType in Reflection (I thinkSystem.Reflkection usually has a boolean second arg) thisis no longer allowed in the sifgnature
3) A time out when compiing - this I dont understand aty all - full log came with email
Thanks