16:54:22 <SenSo> Hey, I have download the example application http://www.happstack.com/docs/crashcourse/src/AcidState/IxSet.hs but when I try to compile the code I get the following error:
16:54:33 <SenSo>     No instance for (Happstack.Server.Response.ToMessage Html)
16:54:34 <SenSo>       arising from a use of `toResponse'
16:54:56 <SenSo> :s/download/downloaded