Yes, as you stated, not an HP problem. I did a cabal update and got past this problem. I still can't install threadscope but I don't believe this is an HP platform problem so I'll follow up with the threadscope people and won't post again to this group

Thanks

[10 of 35] Compiling GUI.ProgressView ( GUI/ProgressView.hs, dist/build/threadscope/threadscope-tmp/GUI/ProgressView.o )

GUI/ProgressView.hs:92:15:

    Could not deduce (System.Glib.UTFString.GlibString string0)

      arising from a use of ‘labelNew’

    from the context (WindowClass win)

      bound by the type signature for

                 new :: WindowClass win => win -> IO () -> IO ProgressView

      at GUI/ProgressView.hs:79:8-57

    The type variable ‘string0’ is ambiguous

    Note: there are several potential instances:

      instance System.Glib.UTFString.GlibString

                 text-1.1.0.0:Data.Text.Internal.Text

        -- Defined in ‘System.Glib.UTFString’

      instance System.Glib.UTFString.GlibString [Char]

        -- Defined in ‘System.Glib.UTFString’

    In a stmt of a 'do' block: progText <- labelNew Nothing

    In the expression:

      do { win <- windowNew;

           set win [containerBorderWidth := 10, windowTitle := "", ....];

           progText <- labelNew Nothing;

           set progText [miscXalign := 0, labelUseMarkup := True];

           .... }

    In an equation for ‘new’:

        new parent cancelAction

          = do { win <- windowNew;

                 set win [containerBorderWidth := 10, ....];

                 progText <- labelNew Nothing;

                 .... }

cabal: Error: some packages failed to install:

threadscope-0.2.4 failed during the building phase. The exception was:

ExitFailure 1