~/downloads/shakespeare-2.0.0.1 $ runhaskell Setup configure
Configuring shakespeare-2.0.0.1...
Warning: This package indirectly depends on multiple versions of the same
package. This is highly likely to cause a compile failure.
package system-filepath-0.4.10 requires text-1.0.0.1
package system-fileio-0.3.12 requires text-1.0.0.1
package scientific-0.2.0.2 requires text-1.0.0.1
package parsec-3.1.5 requires text-1.0.0.1
package hashable-1.2.1.0 requires text-1.0.0.1
package blaze-markup-0.6.0.0 requires text-1.0.0.1
package blaze-html-0.7.0.1 requires text-1.0.0.1
package blaze-builder-0.3.3.2 requires text-1.0.0.1
package attoparsec-0.11.2.1 requires text-1.0.0.1
package aeson-0.7.0.3 requires text-1.0.0.1
package shakespeare-2.0.0.1 requires text-1.1.0.1
~/downloads/shakespeare-2.0.0.1 $ runhaskell Setup build
Building shakespeare-2.0.0.1...
Preprocessing library shakespeare-2.0.0.1...
[ 1 of 16] Compiling Text.MkSizeType  ( Text/MkSizeType.hs, dist/build/Text/MkSizeType.o )
[ 2 of 16] Compiling Text.IndentToBrace ( Text/IndentToBrace.hs, dist/build/Text/IndentToBrace.o )
[ 3 of 16] Compiling Text.Shakespeare.Base ( Text/Shakespeare/Base.hs, dist/build/Text/Shakespeare/Base.o )
[ 4 of 16] Compiling Text.Hamlet.Parse ( Text/Hamlet/Parse.hs, dist/build/Text/Hamlet/Parse.o )
[ 5 of 16] Compiling Text.Hamlet      ( Text/Hamlet.hs, dist/build/Text/Hamlet.o )

Text/Hamlet.hs:99:35:
    Couldn't match expected type `text-1.0.0.1:Data.Text.Internal.Text'
                with actual type `Text'
    In the return type of a call of `pack'
    In the first argument of `preEscapedText', namely `(pack "=\"")'
    In the second argument of `mappend', namely
      `preEscapedText (pack "=\"")'

Text/Hamlet.hs:101:35:
    Couldn't match expected type `text-1.0.0.1:Data.Text.Internal.Text'
                with actual type `Text'
    In the return type of a call of `pack'
    In the first argument of `preEscapedText', namely `(pack "\"")'
    In the second argument of `mappend', namely
      `preEscapedText (pack "\"")'

Text/Hamlet.hs:256:30:
    Couldn't match type `Text'
                  with `text-1.0.0.1:Data.Text.Internal.Text'
    Expected type: String -> text-1.0.0.1:Data.Text.Internal.Text
      Actual type: String -> Text
    In the second argument of `(.)', namely `pack'
    In the Template Haskell quotation [| preEscapedText . pack |]
    In a stmt of a 'do' block: os <- [| preEscapedText . pack |]

Text/Hamlet.hs:577:30:
    No instance for (Text.Blaze.ToMarkup Text)
      arising from a use of `toHtml'
    Possible fix:
      add an instance declaration for (Text.Blaze.ToMarkup Text)
    In the expression: toHtml
    In the expression: toHtml $ render u []
    In a case alternative: Just (EUrl u) -> toHtml $ render u []
~/downloads/shakespeare-2.0.0.1 $