I recently updated to the latest Propellor and now I'm getting an error building on a remote host:

    [86 of 94] Compiling Propellor.Bootstrap ( src/Propellor/Bootstrap.hs, dist/build/propellor-config/propellor-config-tmp/Propellor/Bootstrap.o )
    
        src/Propellor/Bootstrap.hs:237:22:
        No instance for (Typeable Bootstrapper)
          arising from a use of `fromInfo'
        Possible fix:
          add an instance declaration for (Typeable Bootstrapper)
        In the expression: fromInfo (maybe mempty hostInfo mh)
        In a stmt of a 'do' block:
          case fromInfo (maybe mempty hostInfo mh) of {
            NoInfoVal
              -> do { bs <- getGitConfigValue "propellor.buildsystem";
                      case bs of {
                        Just "stack" -> ...
                        _ -> ... } }
            InfoVal bs
              -> case getBuilder bs of {
                   Cabal -> cabalBuild msys
                   Stack -> stackBuild msys } }
        In the second argument of `($)', namely
          `do { case fromInfo (maybe mempty hostInfo mh) of {
                  NoInfoVal -> do { ... }
                  InfoVal bs
                    -> case getBuilder bs of {
                         Cabal -> ...
                         Stack -> ... } } }'
    propellor: cabal build failed

I guess I'm missing something, but not sure what?
