11:51:29 <HugoDaniel> hi
11:51:56 <HugoDaniel> im getting a "too few bytes from demandInput" in a safecopy datatype that is being derived
11:52:32 <HugoDaniel> it works if i manually specify an instance to it that just does a simple "show a" and "read a"
11:52:59 <HugoDaniel> how is this possible ?
16:47:55 <aleksejs_> Hi!
16:49:21 <aleksejs_> Could anyone explain me how to make this work? http://vpaste.net/ZipRL
18:45:39 <stepcut> HugoDaniel: usually you would only see that error if you changed your data type and were restoring from saved state and didn't provide a migration..
18:52:40 <HugoDaniel> i got it fixed, i had a wrong get in a newtype that never got tested in some module i was importing from a previous project
18:52:43 <HugoDaniel> :)
19:06:31 <stepcut> ah
19:35:52 <stepkut> aleksejs_: with out using data.lens, http://lpaste.net/100457
19:37:29 <aleksejs_> Thanks!
19:38:30 <aleksejs_> by the way, http://hackage.haskell.org/package/happstack-clientsession-7.2.6/docs/Happstack-Server-ClientSession.html maybe I did something wrong, but it cannot import Data.Lens
19:41:35 <stepcut> aleksejs_: did you install data-lens-fd ?
19:41:59 <aleksejs_> no, only data-lens :(
19:43:02 <stepkut> you also need data-lens-fd and data-lens-template
19:43:02 <stepkut> would probably be nice if donri switched to lens
19:43:49 <stepkut> if you install all three data-lens libs, then you should be able to use this version, http://lpaste.net/100458
19:51:25 <aleksejs_> I'll play with both versions. I'm not familiar with lenses yet