Hey everyone,
I changed my code I now I get the following error message
Main: thread blocked indefinitely in an MVar operation
Before the change, I was using the State monad with runState.
Then, I changed the code to use the StateT monad transformer wrapped
around IO monad and runStateT.
And this change introduced the error message.
BTW I am using DoRec extension, maybe it is the source of the problem,
but I don't know.
Here are some specs:
ghc 7.4.2
mtl 2.1.1
If you need any other information please don't hesitate to ask.
Any help is greatly appreciated!
Cheers,
José
--
José António Branquinho de Oliveira Lopes
Instituto Superior Técnico
Technical University of Lisbon
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