[Haskell-cafe] Convert IO Int to Int

[ptrash]

Hi, 

I have tried on the console to write

x <- randomRIO(1,10)
:t x

Everythings fine and the type of x is
x :: Integer

Now I have tried to write a Method which gives me a Number of random numbers
the same way but it doesn't work.

randomList :: Int -> [Integer]
randomList 0 = []
randomList n = do
                             r <- randomRIO (1, 10)
                             r:randomList(n-1)

It says   Couldn't match expected type `IO t' against inferred type `[t]'
r <- randomRIO (1,10) causes an error. But why does it work on the console?
Is there a way to solve it another way?
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