Active 3 years ago.

But when using -fobject-code, this results in an error: $ ghci -fobject-code Prelude> x = 3 Prelude> x :2:1: error: Variable not in scope: x. Viewed 5k times 2. Firstly, GHCi is a testing area, not a code-running area. Prelude> const 3 $! Haskell is a language that di ers greatly from the mainstream languages of today. Ask Question Asked 3 years ago. This is not a function code, it's function signature which can only be saved in a module along with function definition and the be loaded to GHCi. An emphasis on pure functions, a strong typing system, and a lack of loops and other conventional features make it harder to learn for programmers familiar only This feature should be better documented in the Wiki, but this is a start. Very strange. I'm a bit new to Haskell but I've been working this problem for a couple hours with no luck.

Perhaps you meant one of these: `$' (imported from Prelude), `!!' In this case, there was no main, so it failed. However, Haskell source files are meant to run a certain process, which is named main. 5 :0:9: Not in scope: `$!' When you run a source file, the Haskell compiler (usually GHC) looks for the IO action called main, and tries to run it.
'Variable not in scope" when using GHCi with `-fobject-code` Since b98ff3cc was landed (#7253 (closed)), you don't need let to define stuff in GHCi: $ ghci Prelude> x = 3 Prelude> x 3. This signature means that you're going to define a function lucky which gets an Integer and returns a String. Haskell error: Variable not in scope. Haskell local function Is not in scope Tag: function , haskell , where , local The following function is supposed to return the sum of all the polynomials in a list having a polynomial as a list of floats. Scoped type variables make it possible to specify the particular type of a function in situations where it is not otherwise possible, which can in turn help avoid problems with the Monomorphism restriction..

(imported from Prelude) The same happens when only compiled modules are loaded, but it's there when there's an interpreted module loaded. haskell - prelude - variable not in scope main Haskell Error-Naked Expression at Top Level (1) You cannot have an expression at the top-level.

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