# LoadError: ArgumentError

**URL:** <https://discourse.julialang.org/t/loaderror-argumenterror/95531>\
**Category:** New to Julia\
**Created:** [March 4, 2023, 7:12am UTC](https://discourse.julialang.org/t/loaderror-argumenterror/95531 "2023-03-04T07:12:36Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![nero](https://avatars.discourse-cdn.com/v4/letter/n/9d8465/32.png) [@nero](https://discourse.julialang.org/u/nero)\
**Post date:** [March 4, 2023, 7:12am UTC](https://discourse.julialang.org/t/loaderror-argumenterror/95531/1 "2023-03-04T07:12:36Z")

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Greetings  
I have this command line in a code that works file in linux

Function = Function\_F2(“./Folder/File1.csv”,“./Folder/File2.csv”)  
But when I run it in windows I get the following error;  
ERROR: LoadError: ArgumentError: “./Folder/File2.csv” is not a valid file or doesn’t exist

Could you please advise on how to correct the argument to suit windows run?

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<div class="post-metadata">

**Author:** ![tamasgal](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/tamasgal/32/27946_2.png) [@tamasgal](https://discourse.julialang.org/u/tamasgal)\
**Post date:** [March 4, 2023, 7:29am UTC](https://discourse.julialang.org/t/loaderror-argumenterror/95531/2 "2023-03-04T07:29:04Z")

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Greetings nero. You make it really hard to help you 😉 Can you please read carefully the following post first? [Please read: make it easier to help you](https://discourse.julialang.org/t/please-read-make-it-easier-to-help-you/14757)

It is a very well written and short text which will helps you to communicate in technical forums much more easily in future.

Now to your problem: I can’t tell much because you did not show what `Function_F2` is. The error tells you that it has difficulties with the `"./Folder/File2.csv"` parameter you pass to `Function_F2`, namely `"... is not a valid file or doesn't exist"`. Presumable, the file is not where it should be, but as said, it’s hard to tell.

Please provide a minimal working example to reproduce your error and also tell us about what you are trying to, just like it’s described in the post above.

For now, I cannot reproduce your problem. I get:

```julia
julia> Function = Function_F2(“./Folder/File1.csv”,“./Folder/File2.csv”)
ERROR: syntax: invalid character "“" near column 24
Stacktrace:
 [1] top-level scope
   @ none:1

```

which comes from the fact that your copy&paste-mechanics turned the double-quotes into “fancy double quotes”, which Julia does not understand. If I fix that, I still get the obvious `"not defined"` error, since I don’t have access to your `Function_F2` definition. Neither do I know what `File2.csv` or `File2.csv` look like.

```julia
julia> Function = Function_F2("./Folder/File1.csv", "./Folder/File2.csv")
ERROR: UndefVarError: Function_F2 not defined
Stacktrace:
 [1] top-level scope
   @ REPL[3]:1

```

I hope you understand 😉