# Cant use module normally
**URL:** https://discourse.julialang.org/t/cant-use-module-normally/117973
**Category:** General Usage
**Tags:** module, using
**Created:** [August 8, 2024, 8:24pm UTC](https://discourse.julialang.org/t/cant-use-module-normally/117973 "2024-08-08T20:24:36Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@martin\_sanchez](https://discourse.julialang.org/u/martin_sanchez)
#### Post date: [August 8, 2024, 8:24pm UTC](https://discourse.julialang.org/t/cant-use-module-normally/117973/1 "2024-08-08T20:24:36Z")
In [This tutorial](https://www.educative.io/answers/how-to-import-a-custom-module-in-julia) they even have an online code executer in which they set the example of using a module. They first have a file mymodule.jl in which they write:
`module MyModule
export sum\_function, resta
function sum\_function(a, b)
return a + b
end
function resta(a,b)
a-b
end
end # end of module definition`
And a main.jl file in which they write:
```julia
include("mymodule.jl")
using MyModule
result = resta(2, 3)
print(result)
```
When I try to mimic this same structure in my files, I have a file called cont\_stoch\_proc.jl in which I have a toy example:
```julia
module ContStochProc
export f
function f(x, y,z...)
value=x*y
for i in z
value+=i
end
return value
end
end # module ContStochProc
```
And a file called prueba.jl in which I have:
```julia
include("cont_stoch_proc.jl")
using ContStochProc
f(2,3,1,1,1,1,1)
```
But when I run it, it shows me an error, signaling I do not have that module in my path
```julia
ERROR: ArgumentError: Package ContStochProc not found in current path, maybe you meant `import/using .ContStochProc`.
```
First question would be why does it work on the web but not in my project? I also realized that it works only if I write
```julia
using Main.ContStochProc
```
So why only in my project I need to use the “Main.” module path to run it? (this also happens if I try to use import ContStochProc.f as is used in the example
---
### Author:  [@Satvik](https://discourse.julialang.org/u/Satvik)
#### Post date: [August 8, 2024, 8:37pm UTC](https://discourse.julialang.org/t/cant-use-module-normally/117973/2 "2024-08-08T20:37:53Z")
The tutorial is wrong, I’m not sure if it’s just using an older version of Julia. To use a locally defined module you would generally use `using .ContStochProc`. Per the [manual](https://docs.julialang.org/en/v1/manual/modules/#Standalone-using-and-import): “To load a module from a package, the statement `using ModuleName` can be used. To load a module from a locally defined module, a dot needs to be added before the module name like `using .ModuleName`.”
---
### Author:  [@\_bernhard](https://discourse.julialang.org/u/_bernhard)
#### Post date: [August 8, 2024, 8:40pm UTC](https://discourse.julialang.org/t/cant-use-module-normally/117973/3 "2024-08-08T20:40:02Z")
I just want to add, that the error hint already tells you the right answer. 😃
> [@martin\_sanchez](#):
>
> ```julia
> ERROR: ArgumentError: Package ContStochProc not found in current path, maybe you meant `import/using .ContStochProc`.
>
> ```
---
### Author:  [@martin\_sanchez](https://discourse.julialang.org/u/martin_sanchez)
#### Post date: [August 8, 2024, 9:44pm UTC](https://discourse.julialang.org/t/cant-use-module-normally/117973/4 "2024-08-08T21:44:54Z")
Thank you. I also found that after making the question but knowing the tutorial is not the way it should work really helps.
---
### Author:  [@Benny](https://discourse.julialang.org/u/Benny)
#### Post date: [August 9, 2024, 12:55am UTC](https://discourse.julialang.org/t/cant-use-module-normally/117973/5 "2024-08-09T00:55:43Z")
> [@Satvik](#):
>
> The tutorial is wrong
The author’s other writings seem to be generated text due to a particular redundant format and self-contradicting mistakes so close that a human wouldn’t make them, e.g. `13 print(x is y) # Output: True` followed by the “Explanation” list saying “Line 13: We again check if `x` and `y` refer to the same object in memory. Since both variables now contain the value `300`, which is out of the range `-5` to `256`, the output will be `False`.” The languages and topics are also all over the place, really casting doubt on any human making a tutorial with any purpose.
There’s lots of junk on the internet now, it’s tough for people trying to find tutorials organized to be more accessible than the Manual.