# Problem with "9 - Julia is fast.ipynb"
**URL:** https://discourse.julialang.org/t/problem-with-9-julia-is-fast-ipynb/115951
**Category:** New to Julia
**Tags:** error-message
**Created:** [June 20, 2024, 8:06pm UTC](https://discourse.julialang.org/t/problem-with-9-julia-is-fast-ipynb/115951 "2024-06-20T20:06:25Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@watchben](https://discourse.julialang.org/u/watchben)
#### Post date: [June 20, 2024, 8:06pm UTC](https://discourse.julialang.org/t/problem-with-9-julia-is-fast-ipynb/115951/1 "2024-06-20T20:06:25Z")
Hello dear community,
I downloaded the jupiter notebook file [9 Julia is fast.ipynb](https://github.com/JuliaAcademy/Introduction-to-Julia/blob/main/9%20-%20Julia%20is%20fast.ipynb) about benchmark from intro course ([here](https://juliaacademy.com/courses/375479/lectures/5863644)).
When I run the first cell about C language (where it’s supposed to allow writing C in julia env) into in visual studio code, I obtained the following error :
```julia
{
"name": "Base.IOError",
"message": "IOError: could not spawn `gcc -fPIC -O3 -msse3 -xc -shared -o 'C:\\Users\\Benjamin\\AppData\\Local\\Temp\\jl_yxklA7KvEp.dll' -`: no such file or directory (ENOENT)",
"stack": "IOError: could not spawn `gcc -fPIC -O3 -msse3 -xc -shared -o 'C:\\Users\\Benjamin\\AppData\\Local\\Temp\\jl_yxklA7KvEp.dll' -`: no such file or directory (ENOENT)
Stacktrace:
[1] _spawn_primitive(file::String, cmd::Cmd, stdio::Vector{Union{RawFD, Base.Libc.WindowsRawSocket, IO}})
@ Base .\\process.jl:128
[2] #784
@ .\\process.jl:139 [inlined]
[3] setup_stdios(f::Base.var\"#784#785\"{Cmd}, stdios::Vector{Union{RawFD, Base.Libc.WindowsRawSocket, IO}})
@ Base .\\process.jl:223
[4] _spawn
@ .\\process.jl:138 [inlined]
[5] open(cmds::Cmd, stdio::Base.DevNull; write::Bool, read::Bool)
@ Base .\\process.jl:397
[6] open
@ .\\process.jl:383 [inlined]
[7] open(cmds::Cmd, mode::String, stdio::Base.DevNull)
@ Base .\\process.jl:366
[8] open
@ .\\process.jl:361 [inlined]
[9] open(f::var\"#9#10\", cmds::Cmd, args::String; kwargs::@Kwargs{})
@ Base .\\process.jl:415
[10] open(f::Function, cmds::Cmd, args::String)
@ Base .\\process.jl:414
}
```
Does anyone has an idea where the problem comes from ?
Is my vs-code missing something ?
Thanks in advance !
watchben
---
### Author:  [@stevengj](https://discourse.julialang.org/u/stevengj)
#### Post date: [June 20, 2024, 8:11pm UTC](https://discourse.julialang.org/t/problem-with-9-julia-is-fast-ipynb/115951/2 "2024-06-20T20:11:58Z")
> [@watchben](#):
>
> `"IOError: could not spawn `gcc -fPIC -O3 -msse3 -xc -shared -o 'C:\\Users\\Benjamin\\AppData\\Local\\Temp\\jl_yxklA7KvEp.dll' -`: no such file or directory (ENOENT)"`
This error message tells you what is going on — that notebook compiles C code by launching `gcc` to compile it, which works well on Unix and Mac systems that have a compiler named `gcc` installed, but is failing for you on Windows because you probably don’t have that compiler.
You could install `gcc` or modify that code to launch some other C compiler you have (changing the command-line arguments accordingly).
---
### Author:  [@watchben](https://discourse.julialang.org/u/watchben)
#### Post date: [June 20, 2024, 8:44pm UTC](https://discourse.julialang.org/t/problem-with-9-julia-is-fast-ipynb/115951/3 "2024-06-20T20:44:47Z")
> [@stevengj](#):
>
> ailing for you on Windows because you probably don’t have that compiler
Okay, I will check on that, thank you for your help !
\*\* EDIT : problem solved ✅\*\*
I installed MinGW, following this vs-code [tutorial].([Get Started with C++ and MinGW-w64 in Visual Studio Code](https://code.visualstudio.com/docs/cpp/config-mingw))
Thank you again @stevengj for your guidance !
Have a nice day !