# Fail to run a compiled julia app on another machine

**URL:** <https://discourse.julialang.org/t/fail-to-run-a-compiled-julia-app-on-another-machine/79391>\
**Category:** General Usage\
**Tags:** pycall, package-compiler\
**Created:** [April 12, 2022, 3:54pm UTC](https://discourse.julialang.org/t/fail-to-run-a-compiled-julia-app-on-another-machine/79391 "2022-04-12T15:54:56Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![efJerryYang](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/efjerryyang/32/215784_2.png) [@efJerryYang](https://discourse.julialang.org/u/efJerryYang)\
**Post date:** [April 12, 2022, 3:54pm UTC](https://discourse.julialang.org/t/fail-to-run-a-compiled-julia-app-on-another-machine/79391/1 "2022-04-12T15:54:56Z")

</div>

> Update: I think this problem may not be solved unless the absolute path used in `PyCall` was fixed

Hi, I am getting this error when I run a compiled Julia app on another win10 machine. I found an almost same problem issued 4 days ago [here](https://github.com/JuliaPy/PyCall.jl/issues/981). My system is win10, the error message is as follows.

```julia
fatal: error thrown and no exception handler available.
InitError(mod=:PyCall, error=ErrorException("could not load library "C:\Users\JerryYang\.julia\conda\3\python39.dll"
The specified module could not be found. "))
jl_errorf at /cygdrive/c/buildbot/worker/package_win64/build/src\rtutils.c:77
jl_load_dynamic_library at /cygdrive/c/buildbot/worker/package_win64/build/src\dlload.c:284
#dlopen#3 at .\libdl.jl:117
dlopen at .\libdl.jl:117 [inlined]
__init__ at C:\Users\JerryYang\.julia\packages\PyCall\7a7w0\src\pyinit.jl:149
jfptr ___init___ 34563.clone_1 at G:\DemoExecutable\lib\julia\sys.dll (unknown line)
jl_apply at /cygdrive/c/buildbot/worker/package_win64/build/src\julia.h:1788 [inlined]
jl_module_run_initializer at /cygdrive/c/buildbot/worker/package_win64/build/src\toplevel.c:73
_finish_julia_init at /cygdrive/c/buildbot/worker/package_win64/build/src\init.c:796
jl_init_with_image at /cygdrive/c/buildbot/worker/package_win64/build/src\jlapi.c:74 [inlined]
jl_init_with_image at /cygdrive/c/buildbot/worker/package_win64/build/src\jlapi.c:63 [inlined]
jl_init at /cygdrive/c/buildbot/worker/package_win64/build/src\jlapi.c:90
.text at G:\DemoExecutable\bin\Demo.exe (unknown line)
__tmainCRTStartup at G:\DemoExecutable\bin\Demo.exe (unknown line)
.l_start at G:\DemoExecutable\bin\Demo.exe (unknown line)
BaseThreadInitThunk at C:\Windows\System32\KERNEL32.DLL (unknown line)
RtlUserThreadStart at C:\Windows\SYSTEM32\ntdll.dll (unknown line)

```

It seems that this program is searching an absolute directory on my machine: `"C:\Users\JerryYang\.julia\conda\3\python39.dll"`. I thought for a build binary file, there should be no files to be needed under directory of machine where it was compiled, and the fixed absolute path seems really strange.

I guess this problem was caused by `PyCall`’s non-relocatability. Other packages don’t seem to have this problem. The compilation process went well, and there is no problem when it was running on my own machine.

```julia
D:\absolute\path>julia -q --project
julia> using PackageCompiler

julia> create_app("Demo","DemoExecutable")
PackageCompiler: bundled artifacts:
  ├── Bzip2_jll - 2.232 MiB
  ├── CRlibm_jll - 584.826 KiB
  ├── Cairo_jll - 13.579 MiB
  ├── EarCut_jll - 678.178 KiB
  ├── Expat_jll - 1.132 MiB
  ├── FFMPEG_jll - 27.893 MiB
  ├── Fontconfig_jll - 3.017 MiB
  ├── FreeType2_jll - 4.737 MiB
  ├── FriBidi_jll - 570.671 KiB
  ├── GLFW_jll - 711.095 KiB
  ├── GR_jll - 30.648 MiB
  ├── Gettext_jll - 19.930 MiB
  ├── Glib_jll - 20.546 MiB
  ├── Graphite2_jll - 696.780 KiB
  ├── HarfBuzz_jll - 6.257 MiB
  ├── Hwloc_jll - 9.260 MiB
  ├── JpegTurbo_jll - 4.951 MiB
  ├── LAME_jll - 1.398 MiB
  ├── LERC_jll - 758.367 KiB
  ├── LZO_jll - 1.084 MiB
  ├── Libffi_jll - 205.667 KiB
  ├── Libgcrypt_jll - 6.433 MiB
  ├── Libgpg_error_jll - 2.227 MiB
  ├── Libiconv_jll - 2.245 MiB
  ├── Libtiff_jll - 9.779 MiB
  ├── Ogg_jll - 693.400 KiB
  ├── OpenSSL_jll - 14.619 MiB
  ├── OpenSpecFun_jll - 798.680 KiB
  ├── Opus_jll - 3.208 MiB
  ├── PCRE_jll - 4.222 MiB
  ├── Pixman_jll - 5.945 MiB
  ├── Qt5Base_jll - 82.872 MiB
  ├── Rmath_jll - 453.627 KiB
  ├── Sundials_jll - 15.889 MiB
  ├── Wayland_protocols_jll - 465.663 KiB
  ├── XML2_jll - 7.444 MiB
  ├── XSLT_jll - 2.226 MiB
  ├── Zstd_jll - 3.936 MiB
  ├── libass_jll - 1.424 MiB
  ├── libfdk_aac_jll - 8.899 MiB
  ├── libpng_jll - 1.714 MiB
  ├── libvorbis_jll - 1.385 MiB
  ├── x264_jll - 5.880 MiB
  └── x265_jll - 12.785 MiB
  Total artifact file size: 346.257 MiB
✔ [02m:21s] PackageCompiler: compiling base system image (incremental=false)
Precompiling project...
  240 dependencies successfully precompiled in 747 seconds
✔ [05m:58s] PackageCompiler: compiling incremental system image

julia>

```

* * *

The code looks like this:

```julia
module Demo
function julia_main()::Cint
    len = length(ARGS)
    if len == 0
        println("An option is needed!")
        println("Type --help or -h to see available options.")
    else
        if ARGS[1] == "--help" || ARGS[1] == "-h"
            print("""Demo.exe <options>
             -h, --help Print something
             -1 Print something
             -2 Print something
            """)
        elseif ARGS[1] == "-1"
            println()
            include("file1.jl")
        elseif ARGS[1] == "-2"
            println()
            include("file2.jl")
        else
            println("Invalid option!")
        end
    end
    return 0
end
if abspath(PROGRAM_FILE) == @ __FILE__
    julia_main()
end
end # module

```

`file1.jl` and `file2.jl` are added in the directory of `Demo.exe`. I’m new to julia’s project structure and app compilation, using `include()` here may not be a good way of doing this (and I also want to know about the proper way of directly running another julia file like a script rather than `using` or `import`), but it can work on my machine.

---

<div class="post-metadata">

**Author:** ![ellocco](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ellocco/32/31331_2.png) [@ellocco](https://discourse.julialang.org/u/ellocco)\
**Post date:** [February 17, 2023, 12:42am UTC](https://discourse.julialang.org/t/fail-to-run-a-compiled-julia-app-on-another-machine/79391/2 "2023-02-17T00:42:54Z")

</div>

> [@efJerryYang](#):
>
> “C:\Users\JerryYang.julia\conda\3\python39.dll”

The issue is not yet resolved ☹