# Pumas installation error

**URL:** <https://discourse.pumas.ai/t/pumas-installation-error/1267>\
**Category:** Installation\
**Created:** [September 2, 2025, 12:50pm UTC](https://discourse.pumas.ai/t/pumas-installation-error/1267 "2025-09-02T12:50:28Z")\
**Posts on this page:** 18\
**Page:** 1

<div class="post-metadata">

**Author:** ![sakshi](https://avatars.discourse-cdn.com/v4/letter/s/d78d45/32.png) [@sakshi](https://discourse.pumas.ai/u/sakshi)\
**Post date:** [September 2, 2025, 12:50pm UTC](https://discourse.pumas.ai/t/pumas-installation-error/1267/1 "2025-09-02T12:50:28Z")

</div>

hi

i am trying to install pumas 2.7

this is the error i am facing,

 ![image](https://canada1.discourse-cdn.com/flex030/uploads/pumas/original/1X/fa1fed2ee4f397a777864323359765cd9ba501a8.png)

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<div class="post-metadata">

**Author:** ![sakshi](https://avatars.discourse-cdn.com/v4/letter/s/d78d45/32.png) [@sakshi](https://discourse.pumas.ai/u/sakshi)\
**Post date:** [September 2, 2025, 12:53pm UTC](https://discourse.pumas.ai/t/pumas-installation-error/1267/3 "2025-09-02T12:53:05Z")

</div>

![image](https://canada1.discourse-cdn.com/flex030/uploads/pumas/original/1X/4886bcf95f1a08a62a3ab13827208b8a5f6e2b6e.png)

---

<div class="post-metadata">

**Author:** ![Michael](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.pumas.ai/michael/32/818_2.png) [@Michael](https://discourse.pumas.ai/u/Michael)\
**Post date:** [September 2, 2025, 1:15pm UTC](https://discourse.pumas.ai/t/pumas-installation-error/1267/4 "2025-09-02T13:15:10Z")

</div>

Morning @sakshi,

Can you please provide the entire contents of that terminal panel output, it’s cut off and there’s likely useful details in there that will help with diagnosis of the problem.

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<div class="post-metadata">

**Author:** ![sakshi](https://avatars.discourse-cdn.com/v4/letter/s/d78d45/32.png) [@sakshi](https://discourse.pumas.ai/u/sakshi)\
**Post date:** [September 2, 2025, 5:27pm UTC](https://discourse.pumas.ai/t/pumas-installation-error/1267/5 "2025-09-02T17:27:17Z")

</div>

Hey, thank you for your response,

so after i ran using Pumas, this is following error i got,

Precompiling Pumas…  
Info Given Pumas was explicitly requested, output will be shown live  
ERROR: LoadError: SystemError: opening file “C:\Users\saksh\.julia\packages\Pumas\3PP9k\src\Pumas.jl.1.11.6.jls”: No such file or directory  
Stacktrace:  
[1] systemerror(p::String, errno::Int32; extrainfo::Nothing)  
@ Base .\error.jl:176  
[2] systemerror  
@ .\error.jl:175 [inlined]  
[3] open(fname::String; lock::Bool, read::Bool, write::Nothing, create::Nothing, truncate::Nothing, append::Nothing)  
@ Base .\iostream.jl:295  
[4] open  
@ .\iostream.jl:277 [inlined]  
[5] open(fname::String, mode::String; lock::Bool)  
@ Base .\iostream.jl:358  
[6] open(fname::String, mode::String)  
@ Base .\iostream.jl:357  
[7] open(::typeof(Base.\_crc32c), ::String, ::Vararg{String}; kwargs::@Kwargs{})  
@ Base .\io.jl:408  
[8] open  
@ .\io.jl:407 [inlined]  
[9] macro expansion  
@ .\loading.jl:2175 [inlined]  
[10] macro expansion  
@ .\lock.jl:273 [inlined]  
[11] \_include\_dependency(mod::Module, \_path::String; track\_content::Bool, path\_may\_be\_dir::Bool)  
@ Base .\loading.jl:2173  
[12] \_include\_dependency  
@ .\loading.jl:2158 [inlined]  
[13] #include\_dependency#1109  
@ .\loading.jl:2203 [inlined]  
[14] include\_dependency(path::String)  
@ Base .\loading.jl:2202  
[15] top-level scope  
@ C:\Users\saksh.julia\packages\Pumas\3PP9k\src\Pumas.jl:2  
[16] include  
@ .\Base.jl:562 [inlined]  
[17] include\_package\_for\_output(pkg::Base.PkgId, input::String, depot\_path::Vector{String}, dl\_load\_path::Vector{String}, load\_path::Vector{String}, concrete\_deps::Vector{Pair{Base.PkgId, UInt128}}, source::Nothing)  
@ Base .\loading.jl:2881  
[18] top-level scope  
@ stdin:6  
in expression starting at C:\Users\saksh.julia\packages\Pumas\3PP9k\src\Pumas.jl:1  
in expression starting at stdin:6  
✗ NCA  
✗ NCA → NCADynamicQuantitiesExt  
✗ Pumas  
0 dependencies successfully precompiled in 47 seconds. 531 already precompiled.

ERROR: The following 3 direct dependencies failed to precompile:

Pumas

Failed to precompile Pumas [4f2c3c20-a4ac-11e9-067b-e5872d3484cf] to “C:\Users\saksh\.julia\compiled\v1.11\Pumas\jl\_8C6B.tmp”.  
ERROR: LoadError: SystemError: opening file “C:\Users\saksh\.julia\packages\Pumas\3PP9k\src\Pumas.jl.1.11.6.jls”: No such file or directory  
Stacktrace:  
[1] systemerror(p::String, errno::Int32; extrainfo::Nothing)  
@ Base .\error.jl:176  
[2] systemerror  
@ .\error.jl:175 [inlined]  
[3] open(fname::String; lock::Bool, read::Bool, write::Nothing, create::Nothing, truncate::Nothing, append::Nothing)  
@ Base .\iostream.jl:295  
[4] open  
@ .\iostream.jl:277 [inlined]  
[5] open(fname::String, mode::String; lock::Bool)  
@ Base .\iostream.jl:358  
[6] open(fname::String, mode::String)  
@ Base .\iostream.jl:357  
[7] open(::typeof(Base.\_crc32c), ::String, ::Vararg{String}; kwargs::@Kwargs{})  
@ Base .\io.jl:408  
[8] open  
@ .\io.jl:407 [inlined]  
[9] macro expansion  
@ .\loading.jl:2175 [inlined]  
[10] macro expansion  
@ .\lock.jl:273 [inlined]  
[11] \_include\_dependency(mod::Module, \_path::String; track\_content::Bool, path\_may\_be\_dir::Bool)  
@ Base .\loading.jl:2173  
[12] \_include\_dependency  
@ .\loading.jl:2158 [inlined]  
[13] #include\_dependency#1109  
@ .\loading.jl:2203 [inlined]  
[14] include\_dependency(path::String)  
@ Base .\loading.jl:2202  
[15] top-level scope  
@ C:\Users\saksh.julia\packages\Pumas\3PP9k\src\Pumas.jl:2  
[16] include  
@ .\Base.jl:562 [inlined]  
[17] include\_package\_for\_output(pkg::Base.PkgId, input::String, depot\_path::Vector{String}, dl\_load\_path::Vector{String}, load\_path::Vector{String}, concrete\_deps::Vector{Pair{Base.PkgId, UInt128}}, source::Nothing)  
@ Base .\loading.jl:2881  
[18] top-level scope  
@ stdin:6  
in expression starting at C:\Users\saksh.julia\packages\Pumas\3PP9k\src\Pumas.jl:1  
in expression starting at stdin:6  
NCA

Failed to precompile NCA [29142fd5-e082-4e84-b14f-4d7220ed3f6b] to “C:\Users\saksh\.julia\compiled\v1.11\NCA\jl\_6F77.tmp”.  
ERROR: LoadError: SystemError: opening file “C:\Users\saksh\.julia\packages\NCA\f0i6X\src\NCA.jl.1.11.6.jls”: No such file or directory  
Stacktrace:  
[1] systemerror(p::String, errno::Int32; extrainfo::Nothing)  
@ Base .\error.jl:176  
[2] systemerror  
@ .\error.jl:175 [inlined]  
[3] open(fname::String; lock::Bool, read::Bool, write::Nothing, create::Nothing, truncate::Nothing, append::Nothing)  
@ Base .\iostream.jl:295  
[4] open  
@ .\iostream.jl:277 [inlined]  
[5] open(fname::String, mode::String; lock::Bool)  
@ Base .\iostream.jl:358  
[6] open(fname::String, mode::String)  
@ Base .\iostream.jl:357  
[7] open(::typeof(Base.\_crc32c), ::String, ::Vararg{String}; kwargs::@Kwargs{})  
@ Base .\io.jl:408  
[8] open  
@ .\io.jl:407 [inlined]  
[9] macro expansion  
@ .\loading.jl:2175 [inlined]  
[10] macro expansion  
@ .\lock.jl:273 [inlined]  
[11] \_include\_dependency(mod::Module, \_path::String; track\_content::Bool, path\_may\_be\_dir::Bool)  
@ Base .\loading.jl:2173  
[12] \_include\_dependency  
@ .\loading.jl:2158 [inlined]  
[13] #include\_dependency#1109  
@ .\loading.jl:2203 [inlined]  
[14] include\_dependency(path::String)  
@ Base .\loading.jl:2202  
[15] top-level scope  
@ C:\Users\saksh.julia\packages\NCA\f0i6X\src\NCA.jl:2  
[16] include  
@ .\Base.jl:562 [inlined]  
[17] include\_package\_for\_output(pkg::Base.PkgId, input::String, depot\_path::Vector{String}, dl\_load\_path::Vector{String}, load\_path::Vector{String}, concrete\_deps::Vector{Pair{Base.PkgId, UInt128}}, source::Nothing)  
@ Base .\loading.jl:2881  
[18] top-level scope  
@ stdin:6  
in expression starting at C:\Users\saksh.julia\packages\NCA\f0i6X\src\NCA.jl:1  
in expression starting at stdin:6

NCADynamicQuantitiesExt

Failed to precompile NCADynamicQuantitiesExt [f1f2a2c1-374b-58df-b526-d2e714f901a2] to “C:\Users\saksh\.julia\compiled\v1.11\NCADynamicQuantitiesExt\jl\_841B.tmp”.  
ERROR: LoadError: SystemError: opening file “C:\Users\saksh\.julia\packages\NCA\f0i6X\ext\NCADynamicQuantitiesExt.jl.1.11.6.jls”: No such file or directory  
Stacktrace:  
[1] systemerror(p::String, errno::Int32; extrainfo::Nothing)  
@ Base .\error.jl:176  
[2] systemerror  
@ .\error.jl:175 [inlined]  
[3] open(fname::String; lock::Bool, read::Bool, write::Nothing, create::Nothing, truncate::Nothing, append::Nothing)  
@ Base .\iostream.jl:295  
[4] open  
@ .\iostream.jl:277 [inlined]  
[5] open(fname::String, mode::String; lock::Bool)  
@ Base .\iostream.jl:358  
[6] open(fname::String, mode::String)  
@ Base .\iostream.jl:357  
[7] open(::typeof(Base.\_crc32c), ::String, ::Vararg{String}; kwargs::@Kwargs{})  
@ Base .\io.jl:408  
[8] open  
@ .\io.jl:407 [inlined]  
[9] macro expansion  
@ .\loading.jl:2175 [inlined]  
[10] macro expansion  
@ .\lock.jl:273 [inlined]  
[11] \_include\_dependency(mod::Module, \_path::String; track\_content::Bool, path\_may\_be\_dir::Bool)  
@ Base .\loading.jl:2173  
[12] \_include\_dependency  
@ .\loading.jl:2158 [inlined]  
[13] #include\_dependency#1109  
@ .\loading.jl:2203 [inlined]  
[14] include\_dependency(path::String)  
@ Base .\loading.jl:2202  
[15] top-level scope  
@ C:\Users\saksh.julia\packages\NCA\f0i6X\ext\NCADynamicQuantitiesExt.jl:2  
[16] include  
@ .\Base.jl:562 [inlined]  
[17] include\_package\_for\_output(pkg::Base.PkgId, input::String, depot\_path::Vector{String}, dl\_load\_path::Vector{String}, load\_path::Vector{String}, concrete\_deps::Vector{Pair{Base.PkgId, UInt128}}, source::Nothing)  
@ Base .\loading.jl:2881  
[18] top-level scope  
@ stdin:6  
in expression starting at C:\Users\saksh.julia\packages\NCA\f0i6X\ext\NCADynamicQuantitiesExt.jl:1  
in expression starting at stdin:6

this is ss, hope this helps!!

 ![image](https://canada1.discourse-cdn.com/flex030/uploads/pumas/original/1X/74d7c41c2280f398257d4df51b6aacf964232b83.png)

---

<div class="post-metadata">

**Author:** ![Michael](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.pumas.ai/michael/32/818_2.png) [@Michael](https://discourse.pumas.ai/u/Michael)\
**Post date:** [September 3, 2025, 6:53am UTC](https://discourse.pumas.ai/t/pumas-installation-error/1267/6 "2025-09-03T06:53:11Z")

</div>

The issue I see here is that Pumas 2.7.0 requires using Julia 1.11.5, but the version of Julia being run in that REPL is 1.11.6.

Had you configured 2.7.0 as the default? During initial installation this should have been presented as an option, perhaps it was skipped. To do this after installation click on the “List Versions” button on the Getting Started page, then click on “Pumas 2.7.0” (it should say it’s already installed), then click “Configure VS Code”, then click “Set Globally” in the dialog that shows up in the bottom right side of the window. See below for the expected menu items you should see on each of those steps.

 ![image](https://canada1.discourse-cdn.com/flex030/uploads/pumas/original/1X/c89e910b5dc9ab765978742caa9062f6cd3d9f37.png)

 ![image](https://canada1.discourse-cdn.com/flex030/uploads/pumas/original/1X/5d6db6d4beb8c11382b9a330ea342e070660aceb.png)

 ![image](https://canada1.discourse-cdn.com/flex030/uploads/pumas/original/1X/784421501b508b1613d7b2dfbb986c496d2bcd13.png)

 ![image](https://canada1.discourse-cdn.com/flex030/uploads/pumas/original/1X/f185e007f21fee0f6abb469d9469134a95c9b7ee.png)

After doing this close and reopen VS Code just to make sure the changes have take effect.

If 1.11.6 is still what gets shown in the REPL when launching after the above is tried then please check whether the VS Code settings page contains the right settings. Use Ctrl+Shift+P to open the command pallet, then type “user settings json” and click the first option in the list. This will open the VS Code configuration file. Find the line that contains `"julia.executablePath":` and then let me know what the entire line contains. Ideally it should be ` "julia.executablePath": "julia +Pumas@2.7.0",`. If not then please let me know and we can get on a debugging call to work out the specifics.

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<div class="post-metadata">

**Author:** ![Abhiram](https://avatars.discourse-cdn.com/v4/letter/a/43a26b/32.png) [@Abhiram](https://discourse.pumas.ai/u/Abhiram)\
**Post date:** [February 2, 2026, 12:29pm UTC](https://discourse.pumas.ai/t/pumas-installation-error/1267/7 "2026-02-02T12:29:56Z")

</div>

i followed the steps  
it is showing “julia.executablePath”: “julia +Pumas@2.7.0”  
still im getting julia 1.11.6

---

<div class="post-metadata">

**Author:** ![vijay](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.pumas.ai/vijay/32/96_2.png) [@vijay](https://discourse.pumas.ai/u/vijay)\
**Post date:** [February 2, 2026, 4:28pm UTC](https://discourse.pumas.ai/t/pumas-installation-error/1267/8 "2026-02-02T16:28:51Z")

</div>

1. Please make sure your old installation of Pumas 2.6.1 is removed from Add/Remove programs
2. open a new terminal (command prompt).
3. type `juliaup status`
4. check if the `*` is set next to julia 1.11.7 or 1.11.6 or something else? It has to be set to `Pumas@2.7.1` or `Pumas@2.7.0` , whichever one you installed.
5. to do this, you need to do `juliaup default Pumas@2.7.1`
6. check `juliaup status` again and now the ``*`` should be beside `Pumas..`
7. restart vscode
8. Now start julia REPL and let us know what comes up

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<div class="post-metadata">

**Author:** ![Abhiram](https://avatars.discourse-cdn.com/v4/letter/a/43a26b/32.png) [@Abhiram](https://discourse.pumas.ai/u/Abhiram)\
**Post date:** [February 2, 2026, 5:33pm UTC](https://discourse.pumas.ai/t/pumas-installation-error/1267/9 "2026-02-02T17:33:17Z")

</div>

> [@vijay](#):
>
> yes the \* mark besides Pumas…..  
> I started Julia REPL \>\>\>Using Pumas\>\> I cannot enter license key as its showing Julia extension crashed

 ![image](https://canada1.discourse-cdn.com/flex030/uploads/pumas/original/1X/b65145681712adb49dcb036d9e522ed2296abd50.png)

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<div class="post-metadata">

**Author:** ![vijay](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.pumas.ai/vijay/32/96_2.png) [@vijay](https://discourse.pumas.ai/u/vijay)\
**Post date:** [February 2, 2026, 5:46pm UTC](https://discourse.pumas.ai/t/pumas-installation-error/1267/10 "2026-02-02T17:46:17Z")

</div>

can you open a powershell that is not in VSCode, so go to the windows menu and open powershell. Could you please type `julia` there and that should start 1.11.7. If that is the version that loads, then you can try `using Pumas` in the `> julia` prompt there. When the prompt to enter the license comes in there, try entering the license. The crash associated with julia when you are tyring to use VSCode is probably only in that environment. If you are able to successfully include a license in the powershell, then you can start using Pumas in VSCode. If this does not work, then we can get on a short call to troubleshoot

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<div class="post-metadata">

**Author:** ![Abhiram](https://avatars.discourse-cdn.com/v4/letter/a/43a26b/32.png) [@Abhiram](https://discourse.pumas.ai/u/Abhiram)\
**Post date:** [February 3, 2026, 5:11am UTC](https://discourse.pumas.ai/t/pumas-installation-error/1267/11 "2026-02-03T05:11:17Z")

</div>

I tried using powershell it is showing 1.11.5  
I even downloaded the julia 1.11.7 from julia website

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<div class="post-metadata">

**Author:** ![vijay](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.pumas.ai/vijay/32/96_2.png) [@vijay](https://discourse.pumas.ai/u/vijay)\
**Post date:** [February 3, 2026, 5:25am UTC](https://discourse.pumas.ai/t/pumas-installation-error/1267/12 "2026-02-03T05:25:17Z")

</div>

can you show me your `juliaup status` result here pleas

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<div class="post-metadata">

**Author:** ![Abhiram](https://avatars.discourse-cdn.com/v4/letter/a/43a26b/32.png) [@Abhiram](https://discourse.pumas.ai/u/Abhiram)\
**Post date:** [February 3, 2026, 5:28am UTC](https://discourse.pumas.ai/t/pumas-installation-error/1267/13 "2026-02-03T05:28:39Z")

</div>

> [@vijay](#):
>
> after running juliaup status in terminal i got this

 ![image](https://canada1.discourse-cdn.com/flex030/uploads/pumas/original/1X/6fcf6c751c36469cfe1c8e89d27d5fdd72ec1869.png)

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<div class="post-metadata">

**Author:** ![vijay](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.pumas.ai/vijay/32/96_2.png) [@vijay](https://discourse.pumas.ai/u/vijay)\
**Post date:** [February 3, 2026, 5:48am UTC](https://discourse.pumas.ai/t/pumas-installation-error/1267/14 "2026-02-03T05:48:09Z")

</div>

ok. So you have Pumas 2.7.0. In the powershell, now if you run

1. `julia`
2. once `julia` starts, `using Pumas` - what do you get? Is it asking to install license? If so, paste in your license key there.
3. If the license is already there and the information is printed you should be good to go

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<div class="post-metadata">

**Author:** ![Abhiram](https://avatars.discourse-cdn.com/v4/letter/a/43a26b/32.png) [@Abhiram](https://discourse.pumas.ai/u/Abhiram)\
**Post date:** [February 3, 2026, 6:04am UTC](https://discourse.pumas.ai/t/pumas-installation-error/1267/15 "2026-02-03T06:04:50Z")

</div>

![image](https://canada1.discourse-cdn.com/flex030/uploads/pumas/original/1X/59e5e1ae9c3ec1bb757e3b30ca2ec0b4274706eb.png)julia version 1.11.5 is still there  
how do i get julia 1.11.7

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<div class="post-metadata">

**Author:** ![vijay](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.pumas.ai/vijay/32/96_2.png) [@vijay](https://discourse.pumas.ai/u/vijay)\
**Post date:** [February 3, 2026, 6:10am UTC](https://discourse.pumas.ai/t/pumas-installation-error/1267/16 "2026-02-03T06:10:34Z")

</div>

Follow the instructions here [Pumas Installation Error through VS Code - #6 by vijay](https://discourse.pumas.ai/t/pumas-installation-error-through-vs-code/1348/6)

Once you enter the license key, then you at least have Pumas activated. Then you can update 2.7.1 by following the documentation

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<div class="post-metadata">

**Author:** ![Abhiram](https://avatars.discourse-cdn.com/v4/letter/a/43a26b/32.png) [@Abhiram](https://discourse.pumas.ai/u/Abhiram)\
**Post date:** [February 3, 2026, 6:37am UTC](https://discourse.pumas.ai/t/pumas-installation-error/1267/17 "2026-02-03T06:37:47Z")

</div>

How do I update julia from 1.11.5 to 1.11.7?

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<div class="post-metadata">

**Author:** ![vijay](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.pumas.ai/vijay/32/96_2.png) [@vijay](https://discourse.pumas.ai/u/vijay)\
**Post date:** [February 3, 2026, 6:53am UTC](https://discourse.pumas.ai/t/pumas-installation-error/1267/18 "2026-02-03T06:53:16Z")

</div>

> **[Managing Versions - Desktop Installation · Pumas](https://docs.pumas.ai/stable/platformdetails/desktop/#Managing-Versions)**
>
> This page describes the installation of Pumas on desktop systems (Windows and macOS). Two installation methods are available: using the Visual Studio Code extension (recommended) or manual installation via the command line. | Documentation for Pumas.

you are not updating julia, you need to update Pumas to get the latest julia version

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<div class="post-metadata">

**Author:** ![andreasnoack](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.pumas.ai/andreasnoack/32/22_2.png) [@andreasnoack](https://discourse.pumas.ai/u/andreasnoack)\
**Post date:** [February 3, 2026, 3:31pm UTC](https://discourse.pumas.ai/t/pumas-installation-error/1267/19 "2026-02-03T15:31:11Z")

</div>

A post was split to a new topic: [Error during the Pumas installation](https://discourse.pumas.ai/t/error-during-the-pumas-installation/1359)