# Failure to retrieve cache files with language server

**URL:** <https://discourse.julialang.org/t/failure-to-retrieve-cache-files-with-language-server/72489>\
**Category:** VS Code\
**Tags:** languageserver, mac-m1\
**Created:** [December 2, 2021, 8:24pm UTC](https://discourse.julialang.org/t/failure-to-retrieve-cache-files-with-language-server/72489 "2021-12-02T20:24:14Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![artinmg](https://avatars.discourse-cdn.com/v4/letter/a/aeb1de/32.png) [@artinmg](https://discourse.julialang.org/u/artinmg)\
**Post date:** [December 2, 2021, 8:24pm UTC](https://discourse.julialang.org/t/failure-to-retrieve-cache-files-with-language-server/72489/1 "2021-12-02T20:24:14Z")

</div>

I’m using Julia 1.7.0 on an M1 Mac with VS Code 1.62.3 and Julia for VS Code 1.5.6. When I load the extension the language server fails to start, giving the following error message:

```julia
[ Info: Starting the Julia Language Server
[ Info: Symbol server store is at '/Users/*/Library/Application Support/Code/User/globalStorage/julialang.language-julia/symbolstorev5'.
[ Info: Starting LS at 1638475283
[ Info: Downloading caches...
┌ Info: Couldn't retrieve cache file for Tokenize.
└ exception = HTTP/2 404 while requesting https://www.julia-vscode.org/symbolcache/store/v1/packages/T/Tokenize_0796e94c-ce3b-5d07-9a54-7f471281c624/v0.5.21_0952c9cee34988092d73a5708780b3917166a0dd.tar.gz
[ Info: Downloading caches... (5%)
┌ Info: Couldn't retrieve cache file for BenchmarkTools.
└ exception = HTTP/2 404 while requesting https://www.julia-vscode.org/symbolcache/store/v1/packages/B/BenchmarkTools_6e4b80f9-dd63-53aa-95a3-0cdb28fa8baf/v1.2.0_61adeb0823084487000600ef8b1c00cc2474cd47.tar.gz
[ Info: Downloading caches... (11%)
┌ Info: Couldn't retrieve cache file for MutableArithmetics.
└ exception = HTTP/2 404 while requesting https://www.julia-vscode.org/symbolcache/store/v1/packages/M/MutableArithmetics_d8a4904e-b15c-11e9-3269-09a3773c0cb0/v0.3.1_7bb6853d9afec54019c1397c6eb610b9b9a19525.tar.gz
[ Info: Downloading caches... (16%)
┌ Info: Couldn't retrieve cache file for CategoricalArrays.
└ exception = HTTP/2 404 while requesting https://www.julia-vscode.org/symbolcache/store/v1/packages/C/CategoricalArrays_324d7699-5711-5eae-9e2f-1d82baa6b597/v0.10.2_c308f209870fdbd84cb20332b6dfaf14bf3387f8.tar.gz
[ Info: Downloading caches... (21%)
┌ Info: Couldn't retrieve cache file for CSV.
└ exception = HTTP/2 404 while requesting https://www.julia-vscode.org/symbolcache/store/v1/packages/C/CSV_336ed68f-0bac-5ca0-87d4-7b16caf5d00b/v0.9.11_49f14b6c56a2da47608fe30aed711b5882264d7a.tar.gz
[ Info: Downloading caches... (26%)
┌ Info: Couldn't retrieve cache file for OffsetArrays.
└ exception = HTTP/2 404 while requesting https://www.julia-vscode.org/symbolcache/store/v1/packages/O/OffsetArrays_6fe1bfb0-de20-5000-8ca7-80f57d26f881/v1.10.8_043017e0bdeff61cfbb7afeb558ab29536bbb5ed.tar.gz
[ Info: Downloading caches... (32%)
┌ Info: Couldn't retrieve cache file for CSTParser.
└ exception = HTTP/2 404 while requesting https://www.julia-vscode.org/symbolcache/store/v1/packages/C/CSTParser_00ebfdb7-1f24-5e51-bd34-a7502290713f/v3.3.0_f9a6389348207faf5e5c62cbc7e89d19688d338a.tar.gz
[ Info: Downloading caches... (37%)
┌ Info: Couldn't retrieve cache file for PrettyTables.
└ exception = HTTP/2 404 while requesting https://www.julia-vscode.org/symbolcache/store/v1/packages/P/PrettyTables_08abe8d2-0d0c-5749-adfa-8a2ac140af0d/v1.2.3_d940010be611ee9d67064fe559edbb305f8cc0eb.tar.gz
[ Info: Downloading caches... (42%)
┌ Info: Couldn't retrieve cache file for SymbolServer.
└ exception = HTTP/2 404 while requesting https://www.julia-vscode.org/symbolcache/store/v1/packages/S/SymbolServer_cf896787-08d5-524d-9de7-132aaa0cb996/v7.1.0_98fba1388841bdea0e412143894df31bab27b969.tar.gz
[ Info: Downloading caches... (47%)
┌ Info: Couldn't retrieve cache file for InvertedIndices.
└ exception = HTTP/2 404 while requesting https://www.julia-vscode.org/symbolcache/store/v1/packages/I/InvertedIndices_41ab1584-1d38-5bbf-9106-f11c6c58b48f/v1.1.0_bee5f1ef5bf65df56bdd2e40447590b272a5471f.tar.gz
[ Info: Downloading caches... (53%)
┌ Info: Couldn't retrieve cache file for FilePathsBase.
└ exception = HTTP/2 404 while requesting https://www.julia-vscode.org/symbolcache/store/v1/packages/F/FilePathsBase_48062228-2e41-5def-b9a4-89aafe57970f/v0.9.17_04d13bfa8ef11720c24e4d840c0033d145537df7.tar.gz
[ Info: Downloading caches... (58%)
┌ Info: Couldn't retrieve cache file for Loess.
└ exception = HTTP/2 404 while requesting https://www.julia-vscode.org/symbolcache/store/v1/packages/L/Loess_4345ca2d-374a-55d4-8d30-97f9976e7612/v0.5.4_46efcea75c890e5d820e670516dc156689851722.tar.gz
[ Info: Downloading caches... (63%)
┌ Info: Couldn't retrieve cache file for Distances.
└ exception = HTTP/2 404 while requesting https://www.julia-vscode.org/symbolcache/store/v1/packages/D/Distances_b4f34e82-e78d-54a5-968a-f98e89d6e8f7/v0.10.6_837c83e5574582e07662bbbba733964ff7c26b9d.tar.gz
[ Info: Downloading caches... (68%)
┌ Info: Couldn't retrieve cache file for MathOptInterface.
└ exception = HTTP/2 404 while requesting https://www.julia-vscode.org/symbolcache/store/v1/packages/M/MathOptInterface_b8f27783-ece8-5eb3-8dc8-9495eed66fee/v0.10.6_92b7de61ecb616562fd2501334f729cc9db2a9a6.tar.gz
[ Info: Downloading caches... (74%)
┌ Info: Couldn't retrieve cache file for WoodburyMatrices.
└ exception = HTTP/2 404 while requesting https://www.julia-vscode.org/symbolcache/store/v1/packages/W/WoodburyMatrices_efce3f68-66dc-5838-9240-27a6d6f5f9b6/v0.5.5_de67fa59e33ad156a590055375a30b23c40299d3.tar.gz
[ Info: Downloading caches... (79%)
┌ Info: Couldn't retrieve cache file for FFTW.
└ exception = HTTP/2 404 while requesting https://www.julia-vscode.org/symbolcache/store/v1/packages/F/FFTW_7a1cc6ca-52ef-59f5-83cd-3a7055c09341/v1.4.5_463cb335fa22c4ebacfd1faba5fde14edb80d96c.tar.gz
[ Info: Downloading caches... (84%)
┌ Info: Couldn't retrieve cache file for WeakRefStrings.
└ exception = HTTP/2 404 while requesting https://www.julia-vscode.org/symbolcache/store/v1/packages/W/WeakRefStrings_ea10d353-3f73-51f8-a26c-33c1cb351aa5/v1.4.1_c69f9da3ff2f4f02e811c3323c22e5dfcb584cfa.tar.gz
[ Info: Downloading caches... (89%)
┌ Info: Couldn't retrieve cache file for Ratios.
└ exception = HTTP/2 404 while requesting https://www.julia-vscode.org/symbolcache/store/v1/packages/R/Ratios_c84ed2f1-dad5-54f0-aa8e-dbefe2724439/v0.4.2_01d341f502250e81f6fec0afe662aa861392a3aa.tar.gz
[ Info: Downloading caches... (95%)
┌ Info: Couldn't retrieve cache file for AxisAlgorithms.
└ exception = HTTP/2 404 while requesting https://www.julia-vscode.org/symbolcache/store/v1/packages/A/AxisAlgorithms_13072b0f-2c55-5437-9ae7-d433b7a33950/v1.0.1_66771c8d21c8ff5e3a93379480a2307ac36863f7.tar.gz
[ Info: All cache files downloaded. (100%)
[ Info: Loading StatsBase from cache... (0%)
[ Info: Loading Statistics from cache... (0%)
[ Info: Loading LinearAlgebra from cache... (0%)
[Info - 3:01:40 PM] Connection to server got closed. Server will restart.

```

This will continue five times until it gives up. It looks like the cache files it’s pointing to don’t exist. Has anyone experienced this? Any help much appreciated.

---

<div class="post-metadata">

**Author:** ![SH\_S](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/sh_s/32/32256_2.png) [@SH\_S](https://discourse.julialang.org/u/SH_S)\
**Post date:** [December 28, 2021, 5:23pm UTC](https://discourse.julialang.org/t/failure-to-retrieve-cache-files-with-language-server/72489/2 "2021-12-28T17:23:47Z")

</div>

I also had this problem, did you solve it?

---

<div class="post-metadata">

**Author:** ![artinmg](https://avatars.discourse-cdn.com/v4/letter/a/aeb1de/32.png) [@artinmg](https://discourse.julialang.org/u/artinmg)\
**Post date:** [December 28, 2021, 5:42pm UTC](https://discourse.julialang.org/t/failure-to-retrieve-cache-files-with-language-server/72489/3 "2021-12-28T17:42:32Z")

</div>

I’m not sure if this would solve it since I’m not using VS Code at the moment, but ultimately I did realize that the release version of LanguageServer actually wasn’t working at all in any environment. I resolved that by installing the master (add LanguageServer#master) where it functioned properly on my M1 Mac. It’s possible that the VS Code extension will also work with the master branch installed.

---

<div class="post-metadata">

**Author:** ![SH\_S](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/sh_s/32/32256_2.png) [@SH\_S](https://discourse.julialang.org/u/SH_S)\
**Post date:** [December 28, 2021, 6:45pm UTC](https://discourse.julialang.org/t/failure-to-retrieve-cache-files-with-language-server/72489/4 "2021-12-28T18:45:20Z")

</div>

I see, thank you