# Error while communicating with the LS - stubborn problem

**URL:** https://discourse.julialang.org/t/error-while-communicating-with-the-ls-stubborn-problem/135812
**Category:** General Usage
**Tags:** languageserver
**Created:** [February 24, 2026, 12:55pm UTC](https://discourse.julialang.org/t/error-while-communicating-with-the-ls-stubborn-problem/135812 "2026-02-24T12:55:53Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![sfearon94](https://avatars.discourse-cdn.com/v4/letter/s/9e8a1a/32.png) [@sfearon94](https://discourse.julialang.org/u/sfearon94)
#### Post date: [February 24, 2026, 12:55pm UTC](https://discourse.julialang.org/t/error-while-communicating-with-the-ls-stubborn-problem/135812/1 "2026-02-24T12:55:53Z")

</div>

My Julia LS will not start on two machinesI am using to run a model with work - I get a pop up ‘Error while communicating with the LS’.

When I check the output for Julia Language Server I get a readout about a possibly stale pidfile. I have tried deleting this and hoping it would reset, but then the loading gets stuck halfway through and the LS never starts. When I initiating our model on another machine from scratch, I went to run it through Julia REPL and the exact same issue is occuring.

I have read other posts here about using juliaup release, for example, and none of them have worked. Does anyone have any insight here?