Language server crash

[unicode-it]

After installing as written in the docs and opening any vue file, I get the following error.

[coc.nvim]: UnhandledRejection: Connection to server got closed. Server will not be restarted.
Error: Connection to server got closed. Server will not be restarted.                                                                                                                  
    at np.handleConnectionClosed (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:223:967)
    at np.handleConnectionClosed (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:223:28612)
    at t (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:223:386)
    at tM.invoke (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:35:9670)
    at sd.fire (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:35:10436)
    at bi (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:36:10897)
    at tM.invoke (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:35:9670)
    at sd.fire (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:35:10436)
    at _M.fireClose (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:35:12716)
    at ChildProcess.<anonymous> (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:62:11975)
UnhandledRejection: Connection to server got closed. Server will not be restarted.
Error: Connection to server got closed. Server will not be restarted.
    at np.handleConnectionClosed (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:223:967)
    at np.handleConnectionClosed (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:223:28612)
    at t (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:223:386)
    at tM.invoke (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:35:9670)
    at sd.fire (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:35:10436)
    at bi (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:36:10897)
    at tM.invoke (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:35:9670)
    at sd.fire (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:35:10436)
    at _M.fireClose (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:35:12716)
    at ChildProcess.<anonymous> (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:62:11975)
UnhandledRejection: Connection to server got closed. Server will not be restarted.
Error: Connection to server got closed. Server will not be restarted.
    at np.handleConnectionClosed (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:223:967)
    at np.handleConnectionClosed (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:223:28612)
    at t (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:223:386)
    at tM.invoke (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:35:9670)
    at sd.fire (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:35:10436)
    at bi (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:36:10897)
    at tM.invoke (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:35:9670)
    at sd.fire (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:35:10436)
    at _M.fireClose (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:35:12716)
    at ChildProcess.<anonymous> (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:62:11975)
UnhandledRejection: Connection to server got closed. Server will not be restarted.

{
  "name": "Volar doctor info",
  "filePath": "xxx.vue",
  "clientVersion": "0.7.8",
  "serverVersion": "0.29.8",
  "vueVersion": "3.2.22",
  "vueRuntimeDomVersion": "3.2.22",
  "vueTscVersion": "0.29.8",
  "tsVersion": "4.4.3",
  "tsServerPath": "/home/user/.config/coc/extensions/node_modules/@yaegassy/coc-volar/node_modules/typescript/lib/tsserverlibrary.js",
  "settings": {
    "enable": true,
    "useWorkspaceTsdk": false,
    "diagnostics": {
      "enable": true,
      "tsLocale": "en"
    },
    "lowPowerMode": false,
    "codeLens": {
      "references": true,
      "pugTools": false,
      "scriptSetupTools": false
    },
    "autoClosingTags": false,
    "autoCompleteRefs": false,
    "takeOverMode": {
      "enabled": false
    },
    "formatting": {
      "enable": true,
      "printWidth": 100
    },
    "completion": {
      "tagNameCase": "both",
      "attrNameCase": "kebab",
      "autoImportComponent": true
    },
    "dev": {
      "serverPath": ""
    },
    "fix": {
      "completion": true
    }
  }
}

[yaegassy]

I am unable to reproduce the crash in my environment. Can you tell me the output result of :CocInfo in your environment?

Also, do you have the same problem with vue projects (ts/js) created with vite? https://vitejs.dev/guide/#scaffolding-your-first-vite-project

[unicode-it]

CocInfo

## versions

vim version: NVIM v0.6.0
node version: v12.22.7
coc.nvim version: 0.0.80-03c9add7cd
coc.nvim directory: /home/user/.config/nvim/plugged/coc.nvim
term: xterm-256color
platform: linux

[unicode-it]

I created a fresh vue-ts project with vite as you explained and still the same error:

[coc.nvim]: UnhandledRejection: Connection to server got closed. Server will not be restarted.
Error: Connection to server got closed. Server will not be restarted.                                                                                                                  
    at np.handleConnectionClosed (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:223:967)
    at np.handleConnectionClosed (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:223:28612)
    at t (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:223:386)
    at tM.invoke (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:35:9670)
    at sd.fire (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:35:10436)
    at bi (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:36:10897)
    at tM.invoke (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:35:9670)
    at sd.fire (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:35:10436)
    at _M.fireClose (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:35:12716)
    at ChildProcess.<anonymous> (/home/user/.config/nvim/plugged/coc.nvim/build/index.js:62:11975)

[unicode-it]

Is it possible to get a stacktrace / crash log of the server component?

[unicode-it]

Maybe it is an incompatibility with my nvim config. But I don't know how to debug further. I don't know how the server component is executed and why it crashes.

[yaegassy]

Is it possible to update the Node.js version? Can you update to at least v14 or higher and give it a try?

This may be a related issue.

• node12 run command vue-tsc error vuejs/language-tools#737
• Incorrect engines field on vscode-jsonrpc microsoft/vscode-languageserver-node#861

[unicode-it]

Thank you. The update solved the issue.

I would propose to add this requirement to the docs. And some hints on debugging issues could be nice as well.