"Error: Connection got disposed" on save

[nhjk]

When I try to save a file I get the following error output:

[Error - 4:14:31 PM] Connection to server got closed. Server will not be restarted.
[Error - 4:14:31 PM] Request textDocument/formatting failed.
Error: Connection got disposed.
	at Object.dispose (/Users/[redacted]/.vscode/extensions/freebroccolo.reasonml-1.0.38/node_modules/vscode-jsonrpc/lib/main.js:825:25)
	at Object.dispose (/Users/[redacted]/.vscode/extensions/freebroccolo.reasonml-1.0.38/node_modules/vscode-languageclient/lib/client.js:57:35)
	at LanguageClient.handleConnectionClosed (/Users/[redacted]/.vscode/extensions/freebroccolo.reasonml-1.0.38/node_modules/vscode-languageclient/lib/client.js:1954:42)
	at LanguageClient.handleConnectionClosed (/Users/[redacted]/.vscode/extensions/freebroccolo.reasonml-1.0.38/node_modules/vscode-languageclient/lib/main.js:126:15)
	at closeHandler (/Users/[redacted]/.vscode/extensions/freebroccolo.reasonml-1.0.38/node_modules/vscode-languageclient/lib/client.js:1941:18)
	at CallbackList.invoke (/Users/[redacted]/.vscode/extensions/freebroccolo.reasonml-1.0.38/node_modules/vscode-jsonrpc/lib/events.js:71:39)
	at Emitter.fire (/Users/[redacted]/.vscode/extensions/freebroccolo.reasonml-1.0.38/node_modules/vscode-jsonrpc/lib/events.js:135:36)
	at closeHandler (/Users/[redacted]/.vscode/extensions/freebroccolo.reasonml-1.0.38/node_modules/vscode-jsonrpc/lib/main.js:221:26)
	at CallbackList.invoke (/Users/[redacted]/.vscode/extensions/freebroccolo.reasonml-1.0.38/node_modules/vscode-jsonrpc/lib/events.js:71:39)
	at Emitter.fire (/Users/[redacted]/.vscode/extensions/freebroccolo.reasonml-1.0.38/node_modules/vscode-jsonrpc/lib/events.js:135:36)
	at IPCMessageReader.AbstractMessageReader.fireClose (/Users/[redacted]/.vscode/extensions/freebroccolo.reasonml-1.0.38/node_modules/vscode-jsonrpc/lib/messageReader.js:135:27)
	at ChildProcess.<anonymous> (/Users/[redacted]/.vscode/extensions/freebroccolo.reasonml-1.0.38/node_modules/vscode-jsonrpc/lib/messageReader.js:253:61)
	at emitTwo (events.js:131:20)
	at ChildProcess.emit (events.js:214:7)
	at maybeClose (internal/child_process.js:925:16)
	at Process.ChildProcess._handle.onexit (internal/child_process.js:209:5)

The syntax highlighting works but I'm not sure if anything else does.

I've installed reason according to the instructions at https://reasonml.github.io/docs/en/installation.
This is just yarn global add bs-platform.

Also the link in the readme of this project (in section https://github.com/reasonml-editor/vscode-reasonml#reason) is outdated, I can send a pull request to update it if you want.

[Mikko Ahlroth]

I also have this problem.

Workaround: The part crashing is the formatter. In your settings, use this to prevent autoformatting OCaml files:

  "[ocaml]": {
    "editor.formatOnSave": false
  },

You may need to add another block for ReasonML, if you are using that.

[Xuan Huang (黄玄)]

It's probably replicated with #142

Formatting on save for OCaml requires having ocp-indent installed (usually via opam). That may be why you are seeing this error.

[Xuan Huang (黄玄)]

@freebroccolo I actually encounter this issue today myself. 😆It works for me after I installed ocp-indent.
I can probably help tho. Would you mind pointing out where can we catch this exception and "provide some better feedback about this in upcoming versions."?

[Skip R.]

I'm still getting this error even with ocp-indent installed.

[Varun Patro]

@freebroccolo Is there an update on this?

Here's a snippet of my errors:

[Error - 7:37:57 PM] Connection to server got closed. Server will not be restarted.
[Error - 7:37:57 PM] Request textDocument/formatting failed.
Error: Connection got disposed.
	at Object.dispose (/Users/varun/.vscode/extensions/freebroccolo.reasonml-1.0.38/node_modules/vscode-jsonrpc/lib/main.js:825:25)

In your ocaml-language-server repo, you say I need ocaml version 4.02.3. Do you think that is the cause?

[Max Mathys]

I fixed this issue by installing ocp-indent with opam install ocp-indent.

[Maksim Yegorov]

Fixed by adding the path to ocp-indent to settings.json:

{
    ...
    "editor.formatOnSave": true,
    "reason.path.ocpindent": "/path/to/ocp-indent",
    ...
}