Vscode-js-debug: Error: Cannot find module '"/Applications/Visual' when launching `pwa-node` with `npm`

[Kristof-Mattei]

Version: 1.46.1
Commit: cd9ea6488829f560dc949a8b2fb789f3cdc05f5d
Date: 2020-06-17T21:17:14.222Z
Electron: 7.3.1
Chrome: 78.0.3904.130
Node.js: 12.8.1
V8: 7.8.279.23-electron.0
OS: Darwin x64 19.5.0

When I try to debug a project such as this absolute minimal example I cannot launch the Launch via NPM configuration.

internal/modules/cjs/loader.js:638
    throw err;
    ^

Error: Cannot find module '"/Applications/Visual'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:636:15)
    at Function.Module._load (internal/modules/cjs/loader.js:562:25)
    at Module.require (internal/modules/cjs/loader.js:692:17)
    at Module._preloadModules (internal/modules/cjs/loader.js:901:12)
    at preloadModules (internal/bootstrap/node.js:602:7)
    at startup (internal/bootstrap/node.js:273:9)
    at bootstrapNodeJSCore (internal/bootstrap/node.js:623:3)

irrespective of using debug.javascript.usePreview on or off. (see example repo)

I have cleared my cache in $HOME/Library/Application Support/Code and disabled ALL extensions, all to no avail.

[Kristof-Mattei]

Same launching it in WSL:

Version: 1.46.1 (user setup)
Commit: cd9ea6488829f560dc949a8b2fb789f3cdc05f5d
Date: 2020-06-17T21:13:20.174Z
Electron: 7.3.1
Chrome: 78.0.3904.130
Node.js: 12.8.1
V8: 7.8.279.23-electron.0
OS: Windows_NT x64 10.0.19041

internal/modules/cjs/loader.js:638
    throw err;
    ^

Error: Cannot find module '"/home/kristof/.vscode-server/bin/cd9ea6488829f560dc949a8b2fb789f3cdc05f5d/extensions/ms-vscode.js-debug/src/bootloader.bundle.js"'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:636:15)
    at Function.Module._load (internal/modules/cjs/loader.js:562:25)
    at Module.require (internal/modules/cjs/loader.js:692:17)
    at Module._preloadModules (internal/modules/cjs/loader.js:901:12)
    at preloadModules (internal/bootstrap/node.js:602:7)
    at startup (internal/bootstrap/node.js:273:9)
    at bootstrapNodeJSCore (internal/bootstrap/node.js:623:3)

[connor4312]

What node --version do you have?

This looks like we're detecting Node >=11 from the extension (which fixed their argument parsing to allow us to use spaces and wrap paths in quotes) but you're actually running Node 10.

[connor4312]

Oh, nevermind. We skip validation if the runtime executable isn't node.

https://github.com/microsoft/vscode-js-debug/blob/8154352894f15140f181385d1a3e8af084241be3/src/targets/node/nodeBinaryProvider.ts#L48-L52

I think for the purposes of version querying we could rewrite npm to node to fix this.

[connor4312]

Fixed in the next nightly. For yarn, npm, and pnpm, we will attempt to resolve the underlying node version.

[Kristof-Mattei]

Thanks @connor4312 !

[connor4312]

Verification steps:

1. Use Node 10. nvm or a dev container would work well
2. Have a launch config as linked where the runtimeExecutable is set to npm, yarn, or pnpm
3. Verify that you can successfully run and debug scripts

[shrinktofit]

Have a launch config as linked where the runtimeExecutable is set to npm, yarn, or pnpm

"runtimeExecutable": "${workspaceRoot}/node_modules/.bin/electron",
"windows": {
  "runtimeExecutable": "${workspaceRoot}/node_modules/.bin/electron.cmd"
},

Electron has same issue.

[connor4312]

See: https://github.com/microsoft/vscode/issues/102035#issuecomment-656386565

[shrinktofit]

Still:

Verbose logs are written to:
C:\Users\1\AppData\Local\Temp\vscode-debugadapter-17.json.gz
X:\Repos\Cocos\editor-3d/node_modules/.bin/electron.cmd ./app --pass-through --dev
Debugger listening on ws://127.0.0.1:14371/c71844bd-a66d-46d5-b9cf-f908bee4d84a
For help, see: https://nodejs.org/en/docs/inspector
Debugger attached.

internal/modules/cjs/loader.js:686
    throw err;
    ^

Error: Cannot find module '"c:/Users/1/AppData/Local/Programs/Microsoft'
Require stack:
- internal/preload
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:683:15)
    at Function.Module._load (internal/modules/cjs/loader.js:601:27)
    at Module.require (internal/modules/cjs/loader.js:739:19)
    at Module._preloadModules (internal/modules/cjs/loader.js:971:12)
    at loadPreloadModules (internal/bootstrap/pre_execution.js:365:5)
    at prepareMainThreadExecution (internal/bootstrap/pre_execution.js:48:3)
    at internal/main/run_main_module.js:14:1

I have installed the nightly debugger(from store) and enable:

"debug.javascript.usePreview": true,

[connor4312]

Can you share the trace log?

[connor4312]

A fix for this issue has now been released in VS Code 1.47.2. If you previously had to opt-out of the new debugger, you should be safe to turn it back on. Thanks again for the report!

[mikeerickson]

@connor4312 I am still receiving this issue using vscode 1.51.0 on macOS Catalina

Debugger listening on ws://127.0.0.1:61001/0054e6da-ca4e-41f4-a36a-78bfe8410a10
For help, see: https://nodejs.org/en/docs/inspector
Debugger attached.
Waiting for the debugger to disconnect...
internal/modules/cjs/loader.js:1033
  throw err;
  ^

Error: Cannot find module '/Users/mikee/scripts/examples/test-arrays.js'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:1030:15)
    at Function.Module._load (internal/modules/cjs/loader.js:899:27)
    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:71:12)
    at internal/main/run_main_module.js:17:47 {
  code: 'MODULE_NOT_FOUND',
  requireStack: []
}

[connor4312]

That is not a debugger-related error.

[harrisgeo88]

I had the same problem and restarting VSCode fixed it... 🤔

[gklee555]

@harrisgeo88 That worked for me! Thanks!

[KenshiroNiioka]

@connor4312
Hello, I have the same problem.
I tried to restart did not improve the situation.
Can't you see what's not right?

output log

/Users/niioka-kenshiro/.anyenv/envs/nodenv/shims/node ./myProjectDir/index.js
internal/modules/cjs/loader.js:582
    throw err;
    ^

Error: Cannot find module '"/Applications/Visual'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:580:15)
    at Function.Module._load (internal/modules/cjs/loader.js:506:25)
    at Module.require (internal/modules/cjs/loader.js:636:17)
    at Module._preloadModules (internal/modules/cjs/loader.js:811:12)
    at preloadModules (internal/bootstrap/node.js:594:7)
    at startup (internal/bootstrap/node.js:275:9)
    at bootstrapNodeJSCore (internal/bootstrap/node.js:739:3)
Process exited with code 1

launch.json

{
    "version": "0.2.0",
    "configurations": [
        {
            "type": "pwa-node",
            "request": "launch",
            "name": "Launch Program",
            "skipFiles": [
                "<node_internals>/**"
            ],
            "program": "${workspaceFolder}/myProjectDir/index.js"
        }
    ]
}

About my VSCode

Version: 1.52.1
Commit: ea3859d4ba2f3e577a159bc91e3074c5d85c0523
Date: 2020-12-16T16:30:02.420Z
Electron: 9.3.5
Chrome: 83.0.4103.122
Node.js: 12.14.1
V8: 8.3.110.13-electron.0
OS: Darwin x64 19.6.0

myProject Node version

niioka-kenshiro:myProjectDir niioka-kenshiro$ node --version
v10.14.1

[michaelhyman]

I have the same issue after updating my node version today.

    {
        "name": "Launch via NPM",
        "type": "node",
        "request": "launch",
        "cwd": "${workspaceRoot}",
        "runtimeExecutable": "npm",
        "runtimeArgs": [
            "run-script", "foo", "--max-old-space-size=8192", "--expose-gc", "--trace_gc"
        ],
        //"port": 5858,
        "skipFiles": [
            "<node_internals>/**"
        ],
        "program": "${workspaceFolder}/foo.js",

    }

[connor4312]

Thanks for the comment, can you open a new issue and include the log using the instructions in the template?