`-4058 scandir ENOENT` error occurred when creating the `TreeEditor` extension

[un4gt]

When i'm creating TreeEditor extension using command yo theia-extension, i got follow error:

After I created the folder and file manually, the extension was successfully created. But I don't have the above error when creating other extensions.

[vince-fugnitto]

@4EverM thank you for the issue, can you confirm if you are using the latest version of the generator (v0.1.36)? I am unable to reproduce the problem, and CI is also successfully passing when generating the tree-editor template.

[un4gt]

@vince-fugnitto I'm sorry, I forgot to provide version of generator 。 The version on my computer is as follow:

I uninstalled yo and generator-theia-extension and reinstalled them, but the problem is still the same!

[msujew]

It might be a Windows specific issue. Maybe it makes sense to add a Windows platform runner to our testing matrix?

I currently don't have access to a Windows machine to reproduce this.

[JonasHelming]

Very likely. The special thing about these two files is that they are moved after the copy.

[un4gt]

I tried it on another windows laptop and cloud server, but the same problem occurs when creating the TreeEditor extension.

windows laptop:

cloud server:

I'm using the latest version of the generator (v0.1.36)

[metadatadriven]

Having exactly the same problem on Ubuntu 22.04 (on GitPod)

$ npm list -g --depth 0
/home/gitpod/.nvm/versions/node/v20.9.0/lib
├── corepack@0.20.0
├── generator-theia-extension@0.1.36
├── node-gyp@10.0.1
├── npm@10.1.0
├── pnpm@8.10.5
├── typescript@5.2.2
├── yarn@1.22.21
└── yo@4.3.1

I can create hello-world and widget ok but not TreeEditor

$ yo theia-extension --standalone
? The extension's type TreeEditor
? The extension's name tree-editor
TreeEditor
Please remember to add the standalone extension manually to your root package.json and to your product, e.g. in browser-app/package.json
node:events:492
      throw er; // Unhandled 'error' event
      ^

Error: ENOENT: no such file or directory, scandir '/workspace/typescript-101/tree-editor/src/browser/README.md'
    at Object.readdirSync (node:fs:1513:3)
    at exports.readdir (/home/gitpod/.nvm/versions/node/v20.9.0/lib/node_modules/generator-theia-extension/node_modules/@mrmlnc/readdir-enhanced/lib/sync/fs.js:18:20)
    at Object.safeCall [as safe] (/home/gitpod/.nvm/versions/node/v20.9.0/lib/node_modules/generator-theia-extension/node_modules/@mrmlnc/readdir-enhanced/lib/call.js:24:8)
    at DirectoryReader.readNextDirectory (/home/gitpod/.nvm/versions/node/v20.9.0/lib/node_modules/generator-theia-extension/node_modules/@mrmlnc/readdir-enhanced/lib/directory-reader.js:78:10)
    at DirectoryReader.stream._read (/home/gitpod/.nvm/versions/node/v20.9.0/lib/node_modules/generator-theia-extension/node_modules/@mrmlnc/readdir-enhanced/lib/directory-reader.js:57:18)
    at Readable.read (node:internal/streams/readable:547:12)
    at readdirSync (/home/gitpod/.nvm/versions/node/v20.9.0/lib/node_modules/generator-theia-extension/node_modules/@mrmlnc/readdir-enhanced/lib/sync/index.js:27:21)
    at Function.readdirSyncStat (/home/gitpod/.nvm/versions/node/v20.9.0/lib/node_modules/generator-theia-extension/node_modules/@mrmlnc/readdir-enhanced/lib/index.js:34:10)
    at ReaderSync.dynamicApi (/home/gitpod/.nvm/versions/node/v20.9.0/lib/node_modules/generator-theia-extension/node_modules/fast-glob/out/providers/reader-sync.js:64:24)
    at ReaderSync.api (/home/gitpod/.nvm/versions/node/v20.9.0/lib/node_modules/generator-theia-extension/node_modules/fast-glob/out/providers/reader-sync.js:56:25)
Emitted 'error' event on Readable instance at:
    at emitErrorNT (node:internal/streams/destroy:151:8)
    at emitErrorCloseNT (node:internal/streams/destroy:116:3)
    at process.processTicksAndRejections (node:internal/process/task_queues:82:21) {
  errno: -2,
  syscall: 'scandir',
  code: 'ENOENT',
  path: '/workspace/typescript-101/tree-editor/src/browser/README.md'
}

[JonasHelming]

I think I have a fix, but I cannot test it, as I cannot reproduce the issue on my machine. Could you maybe see whether this fixes your issue: https://github.com/eclipse-theia/generator-theia-extension/pull/184 You can

• checkout the branch
• npm install
• npm link
• yo theia-extension to test this version

[metadatadriven]

Yes that seems to work. Getting a bunch of warnings, but it creates the extension files:

$ yo theia-extension --standalone
(node:8528) Warning: Accessing non-existent property 'cat' of module exports inside circular dependency
(Use `node --trace-warnings ...` to show where the warning was created)
(node:8528) Warning: Accessing non-existent property 'cd' of module exports inside circular dependency
(node:8528) Warning: Accessing non-existent property 'chmod' of module exports inside circular dependency
(node:8528) Warning: Accessing non-existent property 'cp' of module exports inside circular dependency
(node:8528) Warning: Accessing non-existent property 'dirs' of module exports inside circular dependency
(node:8528) Warning: Accessing non-existent property 'pushd' of module exports inside circular dependency
(node:8528) Warning: Accessing non-existent property 'popd' of module exports inside circular dependency
(node:8528) Warning: Accessing non-existent property 'echo' of module exports inside circular dependency
(node:8528) Warning: Accessing non-existent property 'tempdir' of module exports inside circular dependency
(node:8528) Warning: Accessing non-existent property 'pwd' of module exports inside circular dependency
(node:8528) Warning: Accessing non-existent property 'exec' of module exports inside circular dependency
(node:8528) Warning: Accessing non-existent property 'ls' of module exports inside circular dependency
(node:8528) Warning: Accessing non-existent property 'find' of module exports inside circular dependency
(node:8528) Warning: Accessing non-existent property 'grep' of module exports inside circular dependency
(node:8528) Warning: Accessing non-existent property 'head' of module exports inside circular dependency
(node:8528) Warning: Accessing non-existent property 'ln' of module exports inside circular dependency
(node:8528) Warning: Accessing non-existent property 'mkdir' of module exports inside circular dependency
(node:8528) Warning: Accessing non-existent property 'rm' of module exports inside circular dependency
(node:8528) Warning: Accessing non-existent property 'mv' of module exports inside circular dependency
(node:8528) Warning: Accessing non-existent property 'sed' of module exports inside circular dependency
(node:8528) Warning: Accessing non-existent property 'set' of module exports inside circular dependency
(node:8528) Warning: Accessing non-existent property 'sort' of module exports inside circular dependency
(node:8528) Warning: Accessing non-existent property 'tail' of module exports inside circular dependency
(node:8528) Warning: Accessing non-existent property 'test' of module exports inside circular dependency
(node:8528) Warning: Accessing non-existent property 'to' of module exports inside circular dependency
(node:8528) Warning: Accessing non-existent property 'toEnd' of module exports inside circular dependency
(node:8528) Warning: Accessing non-existent property 'touch' of module exports inside circular dependency
(node:8528) Warning: Accessing non-existent property 'uniq' of module exports inside circular dependency
(node:8528) Warning: Accessing non-existent property 'which' of module exports inside circular dependency
? The extension's type TreeEditor
? The extension's name tree-editor
TreeEditor
Please remember to add the standalone extension manually to your root package.json and to your product, e.g. in browser-app/package.json
   create tree-editor/package.json
   create tree-editor/tsconfig.json
   create tree-editor/src/browser/example-file/example-file-command.ts
   create tree-editor/src/browser/example-file/example-file-contribution.ts
   create tree-editor/src/browser/style/editor.css
   create tree-editor/src/browser/tree/tree-editor-widget.ts
   create tree-editor/src/browser/tree/tree-label-provider.ts
   create tree-editor/src/browser/tree/tree-model-service.ts
   create tree-editor/src/browser/tree/tree-model.ts
   create tree-editor/src/browser/tree/tree-node-factory.ts
   create tree-editor/src/browser/tree/tree-schema.ts
   create tree-editor/README.md
   create tree-editor/src/browser/tree-contribution.ts
   create tree-editor/src/browser/tree-editor-frontend-module.ts
   create tree-editor/src/browser/tree-label-provider-contribution.ts