Error processing request. No Project (tsconfig.json in some subdirectories)

[Nelson Martell]

Context

It's an Angular 12/Ionic 6 project with TypeScript 4.3.

I have different tsconfig.json files:

tsconfig.json (root)

{
  "compileOnSave": false,
  "exclude": ["node_modules", "www", "android", "ios", "**/*.spec.ts"],
  "compilerOptions": {
    "baseUrl": "./",
    "outDir": "./dist/out-tsc",
    "sourceMap": true,
    "declaration": false,
    "downlevelIteration": true,
    "experimentalDecorators": true,
    "resolveJsonModule": true,
    "moduleResolution": "node",
    "importHelpers": true,
    "skipLibCheck": true,
    "allowSyntheticDefaultImports": true,
    "target": "es2015",
    "module": "es2020",
    "lib": ["es2018", "dom"]
  },
  "angularCompilerOptions": {
    "enableI18nLegacyMessageIdFormat": false,
    "strictInjectionParameters": true,
    "strictInputAccessModifiers": true,
    "strictTemplates": true
  }
}

src/tsconfig.json

{
  "extends": "../tsconfig.json",
  "compilerOptions": {
    "baseUrl": "./",
    "outDir": "../out-tsc/app",
    "types": ["node", "google.maps"],
    "paths": {
      "@app/*": ["app/*"],
      "@env/*": ["environments/*"],
      "@interfaces/*": ["interfaces/*"],
      "@directives/*": ["directives/*"],
      "@vendor/*": ["vendor/*"]
    }
  },
  "files": ["main.ts", "polyfills.ts"]
}

Description

When I'm on src\app\guards\authenticated.guard.ts file, it seems like is unable to find the correct tsconfig.json:

Click to show tooltip error in authenticated.guard.ts

Click to show error logged in console

Error: No Project.
    at Object.ThrowNoProject ({PROJECT}\node_modules\typescript\lib\tsserver.js:156265:23)
    at IOSession.Session.getFileAndLanguageServiceForSyntacticOperation ({PROJECT}\node_modules\typescript\lib\tsserver.js:164389:42)
    at IOSession.Session.getNavigationTree ({PROJECT}\node_modules\typescript\lib\tsserver.js:164745:31)
    at Session.handlers.ts.Map.ts.getEntries._a.<computed> ({PROJECT}\node_modules\typescript\lib\tsserver.js:163520:61)
    at {PROJECT}\node_modules\typescript\lib\tsserver.js:165210:88
    at IOSession.Session.executeWithRequestId ({PROJECT}\node_modules\typescript\lib\tsserver.js:165201:28)
    at IOSession.Session.executeCommand ({PROJECT}\node_modules\typescript\lib\tsserver.js:165210:33)
    at IOSession.Session.onMessage ({PROJECT}\node_modules\typescript\lib\tsserver.js:165236:35)
    at Interface.<anonymous> ({PROJECT}\node_modules\typescript\lib\tsserver.js:167833:31)
    at Interface.emit (events.js:223:5)
    at Interface._onLine (readline.js:315:10)
    at Interface._normalWrite (readline.js:460:12)
    at Socket.ondata (readline.js:172:10)
    at Socket.emit (events.js:223:5)
    at addChunk (_stream_readable.js:309:12)
    at readableAddChunk (_stream_readable.js:290:11)
    at Socket.Readable.push (_stream_readable.js:224:10)
    at Pipe.onStreamRead (internal/stream_base_commons.js:181:23)
    at ln.resolve ({USER}\.atom\packages\atom-typescript\dist\main.js:9:109342)
    at vn.onMessage ({USER}\.atom\packages\atom-typescript\dist\main.js:9:110966)
    at vn.emit (events.js:223:5)
    at addChunk (_stream_readable.js:309:12)
    at readableAddChunk (_stream_readable.js:290:11)
    at vn.Readable.push (_stream_readable.js:224:10)
    at vn.Transform.push (_stream_transform.js:150:32)
    at vn._transform ({USER}\.atom\packages\atom-typescript\dist\main.js:9:113361)
    at vn.Transform._read (_stream_transform.js:189:10)
    at vn.Transform._write (_stream_transform.js:177:12)
    at doWrite (_stream_writable.js:435:12)
    at writeOrBuffer (_stream_writable.js:419:5)
    at vn.Writable.write (_stream_writable.js:309:11)
    at un.ondata (_stream_readable.js:728:22)
    at un.emit (events.js:223:5)
    at addChunk (_stream_readable.js:309:12)
    at readableAddChunk (_stream_readable.js:290:11)
    at un.Readable.push (_stream_readable.js:224:10)
    at un.Transform.push (_stream_transform.js:150:32)
    at un._pushBuffer ({USER}\.atom\packages\atom-typescript\dist\main.js:9:108237)
    at un._transform ({USER}\.atom\packages\atom-typescript\dist\main.js:9:108067)
    at un.Transform._read (_stream_transform.js:189:10)
    at un.Transform._write (_stream_transform.js:177:12)
    at doWrite (_stream_writable.js:435:12)
    at writeOrBuffer (_stream_writable.js:419:5)
    at un.Writable.write (_stream_writable.js:309:11)
    at Socket.ondata (_stream_readable.js:728:22)
    at Socket.emit (events.js:223:5)
    at addChunk (_stream_readable.js:309:12)
    at readableAddChunk (_stream_readable.js:290:11)
    at Socket.Readable.push (_stream_readable.js:224:10)
    at Pipe.onStreamRead (internal/stream_base_commons.js:181:23) "{PROJECT}\src\app\guards\authenticated.guard.ts"

But the weird thing is that, on src\app\auth\guards\guest.guard.ts file, I don't get that error:

---

I tried suggestion from #1589 (comment), but it does not work. 😞

[Nelson Martell]

Seems like by importing manually that file this error goes away, but is not autocompleted to be imported in another file.

[Nelson Martell]

This issue is caused when tsconfig.json does not include the specific files (for example, tsconfig.app.jso does exclude *.spec.ts files).

Since 3.9 there is a Solution Style:

// tsconfig.json
{
    "files": [],
    "references": [
        { "path": "./tsconfig.shared.json" },
        { "path": "./tsconfig.frontend.json" },
        { "path": "./tsconfig.backend.json" },
    ]
}

This file that really does nothing but manage other project files is often called a “solution” in some environments. Here, none of these tsconfig.*.json files get picked up by the server, but we’d really like the language server to understand that the current .ts file probably belongs to one of the mentioned projects in this root tsconfig.json.