Experimental Decorator error even after specifying in tsconfig.json

[dbaeumer]

From @rajeevkumarsharma on January 1, 2016 15:7

{
  "compilerOptions": {
    "target": "es5",
    "module": "commonjs",
    "noEmitOnError": false,
    "rootDir": ".",
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "sourceMap": false,
    "sourceRoot": "",
    "inlineSourceMap": false,
    "inlineSources": false
  },
  "files": [
    "app/app.ts"
  ]
}

It still show error on decorator class

Copied from original issue: microsoft/vscode#1730

[dbaeumer]

This works for me using the latest 0.10.6 build. See attached screen shot:

@rajeevkumarsharma pls ping me if you can reproduce using 0.10.6. Steps would be helpful as well.

[dbaeumer]

From @rajeevkumarsharma on January 7, 2016 6:43

Hi Dirk,

It still persist with 0.10.6 on Linux. Here are some screenshots attacked.

Thanks

[dbaeumer]

Duplicates #1740

[dbaeumer]

Closing

[dbaeumer]

From @SergeySolonko on May 20, 2016 12:57

+1
Have same problem.

VScode Version 1.1.1 (1.1.1)
MacOS X El Capitan

[dbaeumer]

From @AdamWillden on May 20, 2016 14:48

I also get the same issue but it is inconsistent (1.1.1 Windows)

[dbaeumer]

From @mosho1 on May 22, 2016 10:58

+1, (1.1.1 on windows 10)

[dbaeumer]

Moving to TS team since it still shows up on 1.1.1 which uses 1.8.9 (tsserver)

[mhegazy]

From these snapshots, looks like the file you are getting the error in is not part of the tsconfig.json file.

rest.ts does not seem to be mapped by the tsconfig.json specified, which only lists app/app.ts. if this is the issue, then it is not going to pick up this tsconfig.json as a configuration source.

At this point i do not have much details to piece together a repro. please provide a project i can use to reproduce the issue.

[serhiisol]

try with this configuration

{
  "compileOnSave": false,
  "compilerOptions": {
    "declaration": false,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "module": "commonjs",
    "moduleResolution": "node",
    "noEmitOnError": true,
    "noImplicitAny": false,
    "outDir": "../dist/",
    "rootDir": ".",
    "sourceMap": true,
    "target": "es5",
    "inlineSources": true
  },

  "files": [
    "main.ts",
    "typings.d.ts"
  ]
}

I've played a lot with different versions of config, no luck

[serhiisol]

@dbaeumer I've tried to change typescript.tsdk

"typescript.tsdk": "/usr/local/lib/node_modules/typescript/lib"

I've used

$ tsc --version
Version 1.8.10

No luck, are you sure that this issue is related to tsserver ?

[kitsonk]

From the screen shots, the file that is showing the errors is ./app/lib/rest.ts but in both the config above and the screenshots, the "files": [] does not include the the displayed file. When a file is not included in the "files" array, they are not part of the project, and vscode will apply default compiler options, which has experimental decorators as false, which would display the errors visible in the screenshot. I highly doubt this has anything to do with tsserver and instead has to do with likely an improperly configured project.

[serhiisol]

ok, what about next example:

[rajeev-kumar-sharma]

Hi,

You may use exclude instead files (where u need to put all files reference)

If you want to use files options only then add all files along with scr/main.ts for those you want to apply these settings .

Here you have added only two files and setting are applied to these files only.

[mhegazy]

@SergeySolonko i can not reproduce this still.. i have your tsconfig.json, and a file and still can not see any issues.

Please provide a repro project the exhibits the issue.

[serhiisol]

@mhegazy https://github.com/serhiiso/vscode-test try this one

[mhegazy]

Thanks. i see the issue now. the problem is in your tsconfig.json there is a missing file. "typings.d.ts". the file does not exist which causes a problem in loading the project. we have fixed this issue in nightly builds, here is the issue: #8334, and the PR: #8504.

Removing the missing file from tsconfig.json, should resolve the issue, or updating to the latest nightly, see https://github.com/Microsoft/TypeScript-Handbook/blob/master/pages/Nightly%20Builds.md#visual-studio-code

[mhegazy]

Closing in favor of #8334

[serhiisol]

That doesn't make sense, VSCode should read tsconfig and enable all specified options, It shouldn't be related to the project files.
Other words: if experimentalDecorators option is enabled - VSCode should hide that error

[mhegazy]

it is not about VSCode. this is coming from the ts side of things.

The server tries to load the config file. before #8504, if a file was not found, it failed to read the config file, which was a bug. the bug should be fixed in the latest nighties, and it should work now.