NativeScript Angular Error TS5060: Option 'paths' cannot be used without specifying '--baseUrl' option

Question

I have freshly installed Nativescript Angular project using:

ng new --collection=@nativescript/schematics my-mobile-app

command I get from nativescript-schematics

and right after the fresh installation I try it to run on android emulator.

tns run android

then I get this error during compiling:

Searching for devices...
Preparing project...
File change detected. Starting incremental webpack compilation...

webpack is watching the files…

Hash: c018afa003f9a5a7d1cd
Version: webpack 4.44.2
Time: 4451ms
Built at: 11/05/2020 1:54:33 PM
 3 assets
Entrypoint bundle = runtime.js vendor.js bundle.js
[./app.css] 1.05 KiB {bundle} [built]
[./main.ts] 1.13 KiB {bundle} [built]
[~/package.json] external "~/package.json" 42 bytes {bundle} [optional] [built]
    + 331 hidden modules

ERROR in error TS5060: Option 'paths' cannot be used without specifying '--baseUrl' option.

RcoderNY · Accepted Answer · 2020-11-08 21:40:02Z

I also got the same error. The way I fixed it was to add "baseUrl": ".", to tsconfig.json

So your tsconfig.json it ends up looking like:

{
  "compilerOptions": {
    "module": "ESNext",
    "target": "es2017",
    "moduleResolution": "node",
    "experimentalDecorators": true,
    "emitDecoratorMetadata": true,
    "skipLibCheck": true,
    "noEmitHelpers": true,
    "noEmitOnError": true,
    "baseUrl": ".",          // add this line
    "lib": [
      "es2017",
      "dom",
      "es6"
    ]
  },
  "exclude": [
    "node_modules",
    "platforms"
  ]
}

BUT then the next error you might get is:

cp: no such file or directory: E:/NativeScript/my-app/App_Resources/Android/*

So to fix that I moved the App_Resources folder, which was in the app folder, up one level like:

from my-app/app/App_Resources
to my-app/App_Resources

Then it finally ran correctly!

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