Angular Nativescript:组件拆分导致无法读取属性中出错'；0'；未定义的

我有一个LoginComponent，我想为web和mobile拆分它。一旦我克隆并创建login.component.tns.ts并运行tns build android--bundle，我就会遇到以下错误

Entrypoint bundle = runtime.js vendor.js bundle.js
[./app.css] 1.2 KiB {bundle} [built]
[./main.tns.ts] 1.13 KiB {bundle} [built]
[~/package.json] external "~/package.json" 42 bytes {bundle} [optional] [built]
    + 327 hidden modules

ERROR in Cannot read property '0' of undefined
Webpack compilation complete.
Executing webpack failed with exit code 2.

如果删除login.component.tns.ts文件，构建工作正常。这里有什么指示吗

app/tsconfig.app.json

{
  "extends": "../tsconfig.json",
  "compilerOptions": {
    "outDir": "../out-tsc/app",
    "types": [
      "node"
    ],
    "paths": {
      "@src/*": [
        "src/*.web",
        "src/*"
      ]
    }
  },
  "exclude": [
    "test.ts",
    "**/*.spec.ts"
  ],
  "files": [
    "src/main.ts",
    "src/polyfills.ts"
  ]
}

tsconfig.tns.json（不在应用程序文件夹内，但在项目文件夹内）

{
  "extends": "./tsconfig.json",
  "compilerOptions": {
    "module": "ESNext",
    "moduleResolution": "node",
    "experimentalDecorators": true,
    "skipLibCheck": true,
    "baseUrl": ".",
    "paths": {
      "@src/*": [
        "src/*.tns.ts",
        "src/*.ts"
      ]
    }
  },
  "files": [
    "src/main.tns.ts"
  ]
}