环境上下文中的“const”初始值设定项必须是字符串或数字文本或文本枚举引用

Question

只需将Nativescript升级到版本7并得到下面的错误，不确定为什么nativescript会抛出这个错误。

这是我的package.json：

"dependencies": {
    "@angular/animations": "^10.2.4",
    "@angular/common": "^10.2.4",
    "@angular/compiler": "^10.2.4",
    "@angular/core": "^10.2.4",
    "@angular/forms": "^10.2.4",
    "@angular/platform-browser": "^10.2.4",
    "@angular/platform-browser-dynamic": "^10.2.4",
    "@angular/router": "^10.2.4",
    "@nativescript/angular": "^10.1.7",
    "@nativescript/core": "^7.1.0",
    "@nativescript/webpack": "^4.0.0",
    "@nstudio/nativescript-cardview": "^2.0.1",
    "@types/jest": "^24.0.18",
    "base-64": "^0.1.0",
    "js-base64": "^2.5.2",
    "nativescript-admob": "^4.0.0",
    "nativescript-clipboard": "^2.0.0",
    "nativescript-drop-down": "^5.0.6",
    "nativescript-pdf-view": "^2.4.3",
    "nativescript-permissions": "^1.3.11",
    "nativescript-plugin-firebase": "^10.6.3",
    "nativescript-theme-core": "^1.0.6",
    "nativescript-toast": "^2.0.0",
    "nativescript-ui-calendar": "^7.0.2",
    "nativescript-ui-listview": "^9.0.4",
    "nativescript-ui-sidedrawer": "^9.0.3",
    "reflect-metadata": "~0.1.12",
    "rxjs": "^6.4.0",
    "zone.js": "^0.10.3"
  },
  "devDependencies": {
    "@angular-devkit/schematics": "^10.2.1",
    "@angular/cli": "^10.2.1",
    "@angular/compiler-cli": "^10.2.4",
    "@nativescript/android": "7.0.1",
    "@nativescript/schematics": "^10.1.0",
    "@nativescript/types": "^7.0.4",
    "@ngtools/webpack": "^10.2.1",
    "@schematics/angular": "^10.2.1",
    "@schematics/update": "^0.11.4",
    "node-sass": "^4.13.1",
    "typescript": "^3.9.7"
  },

我也尝试了TypeScript4，但是产生了更多的错误。

任何人在下面遇到这个问题：

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Answer 1

确保您的tsconfig.json包含

"skipLibCheck": true

如果你正在生成一个新的项目，但是在更新过程中没有被添加，那么它看起来是默认的。添加它为我解决了这个问题，现在我可以毫无问题地编译应用程序了。

下面是我的tsconfig文件的一个示例：

{
  "compilerOptions": {
    "module": "esnext",
    "target": "es2017",
    "moduleResolution": "node",
    "experimentalDecorators": true,
    "emitDecoratorMetadata": true,
    "noEmitHelpers": true,
    "noEmitOnError": true,
    "skipLibCheck": true,
    "resolveJsonModule": true,
    "esModuleInterop": true,
    "lib": [
      "es2017",
      "dom"
    ],
    "baseUrl": ".",
    "paths": {
      "~/*": [
        "src/*"
      ]
    }
  },
  "exclude": [
    "node_modules",
    "platforms"
  ]
}

Answer 2

这是一个Nativescript错误。该解决方案在5天前实施，但自11天以来就没有新的版本。在此期间，您可以自己修复它。以下是解决方案：https://github.com/NativeScript/NativeScript/pull/9136/commits/619fd49186f58d4d11d0554458af1210108c89d1