Question

我有一个看似简单的npm脚本，但是该脚本失败了，但我似乎无法弄清原因。我在全球范围内安装了以下软件包：

+-- ts-node@8.3.0
+-- tsconfig-paths@3.8.0
+-- typeorm-model-generator@0.3.4
`-- typescript@3.5.2

当我从命令行运行ts-node时，它将按预期运行。

在我的package.json文件中，我有：

"scripts": {
    "ts_test": "ts-node"
},

运行npm run ts_test时出现以下错误：

SyntaxError: Unexpected token } in JSON at position 581
    at JSON.parse (<anonymous>)
    at parse (...\node_modules\tsconfig\src\tsconfig.ts:195:15)
    at readFileSync (...\node_modules\tsconfig\src\tsconfig.ts:181:10)
    at Object.loadSync (...\node_modules\tsconfig\src\tsconfig.ts:151:18)
    at readConfig (...\node_modules\ts-node\src\index.ts:425:18)
    at Object.register (...\node_modules\ts-node\src\index.ts:189:18)
    at Object.<anonymous> (...\node_modules\ts-node\src\_bin.ts:140:17)
    at Module._compile (internal/modules/cjs/loader.js:721:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:732:10)
    at Module.load (internal/modules/cjs/loader.js:620:32)

任何有关可能导致此错误或如何对其进行进一步调试的建议都是有帮助的。

更新：以下是我的tsconfig文件：

{
  "compilerOptions": {
    "lib": [
      "es2017"
    ],    
    "baseUrl": "/",
    "noImplicitReturns": true,
    "noImplicitThis": true,
    "strictNullChecks": true,
    "strictPropertyInitialization": false,
    "moduleResolution": "node",
    "sourceMap": true,
    "target": "es2017",
    "outDir": "lib",
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
    "esModuleInterop": true,
  },
  "exclude": [
    "node_modules"
  ]
}

Answer 1

JSON规范不支持尾随逗号。因此，您的tsconfig.json解析失败。将您的tsconfig.json更改为

{
  "compilerOptions": {
    "lib": [
      "es2017"
    ],    
    "baseUrl": "/",
    "noImplicitReturns": true,
    "noImplicitThis": true,
    "strictNullChecks": true,
    "strictPropertyInitialization": false,
    "moduleResolution": "node",
    "sourceMap": true,
    "target": "es2017",
    "outDir": "lib",
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "esModuleInterop": true
  },
  "exclude": [
    "node_modules"
  ]
}

仅ts节点的npm脚本失败

1 个答案: