Arguments: 
  C:\Program Files\nodejs\node.exe C:\Users\dell\AppData\Roaming\npm\node_modules\yarn\bin\yarn.js run dev-SDK

PATH: 
  C:\Program Files\Git\mingw64\bin;C:\Program Files\Git\usr\bin;C:\Users\dell\bin;C:\Program Files (x86)\Common Files\Intel\Shared Libraries\redist\intel64_win\compiler;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0;C:\Windows\System32\OpenSSH;C:\Program Files\TortoiseSVN\bin;C:\Program Files\nodejs;C:\Program Files\Git\cmd;C:\Program Files\NVIDIA Corporation\NVIDIA NvDLISR;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files\dotnet;C:\Program Files\Microsoft SQL Server\130\Tools\Binn;C:\Program Files\Microsoft SQL Server\Client SDK\ODBC\170\Tools\Binn;C:\Users\dell\AppData\Local\Programs\Python\Python39\Scripts;C:\Users\dell\AppData\Local\Programs\Python\Python39;C:\Users\dell\AppData\Local\Microsoft\WindowsApps;C:\Users\dell\AppData\Roaming\npm;C:\Users\dell\AppData\Local\Programs\Microsoft VS Code\bin;C:\Users\dell\.dotnet\tools

Yarn version: 
  1.22.10

Node version: 
  14.15.4

Platform: 
  win32 x64

Trace: 
  SyntaxError: F:\ruihua\open-map-service-web\package.json: Unexpected token 
   in JSON at position 43
      at JSON.parse (<anonymous>)
      at C:\Users\dell\AppData\Roaming\npm\node_modules\yarn\lib\cli.js:1625:59
      at Generator.next (<anonymous>)
      at step (C:\Users\dell\AppData\Roaming\npm\node_modules\yarn\lib\cli.js:310:30)
      at C:\Users\dell\AppData\Roaming\npm\node_modules\yarn\lib\cli.js:321:13

npm manifest: 
  {
    "name": "rh3dsdk",
    "version": "1.0.27
  
    ",
    "description": "",
    "main": "index.js",
    "directories": {
      "doc": "docs",
      "test": "test"
    },
    "scripts": {
      "build-SDK": "webpack --config webpack.build.js --progress --projectName=SDK",
      "dev-SDK": "webpack-dev-server --config webpack.dev.js --projectName=SDK",
      "esdoc": "./node_modules/.bin/esdoc"
    },
    "author": "",
    "license": "ISC",
    "devDependencies": {
      "@babel/plugin-proposal-class-properties": "^7.12.1",
      "@babel/plugin-syntax-class-static-block": "^7.12.1",
      "@purtuga/esm-webpack-plugin": "^1.5.0",
      "babel-core": "^6.26.0",
      "babel-loader": "^7.1.2",
      "babel-plugin-transform-runtime": "^6.23.0",
      "babel-preset-env": "^1.6.1",
      "babel-preset-es2015": "^6.24.1",
      "babel-preset-stage-0": "^6.24.1",
      "clean-webpack-plugin": "^3.0.0",
      "copy-webpack-plugin": "^6.3.0",
      "css-loader": "^5.0.1",
      "esdoc": "^1.1.0",
      "esdoc-standard-plugin": "^1.0.0",
      "html-webpack-plugin": "^4.5.0",
      "less": "^4.0.0",
      "less-loader": "^7.1.0",
      "open-browser-webpack-plugin": "^0.0.5",
      "resource-loader": "^4.0.0-rc4",
      "save": "^2.4.0",
      "style-loader": "^2.0.0",
      "uglifyjs-webpack-plugin": "^2.2.0",
      "webpack": "^4.41.4",
      "webpack-cli": "^3.3.10",
      "webpack-dev-server": "^3.11.0",
      "webpackbar": "^5.0.0-3"
    },
    "dependencies": {
      "signals": "^1.0.0",
      "three": "^0.127.0",
      "@tweenjs/tween.js": "^18.6.4"
    }
  }

yarn manifest: 
  No manifest

Lockfile: 
  No lockfile