运行react-native链接时会出现此错误,

它说,

rnpm-install ERR！链接时似乎出了问题.错误：无法读取null的属性“UIAppFonts”

我有同样的问题.我在ios目录中被Info.plist文件意外删除了.恢复它,解决了我的问题.

var ns = (wsdl.documentElement.attributes["targetNamespace"] + "" == "undefined") ?
wsdl.documentElement.attributes.getNamedItem("targetNamespace").nodeValue :  
wsdl.documentElement.attributes["targetNamespace"].value;

Accept: Access-Control-Allow-Origin

chrome.exe --disable-web-security

我有Angular 2的问题.当我想启动服务器它得到这个：

$ng serve
Cannot read property 'config' of null
TypeError: Cannot read property 'config' of null
at Class.run (C:\Users\damien\Desktop\application\node_modules\@angul ar\cli\tasks\serve.js:22:63)
at check_port_1.checkPort.then.port (C:\Users\damien\Desktop\application\node_modules\@angular\cli\commands\serve.js:103:26)
at process._tickCallback (internal/process/next_tick.js:103:7)

我重新安装了CLI,其他任何工作都没有.我可能是json文件的东西？

我找到了解决方案！ 在我的情况下,我将项目移动到另一个目录. 有一个名为.angular-cli的隐藏文件 在旧项目中显示隐藏文件并复制此文件并将其粘贴到新的扩展中.这解决了我的问题.

我是angular2的新手.我已下载angular 2项目并尝试设置.我安装了角度cli 1.0.0-rc.2,当我正在服务时,它显示以下错误：

Cannot read property ‘config’ of null TypeError: Cannot read property
‘config’ of null
at Class.run (D:\Sumit\AgulaNew\admin\node_modules\@angular\cli\tasks\serve.js:22:63)
at check_port_1.checkPort.then.port (D:\Sumit\AgulaNew\admin\node_modules\@angular\cli\commands\serve.js:103:26)
at
at process._tickCallback (internal/process/next_tick.js:188:7)

今天早上我有同样的错误.

您可能使用Finder或Explorer将项目从一个文件夹复制到另一个文件夹.如果是这样,则缺少文件.angular-cli.json.

如果您使用的是Mac,请使用命令ls -a列出隐藏文件.你会注意到.angular-cli.json会在那里.只需将文件复制到新位置,您的问题就会得到解决.

最近我的应用程序从Angular 2.3.0升级到Angular 4.0.3.在此过程中还升级了angular-cli.如果项目克隆到新目录,则抛出：

Cannot read property ‘config’ of null TypeError: Cannot read property
‘config’ of null
at Class.run (/Users/hyadav/Documents/projects/web-app/node_modules/@angular/cli/tasks/build.js:16:56)
at Class.run (/Users/hyadav/Documents/projects/web-app/node_modules/@angular/cli/commands/build.js:143:26)
at Class. (/Users/hyadav/Documents/projects/web-app/node_modules/@angular/cli/ember-cli/lib/models/command.js:134:17)
at process._tickCallback (internal/process/next_tick.js:109:7)

的package.json

"scripts": {
    "ng": "ng","start": "ng serve","build": "ng build","test": "ng test","lint": "ng lint","e2e": "ng e2e"
  },"private": true,"dependencies": {
    "@angular/animations": "^4.0.3","@angular/cli": "^1.0.1","@angular/common": "^4.0.3","@angular/compiler": "^4.0.3","@angular/compiler-cli": "^4.0.3","@angular/core": "^4.0.3","@angular/forms": "^4.0.3","@angular/http": "^4.0.3","@angular/material": "^2.0.0-beta.3","@angular/platform-browser": "^4.0.3","@angular/platform-browser-dynamic": "^4.0.3","@angular/platform-server": "^4.0.3","@angular/router": "^4.0.3","core-js": "^2.4.1","hammerjs": "^2.0.8","rxjs": "^5.2.0","typescript": "^2.2.2","zone.js": "^0.8.4"
  },"devDependencies": {
    "@angular/cli": "^1.0.1","@angular/compiler-cli": "^2.4.0","@types/jasmine": "2.5.38","@types/node": "~6.0.60","codelyzer": "~2.0.0","jasmine-core": "~2.5.2","jasmine-spec-reporter": "~3.2.0","karma": "~1.4.1","karma-chrome-launcher": "~2.0.0","karma-cli": "~1.0.1","karma-coverage-istanbul-reporter": "^0.2.0","karma-jasmine": "~1.1.0","karma-jasmine-html-reporter": "^0.2.2","protractor": "~5.1.0","ts-node": "~2.0.0","tslint": "~4.4.2","typescript": "~2.2.2"
 }

这是Angular v5之前的工作解决方案,因为在v6内部,文件的位置更改为angular.json,并且还更改了内容

创建一个名为.angular-cli.json的新文件并插入：

{
  "$schema": "./node_modules/@angular/cli/lib/config/schema.json","project": {
    "name": "PROJECT_NAME"
  },"apps": [
    {
      "root": "src","outDir": "dist","assets": [
        "assets","favicon.ico"
      ],"index": "index.html","main": "main.ts","polyfills": "polyfills.ts","test": "test.ts","tsconfig": "tsconfig.app.json","testTsconfig": "tsconfig.spec.json","prefix": "app","styles": [
        "styles.css"
      ],"scripts": [],"environmentSource": "environments/environment.ts","environments": {
        "dev": "environments/environment.ts","prod": "environments/environment.prod.ts"
      }
    }
  ],"e2e": {
    "protractor": {
      "config": "./protractor.conf.js"
    }
  },"lint": [
    {
      "project": "src/tsconfig.app.json"
    },{
      "project": "src/tsconfig.spec.json"
    },{
      "project": "e2e/tsconfig.e2e.json"
    }
  ],"test": {
    "karma": {
      "config": "./karma.conf.js"
    }
  },"defaults": {
    "styleExt": "css","component": {}
  }
}

如果从angular-cli创建新项目,您还可以找到此json的副本.