Google:Error in event handler for runtime.onInstalled: TypeError: Cannot read property 'sync'...

Love The Way You Lie 2024-04-19 12:01 49阅读 0赞

## 开发谷歌插件出现错误 ##

### 错误信息： ###

Error in event handler for runtime.onInstalled: TypeError: Cannot read property 'sync' of undefined

### 错误原因 ###

根据官网文档在引入后出错

*  manifest.json

{ 
      "name": "Getting Started Example",
      "version": "1.0",
      "description": "Build an Extension!",
      "background" : {  "scripts" : [ "background.js"],"persistent" : false },
      "manifest_version": 2
    }

*  background.js

// Copyright 2018 The Chromium Authors. All rights reserved.
    // Use of this source code is governed by a BSD-style license that can be
    // found in the LICENSE file.
    
    'use strict';
    
    chrome.runtime.onInstalled.addListener(function() { 
      chrome.storage.sync.set({ color: '#3aa757'}, function() { 
        console.log("The color is green.");
      });
    });

### 解决办法 ###

接着看文档后面说明了需要在 ***manifest.json*** 文件中加入权限注册

> Most APIs, including the storage API, must be registered under the “permissions” field in the manifest for the extension to use them.

更改 ***manifest.json*** 文件如下解决问题

{ 
      "name": "Getting Started Example",
      "version": "1.0",
      "permissions": ["storage"],
      "description": "Build an Extension!",
      "background" : {  "scripts" : [ "background.js"],"persistent" : false },
      "manifest_version": 2
    }