问题1：Could not signal service com.apple.WebKit.WebContent: 113: Could not find specified service

解决：对我有用的是在info.pist文件中设置App权限

<key>NSAppTransportSecurity</key>

    <dict>

        <!--Not a recommended way, there are better solutions available-->

        <key>NSAllowsArbitraryLoads</key>

        <true/>

    </dict>

问题2:facebook的Invalid OAuth access token signature。

错误代码

打开https://developers.facebook.com/apps应用中心

设置->高级  下的 客户端口令 copy 替换 iOS中info文件：

<key>FacebookClientToken</key>

<string>xxxxxxxxx</string>

重新运行

问题3: flutter doctor检查完之后出现：A network error occurred while checking "https://github.com/": Operation time out 错误。

解决方式：Mac中通过 open /etc/hosts 打开hosts文件把下列全部复制到hosts文件中，保存替换之后重新flutter doctor。

192.30.253.113 github.com

192.30.252.131 github.com

185.31.16.185 github.global.ssl.fastly.net

74.125.237.1 dl-ssl.google.com

173.194.127.200 groups.google.com

192.30.252.131 github.com

185.31.16.185 github.global.ssl.fastly.net

74.125.128.95 ajax.googleapis.com

192.30.255.112  github.com git

185.31.16.184 github.global.ssl.fastly.net

192.30.253.112    github.com

192.30.253.119    gist.github.com

151.101.184.133    assets-cdn.github.com

151.101.184.133    raw.githubusercontent.com

151.101.184.133    gist.githubusercontent.com

151.101.184.133    cloud.githubusercontent.com

151.101.184.133    camo.githubusercontent.com

151.101.184.133    avatars0.githubusercontent.com

151.101.184.133    avatars1.githubusercontent.com

151.101.184.133    avatars2.githubusercontent.com

151.101.184.133    avatars3.githubusercontent.com

151.101.184.133    avatars4.githubusercontent.com

151.101.184.133    avatars5.githubusercontent.com

151.101.184.133    avatars6.githubusercontent.com

151.101.184.133    avatars7.githubusercontent.com

151.101.184.133    avatars8.githubusercontent.com