flutter个人踩坑

第一个错误：

[!] Netwindex.php/tags-1038.html" class="superseo">ork resources     X A network error occurred while checking "https://github.com/": 信号灯超时时间已到

解决方法：在C:\Windows\System32\drivers\etc\hosts里面保存以下内容

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

这个搞定以后flutter doctor时出错时不出错的

第二个错误：

andoird studio打叉，直接去官网下载就好了

第三个错误：

andoird studio tools-chain打叉，按照教程去安装android sdk，对比一下，把没选中的安装上去就好，这个页面在SDK Manager，要是在安装过程中出现cmdline-tools安装失败的情况，考虑一下是不是网络问题（我换了个网络成功了）。然后flutter doctor，按照提示flutter ...licenses，一路按y就行。

结束后我的工具链是这样的