flutter个人踩坑

第一个错误：

[!] Netwindex.php/tags-1038.html" >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.com185.31.16.185 github.global.ssl.fastly.net 74.125.128.95 ajax.googleapis.com 192.30.255.112  github.com git185.31.16.184 github.global.ssl.fastly.net 192.30.253.112    github.com 192.30.253.119    gist.github.com151.101.184.133    assets-cdn.github.com151.101.184.133    raw.githubusercontent.com151.101.184.133    gist.githubusercontent.com151.101.184.133    cloud.githubusercontent.com151.101.184.133    camo.githubusercontent.com151.101.184.133    avatars0.githubusercontent.com151.101.184.133    avatars1.githubusercontent.com151.101.184.133    avatars2.githubusercontent.com151.101.184.133    avatars3.githubusercontent.com151.101.184.133    avatars4.githubusercontent.com151.101.184.133    avatars5.githubusercontent.com151.101.184.133    avatars6.githubusercontent.com151.101.184.133    avatars7.githubusercontent.com151.101.184.133    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