借鉴了其他人方法。https://segmentfault.com/a/1190000022325350
第一步：terminal，查看GoLand启动错误日志
/Applications/GoLand.app/Contents/MacOS/goland输出：
2021-04-21 16:57:18.661 goland[73252:3593251] allVms required 1.8*,1.8+
2021-04-21 16:57:18.664 goland[73252:3593254] Current Directory: /Applications/MxSrvs/www/opencrm/tp5
2021-04-21 16:57:18.664 goland[73252:3593254] Value of GOLAND_VM_OPTIONS is (null)
2021-04-21 16:57:18.664 goland[73252:3593254] Processing VMOptions file at /Users/Name/Library/Application Support/JetBrains/GoLand2020.3/goland.vmoptions
2021-04-21 16:57:18.665 goland[73252:3593254] Done
OpenJDK 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release.
Error opening zip file or JAR manifest missing : /Applications/GoLand.app/Contents/bin/jetbrains-agent.jar
Error occurred during initialization of VM
agent library failed to init: instrument可以看出Error是缺少jetbrains-agent.jar。原因：曾经安装过盗版软件。
解决方案：启动配置文件删除这一行。配置文件在：
/Users/你的名称/Library/Application\ Support/JetBrains/GoLand2020.3/goland.vmoptions删除这一行
/Applications/GoLand.app/Contents/bin/jetbrains-agent.jar最后重新启动成功。
PS：尽量买正版啊