之前yarn配了代理,但是速度不稳定,所以换成了淘宝源。
然后发现速度还是很慢,有一天忘了开代理,结果依赖完全不能下载了,报错:info There appears to be trouble with your network connection. Retrying.…
1、Command PhaseScriptExecution failed with a nonzero exit code
2、In /Users/XX/XX/XX/fayuan-mediator-app-rn/ios/Pods/CocoaLibEvent/lib/libevent.a(buffer.o), building for iOS Simulator, but linking in object file built for iOS, file /Users/XX/XX/XX/fayuan…
java 中的线程是映射到操作系统原生线程之上的,如果要阻塞或唤醒一个线程就需要操作系统的帮忙,这就需要从用户态转换到核心态。状态转换需要花费很多时间,如下代码所示:
private Object lock new Object();private int value;p…