xcode 9模拟器错误，无法启动启动的模拟器，无法响应mac os sierra [英] xcode 9 simulator error unable to boot the simulator launchd failed to respond mac os sierra

问题描述

xcode 9模拟器错误，无法启动启动的模拟器，无法响应mac os sierra

xcode 9 simulator error unable to boot the simulator launchd failed to respond mac os sierra

我尝试从派生数据中删除内容，重新启动Xcode，卸载并安装xcode等.

I ave tried deleting contents from derived data, restarting Xcode , Uninstall and install of xcode etc.

推荐答案

在这种情况下，launchd在尝试启动时崩溃.

In this case, launchd is crashing when trying to launch.

这可能是由于删除了/private/tmp文件夹导致的.

This could be as a result of deleting the /private/tmp folder.

要解决此问题，我在终端上键入了以下命令:

To resolve this, I typed the following commands on my terminal:

sudo mkdir /private/tmp 
sudo chmod 1777 /private/tmp

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