Unable to the boot Simulator! Mac is now "Coretelephony Trace File Error",

OS X after upgrading to El Capitan, providing a security-related pattern called SIP (System Integrity Protection), also known as rootless mode, this new feature is in the security of the enhanced OS X, which prohibits the software from being rooted in the Run on Mac, and in the upgrade to OS X 10.11 You may see that some applications are disabled so that/usr/bin folders we cannot read and write properly, but also cause some programs (such as homebrew and Git) to perform exceptions in command-line mode.

SIP presets are developed, and the following steps can turn sip off:

1. Restart your Mac, press and hold the Command+r key until the Apple logo appears, and enter Recovery Mode

2. Click Utilities > Terminal

3, enter the Csrutil disable in Terminal, then return

4. Restart your MAC

This allows the SIP security setting to be turned off, and if you want to re-enable the security setting, repeat the above steps and replace the command with Csrutil enable in the third step.

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Unable to the boot Simulator! Mac is now "Coretelephony Trace File Error",