问题
When I running an application shared extension from XCode run button and then trying to share files, XCode shows the below error frequently. Anyone have any idea whats causing it?
Error: "cannot attach to process due to System Integrity Protection"
回答1:
System Integrity Protection(SIP) aka rootless is a new security feature in OS X 10.11. By default it disables even the administrator to access/modify the root. Follow these steps to disable SIP:
- Restart your Mac.
- Before OS X starts up, hold down Command-R and keep it held down until you see an Apple icon and a progress bar. Release. This boots you into Recovery.
- From the Utilities menu, select Terminal.
At the prompt type exactly the following and then press Return:
csrutil disable- Terminal should display a message that SIP was disabled.
- From the menu, select Restart.
You can re-enable SIP by following the above steps, but using
csrutil enableinstead.
回答2:
In some cases, if you are trying to connect to a "system provided" executable (for example, Terminal.app) there is a workaround by making a copy of such executable. The copy will be checked by SIP as "user installed" instead of "system provided".
For an example, see "Launching the Terminal app from Xcode on OS X with System Integrity Protection"
回答3:
Sometimes I also get this error on Xcode while trying to run an app on simulator. Usually I only run the app again, and at most I restart the simulator, and it solves the problem.
Be aware of the security risks you're incurring on disabling SIP (System Integrity Protection): https://support.apple.com/en-us/HT204899
来源：https://stackoverflow.com/questions/39219678/ios-xcode-error-cannot-attach-to-process-due-to-system-integrity-protection