IOS simulator does not start

Question

I have come across this problem over and over again. Can anyone solve this problem besides rebooting the Mac?

I already tried these tricks

• simulator → services → a reset content and settings ,
  closing xcode and reopening
  xcode → toos developer → simulator → (open simulator) ,
  exit the simulator Activity Monitor → (the simulator is closed, so there is nothing here to force it to close)

• First of all, drop your simulator.
  And then close and restart Xcode.
  And then run your project.

• Restart xcode and simulator

Answer 1

I also have this problem and googled it, which redirect to this question. My was xcode10 What I did is this

1. Exit Simulator and Xcode.
2. Opened Activity monitor , chose the cpu option and search for sim , killing the whole process shown as a result.
3. Then launched the terminal and launched sudo xcrun simctl erase all . This will remove all content from all simulators. According to the content, if you log in somewhere, the password will disappear, all the developer applications installed in this simulator will disappear.

This solved my problem. Hope it helps.

Answer 2

In the section Product -> Scheme -> Edit Scheme check these settings once.

Answer 3

In Xcode, select the tab Product > Scheme > Edit Scheme > Run > Options .

Confirm Launch due to a background fetch event not selected .

See image below ...

Answer 4

A long shot, but in my case, I just moved my Xcode to Applications and restarted Xcode .

Answer 5

Enable / change location in xcode console. It worked for me.

Answer 6

None of the above solutions helped me.

I tried too

 sudo killall -10 com.apple.CoreSimulator.CoreSimulatorService 

And even after a clean reinstall of Xcode, my simulators continue to close after starting.

So I removed all the simulators from Window - Device & Organizers

And then he added a new

And the problem is gone