Xcode 6 Beta 4 Error - "An error was detected during startup (Domain = com.apple.CoreSimulator.SimError, Code = 146)"

Question

Just upgraded from Xcode 6 Beta 3 to Beta 4, and everything seems strict, but when the simulator tries to start, I get:

An error was encountered while running (Domain = com.apple.CoreSimulator.SimError, Code = 146) 

It was well built on Beta 3, so I guess this might be a Beta 4 bug, but I thought I would throw it away just to make sure. Any ideas?

Answer 1

I exit Xcode and the simulator and then restarted. These steps solved the problem.

Answer 2

I had problems when I first updated. I did not get the same error as you. However, I was able to get the job done by removing my Pods (the project uses Cocoapods) and reinstalling them. I also left and restarted Xcode as well as Simulator. I will also try restarting the computer. Good luck.

Answer 3

It seemed to me that this work works again in Beta 4, following the instructions from the following question:

Error opening iOS simulator with iOS 8 beta: "Failed to load iOS simulator"

I had to reset several times and perform some actions several times, but my program now works and runs on the simulator.