Can't run 7.1 emulator

I’m trying to run the example test on iOS 7.1 but it fails on:

> Error: [init({"browserName":"safari","appium-version":"1.3","platformName":"iOS","platformVersion":"7.1","deviceName":"iPhone Simulator"})] The environment you requested was unavailable.

But I’m able to launch the 7.1 different emulators. I’m able to launch 8.2 and 8.1 - but not 7.1
Using XCode 6.2

Any ideas?