Launching instruments from command line with iPhone simulator

Following this question, how do I launch instruments with iPhone simulator as a device. I tried this:

$ instruments -t /Developer/Platforms/iPhoneOS.platform/Developer/Library/Instruments/PlugIns/AutomationInstrument.bundle/Contents/Resources/Automation.tracetemplate -w iphonesimulator5.0

But I get this error:

Instruments Usage Error : Device failed to become ready for use.


-w <deviceID> is used only when you wish to specify a hardware device as the destination (the 'deviceID' here is the Identifier of the device, found in the Organizer of Xcode).

Instead of using -w, you can specify a flag during the build to force instruments to use iPhone. Details can be found here.

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