Task failed with exit 1 signal

I'm new at this. I got an App working in the simulator. I joined the developer program today. I have an PAD hooked to the Mac. Followed the instructions to get a IOS Development Certificate. On thd web I see on the web site 1 certificate. I create a brand new project with a single view, nothing in it, toggle the team to my company name, attempt to comile to the IPAD target, and get what appears to be a signining error.


Task failed with exit 1


/Users/mike/Library/Developer/Xcode/DerivedData/test6-glsfkkaledjfophaaelqgopjaouk/Build/Products/Debug-iphoneos/test6.app/Frameworks/libswiftCore.dylib: unknown error -1=ffffffffffffffff

error: Task failed with exit 1 signal 0 {

/usr/bin/codesign '--force' '--sign' '787E6DA1B4B424DFB56C9AD9074103B74C59C48C' '--verbose' '/Users/mike/Library/Developer/Xcode/DerivedData/test6-glsfkkaledjfophaaelqgopjaouk/Build/Products/Debug-iphoneos/test6.app/Frameworks/libswiftCore.dylib'

}

What is going wrong?