Xcode 6.0.1 Command /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc failed with exit code 1

Question

I am getting this error on archive:

Command /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc failed with

Answer 1

I experienced this error after performing a git merge. I solved new Xcode warnings and the project can be compiled.

Xcode 7.2.1 is used in my case.

Answer 2

You can click the Product in the navigation and choose the "Clean" button; it will clean all compile error in your project. Then, you can debug for the latest error.

Answer 3

one more case that can lead to this error which just took me hours to track down: a failable initializer that always returns nil.

i had an initializer that looked like this:

init?(object: MyObject) {
    if object.importantProperty {
        // initialize
    }
    return nil
}

when what i meant was:

init?(object: MyObject) {
    if object.importantProperty {
        // initialize
    }
    else {
        return nil
    }
}

fixing the initializer made the error go away.

Answer 4

In my way the error was due to UIDevice.currentDevice() in ((UIDevice.currentDevice().systemVersion as NSString).floatValue >= 8.0)

After commenting this all starts work fine.

XCode 7.2

Answer 5

This occurred for me when I had two of the exact same files, and also when I was missing I file I didn't know I had deleted. I clicked on the error message, and just above the error, it shows you what file you have more than 1 of or are missing.

Answer 6

in my case , at your project target Build Setttings, in Other Swift Flags，jsut delete the String "-serialize-debuggin-options" enter image description here