xCode Build Error in trying to build command line for Briefs wireframes

i am trying to compile the "compact-briefs"-target of Brief (http://github.com/capttaco/Briefs) with xCode.

But every time i run build i get this error:

target specifies product type 'com.apple.product-type.tool开发者_如何学Python', but there's no such product type for the 'iphonesimulator' platform

Whats wrong?

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a tool (command line utility) is not a valid target for iOS.

specifically, your choices when targeting iOS are:

• application

• static library

you'll need to create a new target in Xcode (probably a static library) to compile this program (and remove the main entry if building a static library). technically, you could alter the existing target -- but i recommended creating a new one because changing the existing target could break something for somebody else.