compile MAX SDK 6.0.0. example externals

    Nov 28 2011 | 9:21 pm
    I am using MacOSX 10.7 and just installed XCode 4.2.1. I wanted to compile an example plussz from MAX SDK 6.0.0. but the compiler says:
    The run destination My Mac 64-bit is not valid for Running the scheme 'max-external'.
    What is wrong?
    Thanks Thomas