[kman42]

I added a new window to my app by subclassing NSWindowController and creating a new nib file. I connected everything up and then I created a method in my main controller file that would create a new instance of my new NSWindowController subclass on a double click. Now I get a 'Build failed (see build log for details)' error. Here is the most interesting line from the build log but I don't know what it means:

...failed MasterObjectFile.Combine /Users/kmarek/Documents/CocoaMed/build/intermediates/CocoaMed.build/master.o ...

kman

[Angus_D]

The interesting lines are a bit further up, but probably got lost under all the jam crap.

[kman42]

Do these mean anything?

warning: <CocoaMed>CocoaMed.app depends on itself
...updating 10 target(s)...
BuildPhase CocoaMed.app
Completed phase <CopyHeaders> for CocoaMed.app
Cp /Users/kmarek/Documents/CocoaMed/build/CocoaMed.app/Contents/Info.plist
Cp /Users/kmarek/Documents/CocoaMed/build/CocoaMed.app/Contents/pbdevelopment.plist
BuildPhase CocoaMed.app
Completed phase <CopyResources> for CocoaMed.app
BuildPhase CocoaMed.app
Completed phase <DeriveAndCompileSources> for CocoaMed.app
MasterObjectFile.Combine /Users/kmarek/Documents/CocoaMed/build/intermediates/CocoaMed.build/master.o
/usr/bin/ld: multiple definitions of symbol .objc_class_name_reference
/Users/kmarek/Documents/CocoaMed/build/intermediates/CocoaMed.build/Objects/ppc/reference.o definition of absolute .objc_class_name_reference (value 0x0)
/Users/kmarek/Documents/CocoaMed/build/intermediates/CocoaMed.build/Objects/ppc/ReferenceController.o definition of absolute .objc_class_name_reference (value 0x0)

/usr/bin/cc -arch ppc -keep_private_externs -nostdlib -filelist "/Users/kmarek/Documents/CocoaMed/build/intermediates/CocoaMed.build/Objects/LinkFileListPrelink" -r -o "/Users/kmarek/Documents/CocoaMed/build/intermediates/CocoaMed.build/master.o"

...failed MasterObjectFile.Combine /Users/kmarek/Documents/CocoaMed/build/intermediates/CocoaMed.build/master.o ...

[kman42]

Well, I figured it out. Those two definitions of reference were because I unintentionally did this:
#import "reference.m" instead of:
#import "reference.h"

kman