Build error: cannot find protocol declaration for 'WebPolicyDelegate' about ichm HOT 3 CLOSED

Prior to the OS X 10.11 SDK, <WebUIDelegate> was an informal protocol. In other words, since you're building against the OS X 10.10 SDK, the WebUIDelegate is defined as:

@interface NSObject (WebUIDelegate)
// various methods
@end

In the OS X 10.11 SDK, it became a formal protocol.

You can do a couple of things.

1. Upgrade to Xcode 7.2.1 which includes the OS X 10.11 SDK and runs in OS X 10.10.5 (the same OS X I'm running here).
2. Otherwise, you could try doing a forward declaration in CHMDocument.h

@protocol WebUIDelegate;

@interface CHMDocument : NSDocument <NSToolbarDelegate, WebPolicyDelegate, WebResourceLoadDelegate, WebFrameLoadDelegate, WebUIDelegate> {

That may allow the code to compile, though you may get warnings about not finding a definition for the protocol.

3.Alternatively, you could simply remove WebUIDelegate from the list of protocols CHMDocument conforms to, by changing:

@interface CHMDocument : NSDocument <NSToolbarDelegate, WebPolicyDelegate,
                    WebResourceLoadDelegate, WebFrameLoadDelegate, WebUIDelegate> {

to:

@interface CHMDocument : NSDocument <NSToolbarDelegate, WebPolicyDelegate,
                                    WebResourceLoadDelegate, WebFrameLoadDelegate> {

from ichm.

Looking into this more, and will try to make the project as backward compatible as possible.

from ichm.

This issue should now be fixed in bfc5d04.

from ichm.