po command doesn't work for Swift code

I have a mixed Obj C and Swift project that builds and runs fine. At some point, I lost the ability to do the po command in the debugger for variables in the Swift code. It works perfectly fine in the Obj C code. If I set a breakpoint in the Swift code as shown in the image and do 'po indexPath', I get a parse error. If a repeat the command, I get error messages about the bridging header.

TDSettings is a subclass of RLMObject which is defined in RLMObject.h which is imported by Realm.h as shown below.

How is it the project can build fine but the debugger can't find the headers?

po command doesn't work for Swift code
 
 
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