Help/Support Possible to Class-dump Swift App?

[dabeast323 35 12 9.0.2]

Hello Guys, 

 

I am trying to Dump Header Files for an app and Im Getting 

 

2017-02-13 01:06:19.439 class-dump[6758:573647] Error: Cannot find offset for address 0xe800000001003fa0 in stringAtAddress:

 

now i have done this same thing with another app and it works just fine just have to take the app out of Payload/xxxx.ipa and change the attributes to Read Write and Executable, well with this One app, Or My Guess Apps made using Swift Dont Generally have Header files and Therefore, I am Unable to Get them Is this the Case? Really Appreciate any Help 

 

Thank you, 
ED

Updated February 13, 2017 by dabeast323