Google Cast 2.6.0 errors when building iOS project

Question

Any of you guys had errors when building your iOS project after updating to the new Google Cast 2.6.0 framework?

I get the following error: Default initialisation of an object of const type ‘const NSInteger’ (aka ‘const int’). at the following lines in class GCKDevice:

/** Device capability flag for video out. */
GCK_EXPORT const NSInteger kGCKDeviceCapabilityVideoOut;
/** Device capability flag for video in. */
GCK_EXPORT const NSInteger kGCKDeviceCapabilityVideoIn;
/** Device capability flag for audio out. */
GCK_EXPORT const NSInteger kGCKDeviceCapabilityAudioOut;
/** Device capability flag for audio in. */
GCK_EXPORT const NSInteger kGCKDeviceCapabilityAudioIn;

Have you noticed any other errors? I'm assuming you didn't see this before the update, correct? — not_a_bot, Apr 03 '15 at 21:56
@not_a_bot The errors only appeared after integrating Google Cast 2.6.0, no issues before. — Dora, Apr 06 '15 at 07:14
Quick questions: 1) how are you integrating? Is it via cocoapods or linking the framework directly? 2) What version of Xcode are you using, and which base SDK are you using? — Ian Barber, Apr 06 '15 at 16:33
Also: are you using this from any objective-c++ code? Wondering if that is causing different build requirements. — Ian Barber, Apr 06 '15 at 16:40
Yes, one of my classes indeed is Objective-C++ and uses Chromecast. — Dora, Apr 07 '15 at 12:19

score 1 · Answer 1 · answered Apr 06 '15 at 17:30

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There is a bug in this version of the SDK for files compiled under Objective-C++. If you import the classes from a .mm file, there is a missing extern which will trigger a problem. As a workaround, if you can move you code to a regular .m file you should be OK (and you should be able to call out to that as long as you don't expose the GCK headers to the mm).

answered Apr 06 '15 at 17:30

Ian Barber

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For the future release of the SDK do you think this will be fixed? – Dora Apr 07 '15 at 12:22
Yep, definitely. There is a fix in the works, and it should be in the next SDK update. – Ian Barber Apr 08 '15 at 15:12

score 0 · Answer 2 · edited May 23 '17 at 12:14

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For me it helped to switch the "No Common Blocks" compiler setting to NO:

enter image description here

It pretty much seems to make sense, this setting defines how duplicate variable definitions are handled by the compiler. It is explained here: What is GCC_NO_COMMON_BLOCKS used for?

edited May 23 '17 at 12:14

Community

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answered Apr 28 '15 at 13:09

joobik.com

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It seems that I already had this flag set to NO, the errors persist :( – Dora May 08 '15 at 06:07

Google Cast 2.6.0 errors when building iOS project

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