This will be really cool as there are many features the official Spine runtime supports that have not been possible to use for a while. It will open doors for complicated effects!
Great improvement!! Thanks for your hard work!! 
I’ve gone back to the same project to make a new build and wanted to test the game locally in the editor first. I now get this error on CMD + B with Defold 1.2.184:
/defunityads/src/unityads.cpp
Line 5: 'DLIB_LOG_DOMAIN' macro redefined [-Wmacro-redefined]
#define DLIB_LOG_DOMAIN LIB_NAME
^
Line 5: previous definition is here
#define DLIB_LOG_DOMAIN "DEFUNITYADS"
^
Line 6: In file included from upload/defunityads/src/unityads.cpp:6:
In file included from /usr/local/extender-production/sdk/1f5712609c345f870b691a85d611d4825d22a718/defoldsdk//sdk/include/dmsdk/sdk.h:16:
In file included from /usr/local/extender-production/sdk/1f5712609c345f870b691a85d611d4825d22a718/defoldsdk//sdk/include/dmsdk/extension/extension.h:16:
'string.h' file not found
#include_next <string.h>
^~~~~~~~~~
/defunityads/src/utils/LuaUtils.h
Line 3: In file included from upload/defunityads/src/utils/LuaUtils.cpp:1:
In file included from upload/defunityads/src/utils/LuaUtils.h:3:
In file included from /usr/local/extender-production/sdk/1f5712609c345f870b691a85d611d4825d22a718/defoldsdk//sdk/include/dmsdk/sdk.h:16:
In file included from /usr/local/extender-production/sdk/1f5712609c345f870b691a85d611d4825d22a718/defoldsdk//sdk/include/dmsdk/extension/extension.h:16:
'string.h' file not found
#include_next <string.h>
^~~~~~~~~~
clang: warning: no such sysroot directory: '/usr/local/extender-production/platformsdk/MacOSX10.15.sdk/' [-Wmissing-sysroot]
/usr/local/extender-production/platformsdk/XcodeDefault12.5.xctoolchain/usr/bin/ranlib: file: /var/folders/pf/p5g2vb2j0yx1x6vlmxdppc700000gn/T/job6433648876335939024/build/libAdInfoExt_1.a(adinfo.cpp_0.o) has no symbols
/usr/local/extender-production/platformsdk/XcodeDefault12.5.xctoolchain/usr/bin/ranlib: file: /var/folders/pf/p5g2vb2j0yx1x6vlmxdppc700000gn/T/job6433648876335939024/build/libAdInfoExt_1.a(adinfo_android.cpp_1.o) has no symbols
/usr/local/extender-production/platformsdk/XcodeDefault12.5.xctoolchain/usr/bin/ranlib: file: /var/folders/pf/p5g2vb2j0yx1x6vlmxdppc700000gn/T/job6433648876335939024/build/libAdInfoExt_1.a(adinfo_ios.mm_2.o) has no symbols
Update: Bundling to Android works, just not building with CMD+B.
the fastest and the simplest way to fix it is to update Defold to the latest version or at least 1.2.187
Thanks @AGulev. The reason we’re still on 1.2.184 is described here. I’m downloading the latest and greatest Defold now to see if it that issue is now fixed.
Latest Defold uses MacOS build server. So if it was the solution for your problem, so now it’s should be fine.
I’m afraid the Gamecenter errors still happen when building (CMD+B) with Defold 1.2.188. The errors are listed in this post and appear to be identical.
Maybe the build server URL needs to be changed? I’m currently using https://build.defold.com.
UPDATE: Minimal project to recreate the issue:
GamecenterTest.zip (1.2 KB)
Errors with Defold 1.2.184:
/gamekit/src/GameCenterDelegate.mm
Line 4: In file included from upload/gamekit/src/GameCenterDelegate.mm:4:
'stdio.h' file not found
#include_next <stdio.h>
^~~~~~~~~
/gamekit/src/GameKit.cpp
Line 9: 'DLIB_LOG_DOMAIN' macro redefined [-Wmacro-redefined]
#define DLIB_LOG_DOMAIN "GameKit"
^
Line 9: previous definition is here
#define DLIB_LOG_DOMAIN "GAMEKIT"
^
Line 10: In file included from upload/gamekit/src/GameKit.cpp:10:
In file included from /usr/local/extender-production/sdk/1f5712609c345f870b691a85d611d4825d22a718/defoldsdk//sdk/include/dmsdk/sdk.h:16:
In file included from /usr/local/extender-production/sdk/1f5712609c345f870b691a85d611d4825d22a718/defoldsdk//sdk/include/dmsdk/extension/extension.h:16:
'string.h' file not found
#include_next <string.h>
^~~~~~~~~~
/gamekit/src/GameKit.mm
Line 4: In file included from upload/gamekit/src/GameKit.mm:4:
'stdio.h' file not found
#include_next <stdio.h>
^~~~~~~~~
/gamekit/src/GetCommands.mm
Line 4: In file included from upload/gamekit/src/GetCommands.mm:4:
'stdio.h' file not found
#include_next <stdio.h>
^~~~~~~~~
/gamekit/src/ImageBitmap.h
Line 4: In file included from upload/gamekit/src/ImageBitmap.mm:4:
'GameKit/GameKit.h' file not found
#import <GameKit/GameKit.h>
^~~~~~~~~~~~~~~~~~~
/gamekit/src/LuaEvents.cpp
Line 4: In file included from upload/gamekit/src/LuaEvents.cpp:4:
'stdio.h' file not found
#include_next <stdio.h>
^~~~~~~~~
/gamekit/src/LuaStackDump.h
Line 7: In file included from upload/gamekit/src/LuaStackDump.cpp:4:
In file included from upload/gamekit/src/LuaStackDump.h:7:
'stdio.h' file not found
#include_next <stdio.h>
^~~~~~~~~
/gamekit/src/RealTimeCommands.mm
Line 4: In file included from upload/gamekit/src/RealTimeCommands.mm:4:
'stdio.h' file not found
#include_next <stdio.h>
^~~~~~~~~
/gamekit/src/SendCommands.mm
Line 4: In file included from upload/gamekit/src/SendCommands.mm:4:
'stdio.h' file not found
#include_next <stdio.h>
^~~~~~~~~
/gamekit/src/ShowCommands.mm
Line 4: In file included from upload/gamekit/src/ShowCommands.mm:4:
'stdio.h' file not found
#include_next <stdio.h>
^~~~~~~~~
Errors with Defold 1.2.188:
/gamekit/src/GameCenterDelegate.mm
Line 9: In file included from upload/gamekit/src/GameCenterDelegate.mm:9:
In file included from /usr/local/extender-production/platformsdk/MacOSX11.3.sdk/System/Library/Frameworks/GameKit.framework/Headers/GameKit.h:19:
In file included from /usr/local/extender-production/platformsdk/MacOSX11.3.sdk/System/Library/Frameworks/GameController.framework/Headers/GameController.h:48:
property with 'retain (or strong)' attribute must be of object type
@property (nonatomic, strong) dispatch_queue_t handlerQueue API_AVAILABLE(macos(10.9), ios(7.0), tvos(7.0));
^
/gamekit/src/GameKit.mm
Line 9: In file included from upload/gamekit/src/GameKit.mm:9:
In file included from /usr/local/extender-production/platformsdk/MacOSX11.3.sdk/System/Library/Frameworks/GameKit.framework/Headers/GameKit.h:19:
In file included from /usr/local/extender-production/platformsdk/MacOSX11.3.sdk/System/Library/Frameworks/GameController.framework/Headers/GameController.h:48:
property with 'retain (or strong)' attribute must be of object type
@property (nonatomic, strong) dispatch_queue_t handlerQueue API_AVAILABLE(macos(10.9), ios(7.0), tvos(7.0));
^
/gamekit/src/GetCommands.mm
Line 9: In file included from upload/gamekit/src/GetCommands.mm:9:
In file included from /usr/local/extender-production/platformsdk/MacOSX11.3.sdk/System/Library/Frameworks/GameKit.framework/Headers/GameKit.h:19:
In file included from /usr/local/extender-production/platformsdk/MacOSX11.3.sdk/System/Library/Frameworks/GameController.framework/Headers/GameController.h:48:
property with 'retain (or strong)' attribute must be of object type
@property (nonatomic, strong) dispatch_queue_t handlerQueue API_AVAILABLE(macos(10.9), ios(7.0), tvos(7.0));
^
/gamekit/src/ImageBitmap.h
Line 4: In file included from upload/gamekit/src/ImageBitmap.mm:4:
In file included from upload/gamekit/src/ImageBitmap.h:4:
In file included from /usr/local/extender-production/platformsdk/MacOSX11.3.sdk/System/Library/Frameworks/GameKit.framework/Headers/GameKit.h:19:
In file included from /usr/local/extender-production/platformsdk/MacOSX11.3.sdk/System/Library/Frameworks/GameController.framework/Headers/GameController.h:48:
property with 'retain (or strong)' attribute must be of object type
@property (nonatomic, strong) dispatch_queue_t handlerQueue API_AVAILABLE(macos(10.9), ios(7.0), tvos(7.0));
^
/gamekit/src/RealTimeCommands.mm
Line 9: In file included from upload/gamekit/src/RealTimeCommands.mm:9:
In file included from /usr/local/extender-production/platformsdk/MacOSX11.3.sdk/System/Library/Frameworks/GameKit.framework/Headers/GameKit.h:19:
In file included from /usr/local/extender-production/platformsdk/MacOSX11.3.sdk/System/Library/Frameworks/GameController.framework/Headers/GameController.h:48:
property with 'retain (or strong)' attribute must be of object type
@property (nonatomic, strong) dispatch_queue_t handlerQueue API_AVAILABLE(macos(10.9), ios(7.0), tvos(7.0));
^
/gamekit/src/SendCommands.mm
Line 9: In file included from upload/gamekit/src/SendCommands.mm:9:
In file included from /usr/local/extender-production/platformsdk/MacOSX11.3.sdk/System/Library/Frameworks/GameKit.framework/Headers/GameKit.h:19:
In file included from /usr/local/extender-production/platformsdk/MacOSX11.3.sdk/System/Library/Frameworks/GameController.framework/Headers/GameController.h:48:
property with 'retain (or strong)' attribute must be of object type
@property (nonatomic, strong) dispatch_queue_t handlerQueue API_AVAILABLE(macos(10.9), ios(7.0), tvos(7.0));
^
/gamekit/src/ShowCommands.mm
Line 9: In file included from upload/gamekit/src/ShowCommands.mm:9:
In file included from /usr/local/extender-production/platformsdk/MacOSX11.3.sdk/System/Library/Frameworks/GameKit.framework/Headers/GameKit.h:19:
In file included from /usr/local/extender-production/platformsdk/MacOSX11.3.sdk/System/Library/Frameworks/GameController.framework/Headers/GameController.h:48:
property with 'retain (or strong)' attribute must be of object type
@property (nonatomic, strong) dispatch_queue_t handlerQueue API_AVAILABLE(macos(10.9), ios(7.0), tvos(7.0));
^I see, this is some issue in the Game Center extension you are using. Please create a ticket in the extensions gihub. Also you can try this Game Center extension https://github.com/Dragosha/extension-gamecenter. It seems to be building fine
UPD: Sorry, I need to take a look closer to this issue. I’ll do it later.
I have some problems fetching new spine extension. I’m using such link to do so: https://github.com/defold/extension-spine/archive/master.zip
When loading project I got this message:
If I fetch from the editor, nothing happens. Just in case I added facebook extension and tried fetching it. Everything was downloaded correctly.
Update: Rive extension is also fetching fine.
Not sure if github has changed their layout of links?
If I copy the “Download Zip” link, I get
https://github.com/defold/extension-spine/archive/refs/heads/main.zip
Edit: @Pkeod noticed it was a copy paste error in our documentation that mentioned “master.zip”, whereas this is a new github repo, which has the new name “main.zip”:
https://github.com/defold/extension-spine/archive/main.zip
Yep, that was the case. With main.zip everything is fine. Thanks.
I’ve started porting extension-gamekit (by Animonger) to extension-gamecenter (by Dragosha). This is likely to solve the issue, right? I think it’s the right thing to do, because the Animonger extension is currently not maintained.
I’m back with another issue)
When bundling the project I got this error:
Should I create issue on github as well?
I also got this error just now when bundling to iOS.
Correct, we’ve moved the material from the engine to the extension.
This error from the extension itself. It is trying to use builtin material, which is no longer there.
@totebo @russelkgd I cannot find a reference to builtins material 
I recall fixing such an issue some week ago.
Which version of extension-spine are you using?
Sorry, I screenshotted the wrong file - it’s in /assets/editor/resources/templates/template.spinemodel.
I tried using both main and 1.0.3. Update: Removing the templates folder on a local copy (with the extension dependecny removed) worked, iOS built a nice .ipa.