Unable To Build iOS App Using Native Extension

[lostinthecloud]

I’m trying to create a native extension for iOS and use that extension as part of an IPA app for iOS I create from a SWF file using the ADT tool (i.e. the normal use-case for iOS). Note: I have already successfully created the native extension and APK app for Android and now I am trying to build the iOS side.

I have been primarily using the information found at the following websites:

http://www.adobe.com/devnet/air/articles/building-ane-ios-android-pt3.html

http://www.adobe.com/devnet/air/articles/building-ane-ios-android-pt5.html

http://help.adobe.com/en_US/air/build/WS901d38e593cd1bac35eb7b4e12cddc5fbbb-8000.html

I have also searched the Adobe forums for the answer to my question without success.

The error I receive is:

ld: warning: ignoring file /var/folders/c3/mpg4frwn2j1f8scw4jctbmv9hfkswj/T/bd3fbd4a-cf56-4fd6-a06d-d69ea92dc620/libcom.mycompany.MyExtension.a, file was built for archive which is not the architecture being linked (armv7): /var/folders/c3/mpg4frwn2j1f8scw4jctbmv9hfkswj/T/bd3fbd4a-cf56-4fd6-a06d-d69ea92dc620/libcom.mycompany.MyExtension.a

Undefined symbols for architecture armv7:

  "_MyExtensionInitializer", referenced from:

      _g_com_adobe_air_fre_fmap in aotInfo.o

  "_MyExtensionFinalizer", referenced from:

      _g_com_adobe_air_fre_fmap in aotInfo.o

ld: symbol(s) not found for architecture armv7

Compilation failed while executing : ld64

I receive the above error when I execute the following command:

adt -package -target ipa-ad-hoc -storetype pkcs12 -keystore certificate.pfx -provisioning-profile provisioning_profile.mobileprovision MyApp.ipa MyApp.xml MyApp.swf -extdir packaged-extensions

where the folder “packaged-extensions” contains the ANE file I created using this command:

adt -package -target ane packaged-extensions/MyExtension.ane MyExtension.xml -swc MyExtension.swc -platform Android-ARM -platformoptions platformAndroidARM.xml -C dependencies . -C platform/Android . -platform iPhone-ARM -platformoptions platformiOSARM.xml -C platform/IOS . -platform default -C platform/default library.swf

where the content of the files are as follows:

MyApp.xml:

<application xmlns="http://ns.adobe.com/air/application/4.0">

    <id>MyApp</id>

    <versionNumber>0.0.1</versionNumber>

    <filename>MyApp</filename>

    <initialWindow>

        <content>MyApp.swf</content>

        <visible>true</visible>

        <width>600</width>

        <height>600</height>

    </initialWindow>

    <supportedProfiles>mobileDevice</supportedProfiles>

        <extensions>

                <extensionID>com.mycompany.MyExtension</extensionID>

        </extensions>

</application>

MyExtension.xml:

<extension xmlns="http://ns.adobe.com/air/extension/4.0">

        <id>com.mycompany.MyExtension</id>

        <versionNumber>0.0.1</versionNumber>

        <platforms>

                <platform name="Android-ARM">

                        <applicationDeployment>

                                <nativeLibrary>MyExtension.jar</nativeLibrary>

                                <initializer>com.mycompany.MyExtension</initializer>

                        </applicationDeployment>               

                </platform>

                <platform name="iPhone-ARM">

                        <applicationDeployment>

                                <nativeLibrary>libMyExtensionIOSLibrary.a</nativeLibrary>

                                <initializer>MyExtensionInitializer</initializer>

                                <finalizer>MyExtensionFinalizer</finalizer>

                        </applicationDeployment>

                </platform>

                <platform name="default">

                        <applicationDeployment/>

                </platform>

        </platforms>

</extension>

platformiOSARM.xml:

<platform xmlns="http://ns.adobe.com/air/extension/4.0">

  <linkerOptions>

    <option>-ios_version_min 5.1</option>

    <option>-liconv</option>

  </linkerOptions>

</platform>

MyExtensionIOSLibrary.m (yes, I know it doesn't do anything - it's simple on purpose to help isolate the error):

#import "FlashRuntimeExtensions.h"

void MyContextInitializer(void* extData, const uint8_t *ctxType, FREContext ctx, uint32_t *numFunctionsToTest, const FRENamedFunction **functionsToSet) {

  return;   

}

void MyExtensionInitializer(void **extDataToSet, FREContextInitializer* ctxInitializerToSet, FREContextFinalizer* ctxFinalizerToSet) {

    *extDataToSet = NULL;

    *ctxInitializerToSet = &MyContextInitializer;

}

void MyExtensionFinalizer(void *extData)

{

    return;

}

I am using XCode to build MyExtensionIOSLibrary.m into a library file with a .a filename extension. My relevant build settings are:

iOS Deployment Target: iOS 5.1

Architectures: armv7

Build Active Architectures Only: No

Product Scheme: Release

Compile Sources As: Objective-C

Any ideas? Please help.

[marchbold]

Hi,

That one sounds like a Xcode build settings problem.

Things to check:

- Base SDK: iphoneos

- Supported Platforms: iphoneos

- Valid Architectures: arm64 armv7 armv7s

- Other Linker Flags: -ObjC

- Automatic Reference Counting: YES

- Enable Linking With Shared Libraries: YES

Cheers   

[lostinthecloud]

Thanks so much for your response! I checked all of those settings and they're all already as you suggested. So I guess it's something else.

[gmohassy]

same error here.have you solved the problem?

[marchbold]

Yeah okay,

How are you building the iOS library (.a) ? Are you compiling for a device and pulling the file out of Release-iphoneos/

[gmohassy]

Thanks for the reply.

yes.I've created a static library with 3rd party frameworks and pulled the .a from product folder(Debug-iphoneos).

and the framework didn't work(armv7 not supported error occurs ..don't know why) with it's original folder structure .

so I followed below link to change folders inside the 3rd party framework and figured out but now  the application crashes on startup without giving an error message. .

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