# Problem building for iOS targets **URL:** \ **Category:** Forum\ **Tags:** mobile\ **Created:** [November 2, 2012, 9:31pm UTC](https://techcommunity.softwareag.com/t/problem-building-for-ios-targets/101894 "2012-11-02T21:31:56Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![system](https://global.discourse-cdn.com/techcommunity/original/3X/c/d/cd19967bb605d28a72d77eb83a1cae22f3df2eb8.svg) [@system](https://techcommunity.softwareag.com/u/system)\ **Post date:** [November 2, 2012, 9:31pm UTC](https://techcommunity.softwareag.com/t/problem-building-for-ios-targets/101894/1 "2012-11-02T21:31:56Z")
I’m attempting to build an app on my Mac, but even though it all runs fine in Phoney, etc., I get an error when I attempt to multi-build to any of the iOS platforms: ``` [exec] /usr/bin/clang++ -arch armv7 -lobjc -isysroot ``` /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/D eveloper/SDKs/iPhoneOS6.0.sdk -framework AddressBook -framework AddressBookUI -framework AudioToolbox -framework CFNetwork -framework CoreAudio -framework CoreFoundation -framework CoreGraphics -framework CoreLocation -framework Foundation -framework MediaPlayer -framework OpenAL -framework OpenGLES -framework QuartzCore -framework Security -framework SystemConfiguration -framework UIKit -weak\_framework MessageUI -lz -L"/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platfor m/Developer/SDKs/iPhoneOS6.0.sdk/usr/lib" -L"/Users/dave/softwareag/MobileDesigner/Platforms/iOS/lib" -lsdk6nativeui -lsdk6kxml2 -lsdk6webservices -lsdk6nokiaui -lsdk6location -lsdk6sensors -lsdk6opengles11 -lsdk6midp20 -lsdk6cldc11 -lsdk6png -F"/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platfor m/Developer/SDKs/iPhoneOS6.0.sdk/System/Library/Frameworks" -o build/armv7/UMGDemoiPhoneEN build/armv7/StubInfo.o build/armv7/staticproxy.o build/armv7/Parameters.o build/armv7/HttpConnectionHandler.o build/armv7/MessageConnectionHandler.o build/armv7/Application.o build/armv7/CanvasBase.o build/armv7/CanvasCore.o build/armv7/CanvasDimensions.o build/armv7/CanvasInterrupts.o build/armv7/CanvasKeysAndTouch.o build/armv7/CanvasNativeUI.o build/armv7/CanvasSoftkeys.o build/armv7/CanvasThreading.o build/armv7/AudioHandler.o build/armv7/CameraHandler.o build/armv7/ImageBase.o build/armv7/ImageHandler.o build/armv7/PngParser.o build/armv7/TextHandler.o build/armv7/Serializable.o build/armv7/Serializer.o build/armv7/RecordStoreHandler.o build/armv7/ResourceDataTypes.o build/armv7/ResourceHandler.o build/armv7/Maths.o build/armv7/PlatformRequest.o build/armv7/MyApplication.o build/armv7/MyCanvas.o build/armv7/DataCache.o build/armv7/ServerConnection.o build/armv7/VirtualServer.o ``` [exec] Undefined symbols for architecture armv7: [exec] ``` “javax::wireless::messaging::TextMessage::MDESclassTypeID”, referenced from: ``` [exec] ``` com::softwareag::mobile::runtime::comms::MessageConnectionHandler::sendM essage(JavaPtr\, int, JavaPtr\, JavaPtr\) in MessageConnectionHandler.o ``` [exec] ``` com::softwareag::mobile::runtime::comms::MessageConnectionHandler::getIn formationFromMessageConnection(JavaPtr\) in MessageConnectionHandler.o ``` [exec] ``` “javax::wireless::messaging::BinaryMessage::MDESclassTypeID”, referenced from: ``` [exec] ``` com::softwareag::mobile::runtime::comms::MessageConnectionHandler::sendM essage(JavaPtr\, int, JavaPtr\, JavaPtr\) in MessageConnectionHandler.o ``` [exec] ``` com::softwareag::mobile::runtime::comms::MessageConnectionHandler::getIn formationFromMessageConnection(JavaPtr\) in MessageConnectionHandler.o ``` [exec] ``` “javax::wireless::messaging::MessageListener::MDESclassTypeID”, referenced from: ``` [exec] ``` com::softwareag::mobile::runtime::comms::MessageConnectionHandler::openM essageListener() in MessageConnectionHandler.o ``` [exec] ``` “javax::wireless::messaging::MessageConnection::TEXT\_MESSAGE”, referenced from: ``` [exec] ``` com::softwareag::mobile::runtime::comms::MessageConnectionHandler::sendM essage(JavaPtr\, int, JavaPtr\, JavaPtr\) in MessageConnectionHandler.o ``` [exec] ``` “javax::wireless::messaging::MessageConnection::BINARY\_MESSAGE”, referenced from: ``` [exec] ``` com::softwareag::mobile::runtime::comms::MessageConnectionHandler::sendM essage(JavaPtr\, int, JavaPtr\, JavaPtr\) in MessageConnectionHandler.o ``` [exec] ``` “javax::wireless::messaging::MessageConnection::MDESclassTypeID”, referenced from: ``` [exec] ``` com::softwareag::mobile::runtime::comms::MessageConnectionHandler::sendM essage(JavaPtr\, int, JavaPtr\, JavaPtr\) in MessageConnectionHandler.o ``` [exec] ``` com::softwareag::mobile::runtime::comms::MessageConnectionHandler::check ForMessageConnections() in MessageConnectionHandler.o ``` [exec] ``` com::softwareag::mobile::runtime::comms::MessageConnectionHandler::openM essageListener() in MessageConnectionHandler.o ``` [exec] ld: symbol(s) not found for architecture armv7 [exec] clang: error: linker command failed with exit code 1 (use ``` -v to see invocation) ``` [exec] make: *** [build/armv7/UMGDemoiPhoneEN] Error 1 ``` Has anyone seen this before, or have any idea what the issue might be? Dave [winmail.dat](https://techcommunity.softwareag.com/uploads/short-url/u8SFdTawrAbV9b5q5PpEskoGQ0p.dat) (7.66 KB) ---
**Author:** ![system](https://global.discourse-cdn.com/techcommunity/original/3X/c/d/cd19967bb605d28a72d77eb83a1cae22f3df2eb8.svg) [@system](https://techcommunity.softwareag.com/u/system)\ **Post date:** [November 3, 2012, 12:36am UTC](https://techcommunity.softwareag.com/t/problem-building-for-ios-targets/101894/2 "2012-11-03T00:36:56Z")
Hi Dave, On the one hand, I haven’t done much with the Messaging code, but at a glance I don’t see the sdk6wma205 library linked on the exec line. If you are using a custom implementation of javax.wireless.messaging.TextMessage, make sure that it has run through the cross-compiler, as that should set you up with the MDESclassTypeID correctly. Otherwise, I would suggest looking in to why that library isn’t being linked, as I believe it should contain the class implementation/definition you are looking for. Spencer [winmail.dat](https://techcommunity.softwareag.com/uploads/short-url/lvHfCxHomRTdP0pmNmJhC8IADlj.dat) (18.6 KB) ---
**Author:** ![system](https://global.discourse-cdn.com/techcommunity/original/3X/c/d/cd19967bb605d28a72d77eb83a1cae22f3df2eb8.svg) [@system](https://techcommunity.softwareag.com/u/system)\ **Post date:** [November 3, 2012, 3:06pm UTC](https://techcommunity.softwareag.com/t/problem-building-for-ios-targets/101894/3 "2012-11-03T15:06:56Z")
Hi Dave, Sounds like your project isn’t linking the wma libraries which are needed when the device profile references the following: you probably need to ensure that the following is set to true (or more likely isn’t set to false, in your project): Cheers, Matt ---
**Author:** ![system](https://global.discourse-cdn.com/techcommunity/original/3X/c/d/cd19967bb605d28a72d77eb83a1cae22f3df2eb8.svg) [@system](https://techcommunity.softwareag.com/u/system)\ **Post date:** [April 2, 2021, 3:02pm UTC](https://techcommunity.softwareag.com/t/problem-building-for-ios-targets/101894/4 "2021-04-02T15:02:39Z")