环境：

mac os 操作系统

xcode最新版本
10.2.1

---

flutter进行编译报错解决方案：
(null): warning: (armv7) /Users/tommy/Desktop/Project/AliPay/SourceTree/ios-msdk-git/AlipaySDK4Standard/AlipaySDK/Library/UTDID.framework/UTDID(AidManager.o) unable to open object file: No such file or directory

(null): warning: (arm64) /Users/tommy/Desktop/Project/AliPay/SourceTree/ios-msdk-git/AlipaySDK4Standard/AlipaySDK/Library/UTDID.framework/UTDID(AidStorage.o) unable to open object file: No such file or directory

解决办法

https://www.cnblogs.com/qiangyuzhou/p/10919580.html

新版的Xcode少了这个PackageApplication（注：PackageApplication在前几个版本已被标识为废弃，在8.3版本彻底移除了），所以先弄个8.3以前的包进来，先去找个旧版的Xcode里面copy一份过来

下载地址：https://pan.baidu.com/s/1f-J7KUTHePiDvXOHtW9EqA
把文件进行放到这个目录下：

/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/

然后执行命令：
sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer/

chmod +x /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/PackageApplication

将打包后的Runner.app 进行打包成XXXX.ipa文件：
cd /Users/shangying/fworkspace/syhospital_patient/build/ios/iphoneos/

/usr/bin/xcrun -sdk iphoneos PackageApplication -v Runner.app -o XXX.ipa

解释：-v 后面是app文件及所在路径，-o后面则是存放的ipa文件名及预存放的位置

参考文档：

https://flutterchina.club/get-started/install/