MonoTouch Build: ld: symbol(s) not found for architecture armv7答案

【问题标题】：MonoTouch Build: ld: symbol(s) not found for architecture armv7MonoTouch Build: ld: symbol(s) not found for architecture armv7
【发布时间】：2012-06-19 16:07:02
【问题描述】：

我有一个在 i386/iOS 模拟器上构建和运行良好的 MonoTouch 项目。该项目引用了一个本机 (Obj-C) 库，我使用 Xamarin 的 BindingSample 中描述的 btouch 过程将其转换为 MonoTouch DLL：

https://github.com/xamarin/monotouch-samples/tree/eb640165f0485ff59b2f80e73ccff382bf4f2083/BindingSample/src/binding

所以我的 makefile 构建了所有三种架构（i386、armv6 和 armv7），然后将三个输出组合到一个“通用”库，最后使用 btouch 生成 MonoTouch DLL。

为了确保我的通用库包含所有三种架构，我检查了lipo -info，确实它包含 i386、armv6 和 armv7。

但是，当我在实际 iOS 设备上构建部署时，我收到以下错误：

Undefined symbols for architecture armv7:
  "_ABAddressBookCreate", referenced from:
      -[ContactsTokenField setupSms] in libContactsTokenFieldViewUniversal.a(ContactsTokenField.o)
      -[TITokenFieldView setupWithAddressType:prompt:] in libContactsTokenFieldViewUniversal.a(TITokenField.o)
  "_ABAddressBookCopyArrayOfAllPeople", referenced from:
      -[ContactsTokenField setupSms] in libContactsTokenFieldViewUniversal.a(ContactsTokenField.o)
      -[TITokenFieldView setupWithAddressType:prompt:] in libContactsTokenFieldViewUniversal.a(TITokenField.o)
  "_ABAddressBookGetPersonCount", referenced from:
      -[ContactsTokenField setupSms] in libContactsTokenFieldViewUniversal.a(ContactsTokenField.o)
      -[TITokenFieldView setupWithAddressType:prompt:] in libContactsTokenFieldViewUniversal.a(TITokenField.o)
  "_ABRecordCopyValue", referenced from:
      -[ContactsTokenField setupSms] in libContactsTokenFieldViewUniversal.a(ContactsTokenField.o)
      -[TITokenFieldView setupWithAddressType:prompt:] in libContactsTokenFieldViewUniversal.a(TITokenField.o)
  "_kABPersonFirstNameProperty", referenced from:
      -[ContactsTokenField setupSms] in libContactsTokenFieldViewUniversal.a(ContactsTokenField.o)
      -[TITokenFieldView setupWithAddressType:prompt:] in libContactsTokenFieldViewUniversal.a(TITokenField.o)
      -[ContactsTokenField setupSms] in libContactsTokenFieldViewUniversal.a(ContactsTokenField.o)
      -[TITokenFieldView setupWithAddressType:prompt:] in libContactsTokenFieldViewUniversal.a(TITokenField.o)
  "_kABPersonLastNameProperty", referenced from:
      -[ContactsTokenField setupSms] in libContactsTokenFieldViewUniversal.a(ContactsTokenField.o)
      -[TITokenFieldView setupWithAddressType:prompt:] in libContactsTokenFieldViewUniversal.a(TITokenField.o)
      -[ContactsTokenField setupSms] in libContactsTokenFieldViewUniversal.a(ContactsTokenField.o)
      -[TITokenFieldView setupWithAddressType:prompt:] in libContactsTokenFieldViewUniversal.a(TITokenField.o)
  "_ABMultiValueGetCount", referenced from:
      -[TITokenFieldView setupWithAddressType:prompt:] in libContactsTokenFieldViewUniversal.a(TITokenField.o)
  "_ABMultiValueCopyLabelAtIndex", referenced from:
      -[TITokenFieldView setupWithAddressType:prompt:] in libContactsTokenFieldViewUniversal.a(TITokenField.o)
  "_ABMultiValueCopyValueAtIndex", referenced from:
      -[TITokenFieldView setupWithAddressType:prompt:] in libContactsTokenFieldViewUniversal.a(TITokenField.o)
  "_kABPersonEmailProperty", referenced from:
      -[TITokenFieldView setupWithAddressType:prompt:] in libContactsTokenFieldViewUniversal.a(TITokenField.o)
  "_kABPersonPhoneProperty", referenced from:
      -[TITokenFieldView setupWithAddressType:prompt:] in libContactsTokenFieldViewUniversal.a(TITokenField.o)
ld: symbol(s) not found for architecture armv7
collect2: ld returned 1 exit status

mtouch exited with code 1

我做错了什么？

【问题讨论】：

标签： ios xamarin.ios armv7

【解决方案1】：

发现问题：原生库依赖于AddressBook框架，忘记包含在API定义项目的AssemblyInfo.cs中：

[assembly: LinkWith ("libContactsTokenFieldViewUniversal.a", LinkTarget.Simulator | LinkTarget.ArmV6 | LinkTarget.ArmV7, ForceLoad = true, Frameworks="AddressBook Foundation")]

【讨论】：

哇，我差点放弃了。谢谢！
经过漫长而痛苦的搜索后，这一点信息让我走上了正轨。谢谢。