无法链接 ALAssetsLibrary答案

【问题标题】：Unable to link ALAssetsLibrary无法链接 ALAssetsLibrary
【发布时间】：2012-06-23 20:10:06
【问题描述】：

我正在努力在我的代码中链接 ALAssetsLibrary。

我对此进行了很多谷歌搜索，并遵循了不止一个教程到最后一个点，但我仍然是我开始的地方。

Ld /Users/vedprakash/Library/Developer/Xcode/DerivedData/PickThumb-gmvprlkgmgexedeojbaoeidbadnw/Build/Products/Debug-iphonesimulator/PickThumb.app/PickThumb normal i386
    cd "/Users/vedprakash/Documents/XCode Projects/PickThumb"
    setenv MACOSX_DEPLOYMENT_TARGET 10.6
    setenv PATH "/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
    /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/clang -arch i386 -isysroot /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.0.sdk -L/Users/vedprakash/Library/Developer/Xcode/DerivedData/PickThumb-gmvprlkgmgexedeojbaoeidbadnw/Build/Products/Debug-iphonesimulator -F/Users/vedprakash/Library/Developer/Xcode/DerivedData/PickThumb-gmvprlkgmgexedeojbaoeidbadnw/Build/Products/Debug-iphonesimulator -filelist /Users/vedprakash/Library/Developer/Xcode/DerivedData/PickThumb-gmvprlkgmgexedeojbaoeidbadnw/Build/Intermediates/PickThumb.build/Debug-iphonesimulator/PickThumb.build/Objects-normal/i386/PickThumb.LinkFileList -mmacosx-version-min=10.6 -Xlinker -objc_abi_version -Xlinker 2 -Xlinker -no_implicit_dylibs -D__IPHONE_OS_VERSION_MIN_REQUIRED=50000 -framework UIKit -framework Foundation -framework CoreGraphics -o /Users/vedprakash/Library/Developer/Xcode/DerivedData/PickThumb-gmvprlkgmgexedeojbaoeidbadnw/Build/Products/Debug-iphonesimulator/PickThumb.app/PickThumb

Undefined symbols for architecture i386:
  "_OBJC_CLASS_$_ALAssetsLibrary", referenced from:
      objc-class-ref in PickThumbViewController.o
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)

【问题讨论】：

标签： ios5 alassetslibrary

【解决方案1】：

您需要将AssetsLibrary 框架添加到PickThumb 目标的“Link Binary With Libraries”构建阶段。

How to "add existing frameworks" in Xcode 4?

【讨论】：

添加后我收到此错误：ld: warning: ignoring file /Users/vedprakash/Documents/XCode Projects/PickThumb/AssetsLibrary.framework/AssetsLibrary, file was built for unsupported file format which is not the architecture being linked (i386)
这不是AssetsLibrary 框架的正确位置。我认为您没有按照链接中的说明进行操作。
我已经在链接中添加了框架，并且该库显示在“Link Binary with Libraries”下的列表中
如果你正确添加了链接命令，它应该是-framework AssetsLibrary。它不应该有以/AssetsLibrary 结尾的路径。
谢谢罗伯:)。我删除并添加了库并成功构建。

【解决方案2】：

我刚刚在 Xcode 10.2 中添加了

AssetsLibrary.framework

在 Target>Build Phases> Link Binary With Libraries 部分

【讨论】：