Question

我正在使用Xcode 9.4.1和Qt 5.11，目前有一个可运行的.pro文件，用于在iOS上运行我的Qt应用程序。

只是为了好玩，我想尝试qbs，因为我真的很喜欢语法。我现在尝试编写一个镜像.pro文件的.qbs文件。

一切都可以正常编译，但是在链接时，尝试运行ios-simulator时会遇到以下问题（与ios类似，但架构不同）：

Undefined symbols for architecture x86_64:
  "_AVAudioSessionCategoryPlayback", referenced from:
      -[MyClass enable] in MediaPlayer.mm.o
  "_MPMediaItemPropertyArtist", referenced from:
      -[MyClass setMediaInfo:artist:] in MediaPlayer.mm.o
  "_MPMediaItemPropertyTitle", referenced from:
      -[MyClass setMediaInfo:artist:] in MediaPlayer.mm.o
  "_OBJC_CLASS_$_AVAudioSession", referenced from:
      objc-class-ref in MediaPlayer.mm.o
  "_OBJC_CLASS_$_MPNowPlayingInfoCenter", referenced from:
      objc-class-ref in MediaPlayer.mm.o
  "_OBJC_CLASS_$_MPRemoteCommandCenter", referenced from:
      objc-class-ref in MediaPlayer.mm.o
ld: symbol(s) not found for architecture x86_64

我在.pro文件中为包含框架所做的工作是：

LIBS += -framework MediaPlayer -framework AVFoundation

对于我写的.qbs：

cpp.frameworks: base.concat(["MediaPlayer", "AVFoundation"])

also tried:

cpp.frameworkPaths: base.concat(["/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/System/Library/Frameworks"])
cpp.frameworks: base.concat(["MediaPlayer", "AVFoundation"])

and:

cpp.frameworks: ["MediaPlayer", "AVFoundation"]

我已经被这个问题困扰了几个小时，并且很难在网上和Github上找到类似用法的qbs文件。谁知道链接器为什么找不到框架？

编辑

我尝试使用qbs创建一个新项目，但遇到类似问题。这是完整的构建日志：

19:12:55: Running steps for project Test...
linking Test (x86_64, debug)
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -Wl,-arch,x86_64,-ios_simulator_version_min,10.0,-syslibroot,/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator11.4.sdk,-e,_qt_main_wrapper -stdlib=libc++ -L/Users/john/Qt/5.11.1/ios/lib -L/Users/john/Qt/5.11.1/ios/plugins/platforms -target x86_64-apple-ios10.0-macho -o /Users/john/build-Test-Qt_5_11_1_for_iOS_Simulator-Debug/qtc_Qt_5_11_1_for_iOS_Simulator_Debug/Test.eyJhcmNoaXRlY3R1cmUiOiJ4ODZfNjQiLCJidWlsZFZhcmlhbnQiOiJkZWJ1ZyJ9.260986be/.tmp/Test /Users/john/build-Test-Qt_5_11_1_for_iOS_Simulator-Debug/qtc_Qt_5_11_1_for_iOS_Simulator_Debug/Test.eyJhcmNoaXRlY3R1cmUiOiJ4ODZfNjQiLCJidWlsZFZhcmlhbnQiOiJkZWJ1ZyJ9.260986be/3a52ce780950d4d9/main.cpp.o /Users/john/build-Test-Qt_5_11_1_for_iOS_Simulator-Debug/qtc_Qt_5_11_1_for_iOS_Simulator_Debug/Test.eyJhcmNoaXRlY3R1cmUiOiJ4ODZfNjQiLCJidWlsZFZhcmlhbnQiOiJkZWJ1ZyJ9.260986be/3a52ce780950d4d9/qrc_qml.cpp.o -framework MobileCoreServices -framework Foundation -framework UIKit -framework CoreFoundation -framework Foundation -framework CoreFoundation -framework MobileCoreServices -framework Foundation -framework UIKit -framework CoreFoundation -framework CoreGraphics -framework Foundation -framework OpenGLES -framework CoreText -framework UIKit -framework QuartzCore -framework CoreText -framework CoreGraphics -framework Foundation -framework CoreFoundation -framework AudioToolbox -framework MobileCoreServices -framework Foundation -framework UIKit -framework CoreFoundation -framework Security -framework CoreFoundation -framework MobileCoreServices -framework Foundation -framework UIKit -framework CoreFoundation -framework Security -framework MobileCoreServices -framework Foundation -framework UIKit -framework CoreFoundation -framework Security -framework CoreGraphics -framework OpenGLES -framework CoreText -framework MobileCoreServices -framework Foundation -framework UIKit -framework CoreFoundation -framework Security -framework OpenGLES /Users/john/Qt/5.11.1/ios/lib/libQt5Core_debug.a -lz -lm -lm -lz -lqtpcre2_debug /Users/john/Qt/5.11.1/ios/lib/libQt5Gui_debug.a -lz -lm /Users/john/Qt/5.11.1/ios/lib/libQt5Core_debug.a -lm -lz -lqtpcre2_debug -lqtlibpng_debug -lqtharfbuzz_debug -lz /Users/john/Qt/5.11.1/ios/lib/libQt5Network_debug.a -lz -lm /Users/john/Qt/5.11.1/ios/lib/libQt5Core_debug.a -lm -lz -lqtpcre2_debug -lz /Users/john/Qt/5.11.1/ios/lib/libQt5Qml_debug.a @/Users/john/build-Test-Qt_5_11_1_for_iOS_Simulator-Debug/qtc_Qt_5_11_1_for_iOS_Simulator_Debug/Test.eyJhcmNoaXRlY3R1cmUiOiJ4ODZfNjQiLCJidWlsZFZhcmlhbnQiOiJkZWJ1ZyJ9.260986be/plugins.list.d -lz -lm /Users/john/Qt/5.11.1/ios/lib/libQt5Network_debug.a /Users/john/Qt/5.11.1/ios/lib/libQt5Core_debug.a -lm -lz -lqtpcre2_debug /Users/john/Qt/5.11.1/ios/lib/libQt5Quick_debug.a -lz -lm /Users/john/Qt/5.11.1/ios/lib/libQt5Qml_debug.a /Users/john/Qt/5.11.1/ios/lib/libQt5Gui_debug.a -lqtlibpng_debug -lqtharfbuzz_debug /Users/john/Qt/5.11.1/ios/lib/libQt5Network_debug.a /Users/john/Qt/5.11.1/ios/lib/libQt5Core_debug.a -lm -lz -lqtpcre2_debug /Users/john/Qt/5.11.1/ios/lib/libQt5Network_debug.a /Users/john/Qt/5.11.1/ios/lib/libQt5Core_debug.a -lm -lz -lqtpcre2_debug -framework MobileCoreServices -framework Foundation -framework UIKit -framework CoreFoundation -framework Foundation -framework CoreFoundation -framework MobileCoreServices -framework Foundation -framework UIKit -framework CoreFoundation -framework CoreGraphics -framework Foundation -framework OpenGLES -framework CoreText -framework UIKit -framework QuartzCore -framework CoreText -framework CoreGraphics -framework Foundation -framework CoreFoundation -framework AudioToolbox -framework MobileCoreServices -framework Foundation -framework UIKit -framework CoreFoundation -framework Security -framework CoreFoundation -framework MobileCoreServices -framework Foundation -framework UIKit -framework CoreFoundation -framework Security -framework MobileCoreServices -framework Foundation -framework UIKit -framework CoreFoundation -framework Security -framework CoreGraphics -framework OpenGLES -framework CoreText -framework MobileCoreServices -framework Foundation -framework UIKit -framework CoreFoundation -framework Security -framework OpenGLES
Undefined symbols for architecture x86_64:
  "_qt_main_wrapper", referenced from:
     implicit entry/start for main executable
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
Process failed with exit code 1.
The following products could not be built for configuration qtc_Qt_5_11_1_for_iOS_Simulator_Debug:
Test {"architecture":"x86_64","buildVariant":"debug"}
Error while building/deploying project Test (kit: Qt 5.11.1 for iOS Simulator)
When executing step "Qbs Build"
19:12:57: Elapsed time: 00:02.

我为macos和ios安装了Xcode 9.4.1，然后安装了Qt 5.11。

EDIT2

它在台式机上运行良好，但是当我切换到ios或ios-simulator时，在我的.qbs文件中收到此警告：

https://github.com/nippur72/SqlServerSocket

EDIT3

这是我为相关套件设置的qbs：

Answer 1

AFAIK，_qt_main_wrapper符号通过平台插件进入。因此，您可以自己添加依赖项：

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { FormsModule, ReactiveFormsModule } from '@angular/forms'
import { HttpModule } from '@angular/http'
import { Ng4LoadingSpinnerModule } from 'ng4-loading-spinner';

import { AppComponent } from './app.component';

@NgModule({
    declarations: [
        AppComponent
    ],
    imports: [
        BrowserModule,
        FormsModule,
        HttpModule,
        ReactiveFormsModule,
        Ng4LoadingSpinnerModule.forRoot() // Gives an error described above
    ],
    providers: [],
    bootstrap: [AppComponent]
})
export class AppModule { }

或者您可以使用QtGuiApplication项（而不是Product或CppApplication或您现在使用的任何项），它会自动处理此问题。

在iOS qbs项目中包括AVFoundation

1 个答案: