QtCreator甚至不能构建空项目——在执行这一行时出现了以下错误

Question

我从Qt creator那里得到了一些非常无用的错误，我刚刚在Qt网站上使用教程安装了这些错误。

-dex:
      [dex] input: D:\techsys\build-androidtest-Android_for_armeabi_v7a_GCC_4_9_Qt_5_5_1-Debug\android-build\bin\classes
      [dex] input: D:\techsys\build-androidtest-Android_for_armeabi_v7a_GCC_4_9_Qt_5_5_1-Debug\android-build\libs\QtAndroid-bundled.jar
      [dex] input: D:\techsys\build-androidtest-Android_for_armeabi_v7a_GCC_4_9_Qt_5_5_1-Debug\android-build\libs\QtAndroidAccessibility-bundled.jar
      [dex] Pre-Dexing D:\techsys\build-androidtest-Android_for_armeabi_v7a_GCC_4_9_Qt_5_5_1-Debug\android-build\libs\QtAndroid-bundled.jar -> QtAndroid-bundled-15710ac48ee3b8e0790e2c0724eced85.jar
       [dx] Error occurred during initialization of VM
       [dx] Could not reserve enough space for object heap
       [dx] Error: Could not create the Java Virtual Machine.
       [dx] Error: A fatal exception has occurred. Program will exit.

BUILD FAILED
C:\Users\mareda\AppData\Local\Android\android-sdk\tools\ant\build.xml:888: The following error occurred while executing this line:
C:\Users\mareda\AppData\Local\Android\android-sdk\tools\ant\build.xml:890: The following error occurred while executing this line:
C:\Users\mareda\AppData\Local\Android\android-sdk\tools\ant\build.xml:902: The following error occurred while executing this line:
C:\Users\mareda\AppData\Local\Android\android-sdk\tools\ant\build.xml:283: null returned: 1

Total time: 1 second
Building the android package failed!
  -- For more information, run this command with --verbose.
11:50:50: The process "C:\Qt\android.5.5.1\5.5\android_armv7\bin\androiddeployqt.exe" exited with code 14.
Error while building/deploying project androidtest (kit: Android for armeabi-v7a (GCC 4.9, Qt 5.5.1))
When executing step "Build Android APK"
11:50:50: Elapsed time: 00:05.

我真的不明白这是什么意思。这是我的配置：

我还尝试选择使用Gradle而不是Ant。没影响什么。特别让我抓狂的是这个尴尬的错误:< code >在执行这一行时出现了以下错误:没有提到任何实际的错误。

Answer 1

问题与内存有关。您必须在系统上有足够的RAM。如果没有，请添加大交换。这将允许dx完成构建而不会在中间死亡。我在小型VPS节点上面临这个问题。现在它已经修复了。

Answer 2

以下是如何修复它：

Go to Start->Control Panel->System->Advanced(tab)->Environment Variables->System Variables->New:
Variable name: _JAVA_OPTIONS
Variable value: -Xmx512M



Variable name: Path
Variable value: ;C:\Program Files\Java\jre6\bin;F:\JDK\bin;
Change this to your appropriate path.