我正在尝试将apache POI库与我的android应用程序集成。为此，我将apache poi jar文件添加到了我的libs文件夹中，并使用"编译文件"通过build.gradle进行编译。但当我进行渐变同步时，它没有问题。在进行渐变同步后，当我尝试运行应用程序时，我收到错误Execution Failed For task"：app:preDexDebug"。
我见过以下类似的问题，但没有用。
错误：任务'；的执行失败：app:preDexDebug'；
https://stackoverflow.com/questions/27437049/android-studio-gradle-execution-failed-for-task-apppredexdebug
以下是我的等级依赖：
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
compile 'com.android.support:appcompat-v7:22.1.1'
compile files('libs/poi-3.12-20150511.jar')
compile files('libs/poi-ooxml-3.12-20150511.jar')
compile files('libs/poi-ooxml-schemas-3.12-20150511.jar')
compile files('libs/xmlbeans-2.6.0.jar')
}
错误消息：
Error:Execution failed for task ':app:preDexDebug'.
> com.android.ide.common.process.ProcessException:org.gradle.process.internal.ExecException:
Process 'command 'C:Program FilesJavajdk1.8.0_31binjava.exe''
finished with non-zero exit value 1
渐变控制台输出：
:app:compileDebugNdk UP-TO-DATE
:app:compileDebugSources
:app:preDexDebug
AGPBI: {"kind":"SIMPLE","text":"warning: Ignoring InnerClasses attribute for an anonymous inner class","position":{},"original":"warning: Ignoring InnerClasses attribute for an anonymous inner class"}
AGPBI: {"kind":"SIMPLE","text":"(org.apache.xmlbeans.XmlBeans$1) that doesnu0027t come with an","position":{},"original":"(org.apache.xmlbeans.XmlBeans$1) that doesnu0027t come with an"}
AGPBI: {"kind":"SIMPLE","text":"associated EnclosingMethod attribute. This class was probably produced by a","position":{},"original":"associated EnclosingMethod attribute. This class was probably produced by a"}
AGPBI: {"kind":"SIMPLE","text":"compiler that did not target the modern .class file format. The recommended","position":{},"original":"compiler that did not target the modern .class file format. The recommended"}
AGPBI: {"kind":"SIMPLE","text":"solution is to recompile the class from source, using an up-to-date compiler","position":{},"original":"solution is to recompile the class from source, using an up-to-date compiler"}
AGPBI: {"kind":"SIMPLE","text":"and without specifying any "-target" type options. The consequence of ignoring","position":{},"original":"and without specifying any "-target" type options. The consequence of ignoring"}
AGPBI: {"kind":"SIMPLE","text":"this warning is that reflective operations on this class will incorrectly","position":{},"original":"this warning is that reflective operations on this class will incorrectly"}
AGPBI: {"kind":"SIMPLE","text":"indicate that it is *not* an inner class.","position":{},"original":"indicate that it is *not* an inner class."}
AGPBI: {"kind":"SIMPLE","text":"warning: Ignoring InnerClasses attribute for an anonymous inner class","position":{},"original":"warning: Ignoring InnerClasses attribute for an anonymous inner class"}
AGPBI: {"kind":"SIMPLE","text":"(org.apache.xmlbeans.XmlSimpleList$1) that doesnu0027t come with an","position":{},"original":"(org.apache.xmlbeans.XmlSimpleList$1) that doesnu0027t come with an"}
AGPBI: {"kind":"SIMPLE","text":"associated EnclosingMethod attribute. This class was probably produced by a","position":{},"original":"associated EnclosingMethod attribute. This class was probably produced by a"}
AGPBI: {"kind":"SIMPLE","text":"compiler that did not target the modern .class file format. The recommended","position":{},"original":"compiler that did not target the modern .class file format. The recommended"}
AGPBI: {"kind":"SIMPLE","text":"solution is to recompile the class from source, using an up-to-date compiler","position":{},"original":"solution is to recompile the class from source, using an up-to-date compiler"}
AGPBI: {"kind":"SIMPLE","text":"and without specifying any "-target" type options. The consequence of ignoring","position":{},"original":"and without specifying any "-target" type options. The consequence of ignoring"}
AGPBI: {"kind":"SIMPLE","text":"this warning is that reflective operations on this class will incorrectly","position":{},"original":"this warning is that reflective operations on this class will incorrectly"}
AGPBI: {"kind":"SIMPLE","text":"indicate that it is *not* an inner class.","position":{},"original":"indicate that it is *not* an inner class."}
AGPBI: {"kind":"SIMPLE","text":"warning: Ignoring InnerClasses attribute for an anonymous inner class","position":{},"original":"warning: Ignoring InnerClasses attribute for an anonymous inner class"}
AGPBI: {"kind":"SIMPLE","text":"(org.apache.xmlbeans.XmlSimpleList$2) that doesnu0027t come with an","position":{},"original":"(org.apache.xmlbeans.XmlSimpleList$2) that doesnu0027t come with an"}
AGPBI: {"kind":"SIMPLE","text":"associated EnclosingMethod attribute. This class was probably produced by a","position":{},"original":"associated EnclosingMethod attribute. This class was probably produced by a"}
AGPBI: {"kind":"SIMPLE","text":"compiler that did not target the modern .class file format. The recommended","position":{},"original":"compiler that did not target the modern .class file format. The recommended"}
AGPBI: {"kind":"SIMPLE","text":"solution is to recompile the class from source, using an up-to-date compiler","position":{},"original":"solution is to recompile the class from source, using an up-to-date compiler"}
AGPBI: {"kind":"SIMPLE","text":"and without specifying any "-target" type options. The consequence of ignoring","position":{},"original":"and without specifying any "-target" type options. The consequence of ignoring"}
AGPBI: {"kind":"SIMPLE","text":"this warning is that reflective operations on this class will incorrectly","position":{},"original":"this warning is that reflective operations on this class will incorrectly"}
AGPBI: {"kind":"SIMPLE","text":"indicate that it is *not* an inner class.","position":{},"original":"indicate that it is *not* an inner class."}
AGPBI: {"kind":"SIMPLE","text":"warning: Ignoring InnerClasses attribute for an anonymous inner class","position":{},"original":"warning: Ignoring InnerClasses attribute for an anonymous inner class"}
AGPBI: {"kind":"SIMPLE","text":"(org.apache.xmlbeans.impl.regex.SchemaRegularExpression$1) that doesnu0027t come with an","position":{},"original":"(org.apache.xmlbeans.impl.regex.SchemaRegularExpression$1) that doesnu0027t come with an"}
AGPBI: {"kind":"SIMPLE","text":"associated EnclosingMethod attribute. This class was probably produced by a","position":{},"original":"associated EnclosingMethod attribute. This class was probably produced by a"}
AGPBI: {"kind":"SIMPLE","text":"compiler that did not target the modern .class file format. The recommended","position":{},"original":"compiler that did not target the modern .class file format. The recommended"}
AGPBI: {"kind":"SIMPLE","text":"solution is to recompile the class from source, using an up-to-date compiler","position":{},"original":"solution is to recompile the class from source, using an up-to-date compiler"}
AGPBI: {"kind":"SIMPLE","text":"and without specifying any "-target" type options. The consequence of ignoring","position":{},"original":"and without specifying any "-target" type options. The consequence of ignoring"}
AGPBI: {"kind":"SIMPLE","text":"this warning is that reflective operations on this class will incorrectly","position":{},"original":"this warning is that reflective operations on this class will incorrectly"}
AGPBI: {"kind":"SIMPLE","text":"indicate that it is *not* an inner class.","position":{},"original":"indicate that it is *not* an inner class."}
AGPBI: {"kind":"SIMPLE","text":"warning: Ignoring InnerClasses attribute for an anonymous inner class","position":{},"original":"warning: Ignoring InnerClasses attribute for an anonymous inner class"}
AGPBI: {"kind":"SIMPLE","text":"(org.apache.xmlbeans.impl.regex.SchemaRegularExpression$2) that doesnu0027t come with an","position":{},"original":"(org.apache.xmlbeans.impl.regex.SchemaRegularExpression$2) that doesnu0027t come with an"}
AGPBI: {"kind":"SIMPLE","text":"associated EnclosingMethod attribute. This class was probably produced by a","position":{},"original":"associated EnclosingMethod attribute. This class was probably produced by a"}
AGPBI: {"kind":"SIMPLE","text":"compiler that did not target the modern .class file format. The recommended","position":{},"original":"compiler that did not target the modern .class file format. The recommended"}
AGPBI: {"kind":"SIMPLE","text":"solution is to recompile the class from source, using an up-to-date compiler","position":{},"original":"solution is to recompile the class from source, using an up-to-date compiler"}
AGPBI: {"kind":"SIMPLE","text":"and without specifying any "-target" type options. The consequence of ignoring","position":{},"original":"and without specifying any "-target" type options. The consequence of ignoring"}
AGPBI: {"kind":"SIMPLE","text":"this warning is that reflective operations on this class will incorrectly","position":{},"original":"this warning is that reflective operations on this class will incorrectly"}
AGPBI: {"kind":"SIMPLE","text":"indicate that it is *not* an inner class.","position":{},"original":"indicate that it is *not* an inner class."}
AGPBI: {"kind":"SIMPLE","text":"warning: Ignoring InnerClasses attribute for an anonymous inner class","position":{},"original":"warning: Ignoring InnerClasses attribute for an anonymous inner class"}
AGPBI: {"kind":"SIMPLE","text":"(org.apache.xmlbeans.impl.regex.SchemaRegularExpression$3) that doesnu0027t come with an","position":{},"original":"(org.apache.xmlbeans.impl.regex.SchemaRegularExpression$3) that doesnu0027t come with an"}
AGPBI: {"kind":"SIMPLE","text":"associated EnclosingMethod attribute. This class was probably produced by a","position":{},"original":"associated EnclosingMethod attribute. This class was probably produced by a"}
AGPBI: {"kind":"SIMPLE","text":"compiler that did not target the modern .class file format. The recommended","position":{},"original":"compiler that did not target the modern .class file format. The recommended"}
AGPBI: {"kind":"SIMPLE","text":"solution is to recompile the class from source, using an up-to-date compiler","position":{},"original":"solution is to recompile the class from source, using an up-to-date compiler"}
AGPBI: {"kind":"SIMPLE","text":"and without specifying any "-target" type options. The consequence of ignoring","position":{},"original":"and without specifying any "-target" type options. The consequence of ignoring"}
AGPBI: {"kind":"SIMPLE","text":"this warning is that reflective operations on this class will incorrectly","position":{},"original":"this warning is that reflective operations on this class will incorrectly"}
AGPBI: {"kind":"SIMPLE","text":"indicate that it is *not* an inner class.","position":{},"original":"indicate that it is *not* an inner class."}
AGPBI: {"kind":"SIMPLE","text":"warning: Ignoring InnerClasses attribute for an anonymous inner class","position":{},"original":"warning: Ignoring InnerClasses attribute for an anonymous inner class"}
AGPBI: {"kind":"SIMPLE","text":"(org.apache.xmlbeans.impl.schema.SchemaTypeLoaderImpl$SchemaTypeLoaderCache$1) that doesnu0027t come with an","position":{},"original":"(org.apache.xmlbeans.impl.schema.SchemaTypeLoaderImpl$SchemaTypeLoaderCache$1) that doesnu0027t come with an"}
AGPBI: {"kind":"SIMPLE","text":"associated EnclosingMethod attribute. This class was probably produced by a","position":{},"original":"associated EnclosingMethod attribute. This class was probably produced by a"}
AGPBI: {"kind":"SIMPLE","text":"compiler that did not target the modern .class file format. The recommended","position":{},"original":"compiler that did not target the modern .class file format. The recommended"}
AGPBI: {"kind":"SIMPLE","text":"solution is to recompile the class from source, using an up-to-date compiler","position":{},"original":"solution is to recompile the class from source, using an up-to-date compiler"}
AGPBI: {"kind":"SIMPLE","text":"and without specifying any "-target" type options. The consequence of ignoring","position":{},"original":"and without specifying any "-target" type options. The consequence of ignoring"}
AGPBI: {"kind":"SIMPLE","text":"this warning is that reflective operations on this class will incorrectly","position":{},"original":"this warning is that reflective operations on this class will incorrectly"}
AGPBI: {"kind":"SIMPLE","text":"indicate that it is *not* an inner class.","position":{},"original":"indicate that it is *not* an inner class."}
AGPBI: {"kind":"SIMPLE","text":"warning: Ignoring InnerClasses attribute for an anonymous inner class","position":{},"original":"warning: Ignoring InnerClasses attribute for an anonymous inner class"}
AGPBI: {"kind":"SIMPLE","text":"(org.apache.xmlbeans.impl.validator.ValidatingXMLInputStream$1) that doesnu0027t come with an","position":{},"original":"(org.apache.xmlbeans.impl.validator.ValidatingXMLInputStream$1) that doesnu0027t come with an"}
失败
失败：生成失败，出现异常。
哪里出了问题：任务"：app:preDexDebug"的执行失败。
com.android.ide.common.prrocess.ProcessException：org.gradle.prrocess.internal.ExecException：进程"命令"C:\Program Files\Java\jdk1.8.0_31\bin\Java.exe"以非零退出值1 结束
尝试：使用--stacktrace选项运行以获取堆栈跟踪。使用--info或--debug选项运行以获得更多日志输出。
生成失败的
总时间：22.982秒
在过去的两天里，我一直被这个错误所困扰，最后我选择了在android应用程序中搜索创建excel表的替代方法。
我尝试过使用"aspose"库，与"apachePoi"one_answers"jxl"库相比，它非常容易使用。
"Aspose"库的链接以及如何在android项目中使用。
http://www.aspose.com/android/total-component.aspx
https://github.com/asposecells/Aspose_Cells_Android
感谢在这种情况下帮助我的每一个人。
-
您是否尝试了以下顺序（按顺序）：使缓存失效&重启=>渐变同步=>渐变清理=>渐变构建？
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在文件=>项目结构=>SDK位置：您是否将JDK位置设置为指向JDK 7的有效安装？
-
你在模块的build.gradle中有这个吗？它触发了错误：
android { ... compileOptions { sourceCompatibility JavaVersion.VERSION_1_7 targetCompatibility JavaVersion.VERSION_1_7 } }