“Java.exe”以代码 1 退出（Proguard 问题）
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/38147828/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
"Java.exe" exited with code 1 (Proguard issue)
提问by Fran_gg7
I get the following error when I build my Xamarin.Android app in Release.
在 Release 中构建 Xamarin.Android 应用程序时出现以下错误。
"Java.exe" exited with code 1
Here is the output...
这是输出...
...
1> java.io.IOException: Can't read [C:\Users\FranciscoJavier\AppData\Local\Android\android-sdk\platforms\android-24\android.jar] (Can't process class [java/nio/charset/CharsetDecoder.class] (Unsupported class version number [52.0] (maximum 51.0, Java 1.7)))
1> at proguard.InputReader.readInput(InputReader.java:230)
1> at proguard.InputReader.readInput(InputReader.java:200)
1> at proguard.InputReader.readInput(InputReader.java:178)
1> at proguard.InputReader.execute(InputReader.java:100)
1> at proguard.ProGuard.readInput(ProGuard.java:196)
1> at proguard.ProGuard.execute(ProGuard.java:78)
1> at proguard.ProGuard.main(ProGuard.java:492)
1> Caused by: java.io.IOException: Can't process class [java/nio/charset/CharsetDecoder.class] (Unsupported class version number [52.0] (maximum 51.0, Java 1.7))
1> at proguard.io.ClassReader.read(ClassReader.java:112)
1> at proguard.io.FilteredDataEntryReader.read(FilteredDataEntryReader.java:87)
1> at proguard.io.JarReader.read(JarReader.java:65)
1> at proguard.io.DirectoryPump.readFiles(DirectoryPump.java:65)
1> at proguard.io.DirectoryPump.pumpDataEntries(DirectoryPump.java:53)
1> at proguard.InputReader.readInput(InputReader.java:226)
1> ... 6 more
1> Caused by: java.lang.UnsupportedOperationException: Unsupported class version number [52.0] (maximum 51.0, Java 1.7)
1> at proguard.classfile.util.ClassUtil.checkVersionNumbers(ClassUtil.java:140)
1> at proguard.classfile.io.LibraryClassReader.visitLibraryClass(LibraryClassReader.java:89)
1> at proguard.classfile.LibraryClass.accept(LibraryClass.java:301)
1> at proguard.io.ClassReader.read(ClassReader.java:86)
1> ... 11 more
1> Picked up JAVA_TOOL_OPTIONS: -Dfile.encoding=UTF8
1>C:\Program Files (x86)\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(2118,3): error MSB6006: "java.exe" exited with code 1.
1>Done executing task "Proguard" -- FAILED.
1>Done building target "_CompileToDalvikWithDx" in project "Elfo.VisionShop.Droid.csproj" -- FAILED.
1>
1>Build FAILED.
Reading the output messages it seems there is a problem with ProGuard, somebody know what can I do?
阅读输出消息似乎 ProGuard 有问题，有人知道我该怎么办吗？
回答by Oleg A
Just update proguard from official site http://proguard.sourceforge.net/(replace folder in $SDK_DIR/tools/proguard/)
只需从官方网站http://proguard.sourceforge.net/更新 proguard （替换 $SDK_DIR/tools/proguard/ 中的文件夹）
回答by giannisf
You can see the problem here:
你可以在这里看到问题：
Caused by: java.io.IOException: Can't process class [java/nio/charset/CharsetDecoder.class] (Unsupported class version number [52.0] (maximum 51.0, Java 1.7))
Solution:Change your Java target to 7 (1.7).
解决方案：将您的 Java 目标更改为 7 (1.7)。
回答by Manohar
**Error : while running app “Java.exe” exited with code**
I resolved this by manually overriding the java heap size: In Visual Studio:
我通过手动覆盖 java 堆大小解决了这个问题：在 Visual Studio 中：
- Right-click on Project
- Click on Android properties
- Click on Android Options
- Select Advanced tabthen Advanced android build settings
- Set Java Max Heap Size to 1G (or larger if needed)
- 右键单击项目
- 点击安卓属性
- 点击安卓选项
- 选择Advanced 选项卡，然后选择Advanced android build settings
- 将 Java Max Heap Size 设置为 1G（或根据需要更大）
The project now builds.
项目现在建立。
回答by tretom
Having the same problem, for me the following worked (well it's a specific situation causing this error - might be not the only one):
遇到同样的问题，对我来说，以下工作有效（这是导致此错误的特定情况 - 可能不是唯一的）：
Set Build Log verbosity to Detailed: in VS2017 -> Tools -> Options -> Projects and Solutions -> Build and Run ->MSBuild project build output verbosity -> Detailed (minimum)
将构建日志详细程度设置为详细：在 VS2017 中 -> 工具 -> 选项 -> 项目和解决方案 -> 构建和运行 ->MSBuild 项目构建输出详细程度 -> 详细（最低）
Start a build. In output log (eg. in output window) search for
开始构建。在输出日志中（例如在输出窗口中）搜索
proguard.ParseException:
proguard.ParseException：
if the log contains something like:
如果日志包含以下内容：
proguard.ParseException: Unknown option '′╗┐-keep' in line 1 of file 'proguard.cfg'
proguard.ParseException: 文件 'proguard.cfg' 的第 1 行中的未知选项 ''╗┐-keep'
then simply open your file in a text editor and save it without BOM.
然后只需在文本编辑器中打开您的文件并在没有 BOM 的情况下保存它。
eg. in Notepad++ Encoding -> Encode in UTF8 (make sure not to select Encode in UTF8-BOM) ...and save
例如。在 Notepad++ Encoding -> Encode in UTF8 (确保不要选择 Encode in UTF8-BOM) ...并保存
Rebuild your project/solution. It should work - at least it workd for me.
重建您的项目/解决方案。它应该有效 - 至少它对我有效。
