Android Studio 3.1 构建失败，gradle 4.4 类签名者信息

Build failed in Android Studio 3.1, gradle 4.4 class signer information does not match signer information of other classes in the same package(Android Studio 3.1 构建失败，gradle 4.4 类签名者信息与同包中其他类的签名者信息不匹配)

问题描述

我正在使用 libgdx 在 Android Studio 3.1 中创建一个项目，但我无法构建我的项目，因为它说:

I'm making a project in Android Studio 3.1 with libgdx and i can't build my project because it says:

class "org.bouncycastle.jcajce.provider.symmetric.IDEA$Mappings"'s signer information does not match signer information of other classes in the same package

但我不使用bouncycastle"之类的我检查了很多关于这个问题的页面和主题，但我没有找到任何解决方案.我也没有任何 jar 文件，我从来没有尝试过签名，我只是想建立我的项目请帮帮我，我真的坚持下去了

But i don't use "bouncycastle" or something I checked a lot pages and topics about this problem but i didn't find any solutions for this. Also i haven't any jar files and i never tried to sign something, i'm only trying to build my project Please help me guys, i really stuck at it

推荐答案

更新:Java 10.0.2 与 GDX 1.9.8 有问题，所以我降级到 Java 8，一切都按预期工作.如果您安装了最新的 Java 10，请卸载并下载并安装 Java 8 版本.

Update: Java 10.0.2 was having issues with GDX 1.9.8 so I downgraded to Java 8 and everything is working as expected. If you installed the latest Java 10, uninstall and download and install the java 8 version.

旧评价:

我最近在使用 android 3.1.4 和当前版本的 libgdx(jar 下载于 09/xx/2018)时遇到了这个问题.

I've recently encountered this issue with android 3.1.4 and a current version of libgdx(jar downloaded on 09/xx/2018).

环境:全新安装的 Windows 7 Ultimate + sp1 + 便利汇总，gdx-setup.jar(2018 年 9 月 xx 日)，+ Android Studio 3.1.4(全新安装)，java 10.0.2.

Environment: Freshly installed Windows 7 Ultimate + sp1 + convenience rollup, gdx-setup.jar(September xx, 2018), + Android Studio 3.1.4(clean install), java 10.0.2.

问题重现:gdx-setup.jar 用我更新的build-tools"+api"生成了一个项目，但该项目没有在 Android Studio 中编译并产生最初发布的错误.

Problem reproduced: gdx-setup.jar with my updated "build-tools" + "api" produced a project, but the project did not compile in Android Studio and produced the error originally posted.

进程:gdx-setup.jar 及其默认 build-tools(27.0.3) 和默认 api(27) 将产生关于不正确 api 28 > 27 的错误，这可能与某些无关，但新安装Android Studio 3.1.4 可能会遇到这种情况.使用 Android studio sdk-manager(工具选项卡)并下载 27.0.3 build-tools 和 sdk-tools(确保检查显示包详细信息"以查看可见性).安装上述内容并在默认值下重新运行 gdx-set.jar 后，我能够生成项目，甚至可以在 Android Studio 上编译/运行.

Process: gdx-setup.jar with its default build-tools(27.0.3) and default api(27) will produce an error about incorrect api 28 > 27, which may not be relevant to some, but new installations of Android Studio 3.1.4 may encounter this. Used Android studio sdk-manager(tools tab) and downloaded 27.0.3 build-tools and sdk-tools (make sure the "Show package details" is checked for visibility). After installing the above and rerunning gdx-set.jar on defaults, I was able to produce the project and even compile/run on Android studio.

GDX 的临时解决方案(2018 年 9 月):确保 Android Studio 具有:build-tools 27.0.3 + sdk-tools 27，并使用工具的默认值创建 gdx 项目(创建 gdx 项目时两个提示均否).

Temporary Solution for GDX(September 2018): Ensure Android Studio has: build-tools 27.0.3 + sdk-tools 27, and create the gdx project using defaults for tools (No to both prompts when creating gdx project).

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