警告主要版本 52 比 51 新，这是此编译器支持的最高主要版本 [英] Warning major version 52 is newer than 51, the highest major version supported by this compiler

问题描述

基本上我是超级新手，开始在 IT 公司实习.我用 Xamarin 安装了 VS.我面临的问题非常令人沮丧.因此，即使我创建空项目，我也无法编译它并出现如下错误:

Basicly I'm super newbie and started internship in IT company. I installed VS with Xamarin. The problem that I'm facing is very frustrating. So even when i create empty project I can't compile it and get error like this :

严重性代码描述项目文件行抑制状态警告主版本 52 比 51 更新，这是此编译器支持的最高主版本.

Severity Code Description Project File Line Suppression State Warning major version 52 is newer than 51, the highest major version supported by this compiler.

我在谷歌上搜索并询问了很多人，但仍然没有解决我的问题.如果有人可以通过Skype或teamwiever帮助我，我会非常感激.我的 skype:toniterdal，欢迎加我.

I searched all over google and asked so many people and still no fix of my problem. If anybody can help me via skype or teamwiever i will APPRECIATE so much. My skype: toniterdal , feel free to add me.

推荐答案

我遇到了同样的问题，我的头发都快掉光了.我安装了 JDK 版本 8，但这些警告不会消失，最终它们生成了破坏构建的错误.

I was having the same issue, and tearing my hair out. I had the JDK Version 8 installed, but these warnings wouldn't go away, and eventually they generated a build-breaking error.

当我转到工具 -> 选项 -> Xamarin 并查看 Android 设置时，Java 开发工具包位置指向 Program Files (x86) 中的 jdk.1.7.xxxx.

When I went to Tools -> Options -> Xamarin, and looked at the Android Settings, the Java Development Kit Location was pointing to jdk.1.7.xxxx, in Program Files (x86).

我在 Program Files 中将其更改为 1.8.0_101.然后我重新启动了Visual Studio，同样的错误又发生了.不知何故，Visual Studio 正在检测 JDK 的第 7 版并自动将其指向.

I changed it to 1.8.0_101, in Program Files. Then I restarted Visual Studio, and the same error happened again. Somehow, Visual Studio was detecting Version 7 of the JDK and pointing it to that automatically.

结果证明解决方案非常简单.除了安装 JDK 的第 8 版，卸载 JDK 的第 7 版.我这样做后，结果证明 Xamarin 的表现要好得多.这一步解决了一大堆看似无关的问题.

So the solution turned out to be very simple. As well as installing Version 8 of the JDK, UNINSTALL Version 7 of the JDK. As soon as I did that, Xamarin turned out to be much better behaved. This step solved a whole bunch of seemingly unrelated problems.

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