请教：显示上传成功板子却没更新
参考以下贴，用arduino IDE 来玩STM32，却总是不能更新板子。https://www.geek-workshop.com/thread-27452-1-1.html
应该是电脑的问题：相同方法与下载的档案，用家里的笔记本安装一次就成功了。
提示好象是java版本不对，哪位大神指导一下吧。百度很久也没弄好（刚刚重装1.8.8的新IDE也是一样）。
java.lang.UnsupportedClassVersionError: CliTemplate/CliMain : Unsupported major.minor version 51.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$000(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
Could not find the main class: CliTemplate.CliMain. Program will exit.
Exception in thread "main"
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