MyEclipse运行Java出错：could not find the main class:test.program will exit(导入项目)

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MyEclipse运行Java出错：could not find the main class:test.program will exit(导入项目)

自己新建的项目运行没有任何问题.但是我导入的很早以前别人写的项目,然后run就会弹框could not find the main class:test.program will exit 请确认JAVA编译器和JRE版本一致右键点击项目--->>>preference-->>>JAVA compiler 查看编译器版本右键点击项目--->>>build path--->>>Configure build path--->&g…

编译运行java程序出现Exception in thread "main" java.lang.UnsupportedClassVersionError: M : Unsupported major.minor version 51.0

用javac编译了一个M.java文件, 然后用java M执行,可是出现了下面这个错误. Exception in thread "main" java.lang.UnsupportedClassVersionError: M : Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(C…

java virtual machine launcher Error：Could not create the Java Virtual Machine. Error:A Fatal exception has occurred,Program will exit.

Error:Could not create the Java Virtual Machine. Error:A Fatal exception has occurred,Program will exit. 出现以上错误信息提示,如下图所示: 然后点击确定弹出以下错误信息解决办法: 1.判断机子是否安装了Java环境.具体方法网上搜吧,这里还是给小白一个传送门:(设置) 注意设置自己的环境变量:如JAVA_HOME,CLASSPATH,PATH 2.有些程序会有内存设置,有些程序内存设置过大…

Kafka中错误：Unrecognized VM option ‘UseCompressedOops’ Error: Clould not create the Java Vritual Machine. Error: A fatal exception has occurres . Program will exit.

错误的描述: 在kafka安装目录下,执行 $ bin/zookeeper-server-start.sh config/zookeeper.properties & Unrecognized VM option 'UseCompressedOops' Error: Clould not create the Java Vritual Machine. Error: A fatal exception has occurres . Program will exit. 解决方法: 找到bin/k…