Error: Main class HashMap could not be found or loaded 问题描述: Java创建项目默认包名与创建的包名冲突而报错 原因分析: Java创建项目默认包名是com.company与直接创建的类名冲突 解决方案: 需要改两处: 点击idea里面的workspace.xml找到对应的<option name="MAIN_CLASS_NAME"value=“com.company”/>默认的co...
4)执行Main方法出现以下异常 Error: A JNI error has occurred, please check your installation andtryagain Exception in thread"main" java.lang.NoClassDefFoundError: javax/servlet/http/HttpServletRequest at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods(Class...
</dependency> 4)执行Main方法出现以下异常 Error: A JNI error has occurred, please check your installation andtryagain Exception in thread"main" java.lang.NoClassDefFoundError: javax/servlet/http/HttpServletRequest at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDecla...
使用idea创建了一个Java project 设置到在运行的时候 一直提示 错误:无法加载主类 原因:java.lang.ClassNotFoundException 解决办法: 1.在IDEA右上角点击蓝色的标志 2.点击Modules–>Paths–>选择Use module compile output path 3.将 红色区域内的路径 换成你的实际项... ...
lang.Class.getMethod(Class.java:1784) at sun.launcher.LauncherHelper.validateMainClass(LauncherHelper.java:544) at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:526) Caused by: java.lang.ClassNotFoundException: org.apache.flink.api.common.functions.MapFunction at java.net.URLClass...
Exception in thread"main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mvcContentNegotiationManager': Lookup method resolution failed; nested exception is java.lang.IllegalStateException: Failed to introspect Class [org.springframework.web.accept.ContentNegotiationMa...
at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at org.jetbrains.jps.builders.impl.java.JavacCompilerTool.createCompiler(JavacCompilerTool.java:70) at org.jetbrains.jps.javac.JavacMain.compile(JavacMain.java:63) ...
在IDEA中直接运行main方法时遇到 Error: A JNI error has occurred, please check your installation and try again Exception in thread "main" java.lang.NoClassDefFoundError: javax/servlet/http/HttpServletRequest at java.lang.Class.getDeclaredMethods0(Native Method) ...
Method(Class.java:1668) at sun.launcher.LauncherHelper.getMainMethod(LauncherHelper.java:494) at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:486) Caused by: java.lang.ClassNotFoundException: com.google.common.util.concurrent.FutureCallback at java.net.URLClassLoader$1.run(URLClass...
java.lang.ClassNotFoundException:微软的SQL服务器驱动程序 由于某种原因,SQL Server JDBC库仍然没有添加...