Junit报错：java.lang.ClassNotFoundException: com.taotao.controller.TestPageHelper

异常：

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Class not found com.taotao.controller.TestPageHelper  
java.lang.ClassNotFoundException: com.taotao.controller.TestPageHelper  
 at java.net.URLClassLoader$1.run(URLClassLoader.java:202)  
 at java.security.AccessController.doPrivileged(Native Method)  
 at java.net.URLClassLoader.findClass(URLClassLoader.java:190)  
 at java.lang.ClassLoader.loadClass(ClassLoader.java:306)  
 at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)  
 at java.lang.ClassLoader.loadClass(ClassLoader.java:247)  
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.loadClass(RemoteTestRunner.java:693)  
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.loadClasses(RemoteTestRunner.java:429)  
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:452)  
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)  
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)  
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)  

解决办法：

只要把Java-------->compiler------->building------->Buil path problems -------> incomplete build path 和 Circular dependencies改成warning就可以了。