Exception in thread "main" java.lang.NoSuchMethodError: org.testng.TestNG.configure(Lorg/testng/CommandLineArgs;)V

TestNG运行时报以下错误：

Exception in thread "main" java.lang.NoSuchMethodError: org.testng.TestNG.configure(Lorg/testng/CommandLineArgs;)V
    at org.testng.remote.AbstractRemoteTestNG.configure(AbstractRemoteTestNG.java:77)
    at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:214)
    at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:76)

Exception in thread "main" java.lang.NoClassDefFoundError: org/testng/CommandLineArgs
    at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:41)
Caused by: java.lang.ClassNotFoundException: org.testng.CommandLineArgs
    at java.net.URLClassLoader$1.run(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)
    ... 1 more