我正在尝试通过命令行运行程序，但遇到上述异常。我已经通过cmd对其进行了编译，一切正常。我也在Eclipse中正常运行该程序。为什么我从命令行获取此异常？
完全例外：
Error: A JNI error has occurred, please check your installation and try again
Exception in thread “main” java.lang.NoClassDefFoundError:
org/openqa/selenium/Capabilities
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
at java.lang.Class.privateGetMethodRecursive(Class.java:3048)
at java.lang.Class.getMethod0(Class.java:3018)
at java.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.openqa.selenium.Capabilities
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
… 7 more