.class nao executa

e ai galera tudo bom?

eu nao consigo executar meu .class pelo prompt mais pelo netbeans ele executa.

eu abro o prompt e do o comando java e da o seguinte erro:

C:\Users\Vinicius\Documents\NetBeansProjects\Cliente>java build\classes\Talk.cla

ss

Exception in thread “main” java.lang.NoClassDefFoundError: build\classes\Talk/cl

ass

Caused by: java.lang.ClassNotFoundException: build\classes\Talk.class

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:307)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)

at java.lang.ClassLoader.loadClass(ClassLoader.java:248)

Could not find the main class: build\classes\Talk.class.  Program will exit.