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Java Java Data Structures Efficiency! Building the Model

Mark VonGyer
Mark VonGyer
21,239 Points
Posted by Mark VonGyer
Mark VonGyer
21,239 Points

Exception in thread "main"

Exception in thread "main" java.lang.NoClassDefFoundError: com/teamtreehou se/model/Song
at Karaoke.main(Karaoke.java:7)
Caused by: java.lang.ClassNotFoundException: com.teamtreehouse.model.Song at java.net.URLClassLoader$1.run(URLClassLoader.java:372)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:360)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

Got this at the end of the progress of video.

File compiled fine, but when it went to run I got a critical error.

1 Answer

Michael Hess
Michael Hess
24,512 Points
Michael Hess
Michael Hess
24,512 Points

Hi Mark,

One thing I notice is that there is a space in your package import: Exception in thread "main" java.lang.NoClassDefFoundError: com/teamtreehou se/model/Song

There is a space between the u and s of house. If you change that, you may not have the issue you're describing.

Check line 7 of Karaoke.main

Hope this helps :)