Error please help!

When trying to run chapter 15 KeyView in the Terminal I get this message: Exception in thread "main" java.lang.Error: Do not use KeyView.setLayout() use KeyView.getContentPane().setLayout() insteadwhaat does this mean.
[225 byte] By [CompilerCama] at [2007-10-2 14:24:12]
# 1
It's telling you to change your code from: KeyView.setLayout() to: KeyView.getContentPane().setLayout()
ChuckBinga at 2007-7-13 12:43:15 > top of Java-index,Developer Tools,Debugging and Profiling Tool APIs...
# 2
That did not work, it kept saying other things were wrong, but thanks for the help anyway.
CompilerCama at 2007-7-13 12:43:15 > top of Java-index,Developer Tools,Debugging and Profiling Tool APIs...
# 3
> That did not work, it kept saying other things were> wrong, but thanks for the help anyway.Then that problem was resolved, and you have additional problems.
ChuckBinga at 2007-7-13 12:43:15 > top of Java-index,Developer Tools,Debugging and Profiling Tool APIs...