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how to fix error java.lang.NoClassDefFoundError: sqlj/framework/error/LogEntry [message #516741]

Wed, 24 February 2010 23:29

No real name

Messages: 2
Registered: February 2010

Junior Member

Hi

i am very new to Eclipse and I am trying to set up my evnironment. I have added my src code and external libraries, but when i try to run I get the error shown below and have no idea what to do.

Any help is greatly appreciated.

thanks

diane

java.lang.NoClassDefFoundError: sqlj/framework/error/LogEntry
Caused by: java.lang.ClassNotFoundException: sqlj.framework.error.LogEntry
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)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
Exception in thread "main"

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Re: how to fix error java.lang.NoClassDefFoundError: sqlj/framework/error/LogEntry [message #516993 is a reply to message #516741]

Thu, 25 February 2010 12:08

Eric Rizzo

Messages: 3070
Registered: July 2009

Senior Member

On 2/24/10 6:29 PM, dianeghir@hotmail.com wrote:
> Hi
>
> i am very new to Eclipse and I am trying to set up my evnironment. I
> have added my src code and external libraries, but when i try to run I
> get the error shown below and have no idea what to do.
>
> Any help is greatly appreciated.
>
> thanks
>
> diane
>
> java.lang.NoClassDefFoundError: sqlj/framework/error/LogEntry
> Caused by: java.lang.ClassNotFoundException: sqlj.framework.error.LogEntry
> 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)
> at java.lang.ClassLoader.loadClassInternal(Unknown Source)
> Exception in thread "main"

Keep in mind that the build (compile) classpath is separate from the
runtime classpath use to execute your program. If you're code is
compiling without errors, you've got the Build Path set correctly; but
errors like this during runtime indicate that the Launch Configuration
needs to be edited so that it includes all the necessary JARs.
Look in the Help > Help Contents for Launch Configuration and you'll
find out how to do that. Or, just poke around the Launch/Debug toolbar
item menus - I'm sure you can figure out how they work...

Hope this helps,
Eric

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Re: how to fix error java.lang.NoClassDefFoundError: sqlj/framework/error/LogEntry [message #517006 is a reply to message #516993]

Thu, 25 February 2010 17:28

No real name

Messages: 2
Registered: February 2010

Junior Member

Thanks Eric.

It turns out that when I first tried to run the app, I just left the default (**) in the 'Select Java Application' window so I guess it was trying to run all possible Apps. When I selected my own, it worked fine.

thanks again!

diane

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