Hi, all:
I'm a newbie to google app engine.
After install GAE eclipse plugin, and create a Google Web
application project, it immediately reports error: "Could not find the
main class: com.google.appengine.tools.enhancer.Enhance. Program
exit".
In the console:
Exception in thread "Main Thread" java.lang.NoClassDefFoundError:
com/google/appengine/tools/enhancer/Enhance
Caused by: java.lang.ClassNotFoundException:
com.google.appengine.tools.enhancer.Enhance
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
I tested this with Eclipse 3.6/3.5, GAE 1.4/1.3, both report above
error.
Run the guestbook provided in the SDK, it would report the
following error:
javax.jdo.JDOUserException: Persistent class "Class
guestbook.Greeting does not seem to have been enhanced. You may want
to rerun the enhancer and check for errors in the output." has no
table in the database, but the operation requires it. Please check the
specification of the MetaData for this class.
...
Caused by:
Persistent class "Class guestbook.Greeting does not seem to have been
enhanced. You may want to rerun the enhancer and check for errors in
the output." has no table in the database, but the operation requires
it. Please check the specification of the MetaData for this class.
org.datanucleus.store.exceptions.NoTableManagedException: Persistent
class "Class guestbook.Greeting does not seem to have been enhanced.
You may want to rerun the enhancer and check for errors in the
output." has no table in the database, but the operation requires it.
Please check the specification of the MetaData for this class.
Could anybody help on this, I would really very appreciate...
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