<rant>

Why is it that every time a new version of GAE SDK comes out the old local 
development database becomes unusable. This time I got:

INFO: Failed to load from the backing store, 
/path/to/appengine-generated/local_db.bin
java.io.InvalidClassException: 
com.google.appengine.repackaged.com.google.io.protocol.ProtocolMessage; 
local class incompatible: stream classdesc serialVersionUID = 
-6214581437134474035, local class serialVersionUID = 5795572945429871714
at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:604)
at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1620)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1515)
at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1620)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1515)

It is 
very very very very very very very very very very very very very very very very 
very very very 
... very annoying having to rebuild the database each time a new version 
comes out. I do not have time to waste automating the rebuild. This is one 
of the reasons I skip some versions. Can this problem be solved?

</rant>

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