Sounds like you have an older cassandra-env.sh that it's picking up from a system directory.
2011/10/26 Amit Schreiber <gno...@hotmail.com>: > > Hi, > After unpacking the 1.0.0 release and running: > apache-cassandra-1.0.0$ ./bin/cassandra -f > I get:Error opening zip file or JAR manifest missing : > ./bin/../lib/jamm-0.2.2.jarError occurred during initialization of VMagent > library failed to init: instrument > > A quick examination of the lib directory shows that the jamm library in there > is jamm-0.2.5.jar > Has anyone else encountered this? > Thanks,Amit > -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of DataStax, the source for professional Cassandra support http://www.datastax.com