java backtrace trying to get cassandra started with seeds

gistfile1.txt

ubuntu@domU-12-31-39-0F-76-61:/usr/share/cassandra$ sudo /etc/sv/cassandra/run 
/etc/sv/cassandra/run: 32: source: not found

Error: Exception thrown by the agent : java.rmi.server.ExportException: Port already in use: 12345; nested exception is: 
        java.net.BindException: Address already in use
ubuntu@domU-12-31-39-0F-76-61:/usr/share/cassandra$ sudo /etc/sv/cassandra/run 
/etc/sv/cassandra/run: 32: source: not found

Error: Exception thrown by the agent : java.rmi.server.ExportException: Port already in use: 12345; nested exception is: 
        java.net.BindException: Address already in use
ubuntu@domU-12-31-39-0F-76-61:/usr/share/cassandra$ sudo /etc/sv/cassandra/run 
/etc/sv/cassandra/run: 32: source: not found

 INFO 01:03:59,519 JVM vendor/version: Java HotSpot(TM) Client VM/1.6.0_26
 INFO 01:03:59,522 Heap size: 129761280/1672478720
 INFO 01:03:59,522 Classpath: /etc/cassandra:/usr/share/cassandra/lib:/usr/share/cassandra/apache-cassandra.jar:/usr/share/cassandra/lib/antlr-3.2.jar:/usr/share/cassandra/lib/avro-1.4.0-fixes.jar:/usr/share/cassandra/lib/avro-1.4.0-sources-fixes.jar:/usr/share/cassandra/lib/commons-cli-1.1.jar:/usr/share/cassandra/lib/commons-codec-1.2.jar:/usr/share/cassandra/lib/commons-lang-2.4.jar:/usr/share/cassandra/lib/compress-lzf-0.8.4.jar:/usr/share/cassandra/lib/concurrentlinkedhashmap-lru-1.2.jar:/usr/share/cassandra/lib/guava-r08.jar:/usr/share/cassandra/lib/high-scale-lib-1.1.2.jar:/usr/share/cassandra/lib/jackson-core-asl-1.4.0.jar:/usr/share/cassandra/lib/jackson-mapper-asl-1.4.0.jar:/usr/share/cassandra/lib/jamm-0.2.5.jar:/usr/share/cassandra/lib/jline-0.9.94.jar:/usr/share/cassandra/lib/json-simple-1.1.jar:/usr/share/cassandra/lib/libthrift-0.6.jar:/usr/share/cassandra/lib/log4j-1.2.16.jar:/usr/share/cassandra/lib/servlet-api-2.5-20081211.jar:/usr/share/cassandra/lib/slf4j-api-1.6.1.jar:/usr/share/cassandra/lib/slf4j-log4j12-1.6.1.jar:/usr/share/cassandra/lib/snakeyaml-1.6.jar:/usr/share/cassandra/lib/snappy-java-1.0.4.1.jar
 INFO 01:03:59,524 JNA not found. Native methods will be disabled.
 INFO 01:03:59,533 Loading settings from file:/etc/cassandra/cassandra.yaml
ERROR 01:03:59,637 Fatal configuration error error
Can't construct a java object for tag:yaml.org,2002:org.apache.cassandra.config.Config; exception=Cannot create property=seed_provider for JavaBean=org.apache.cassandra.config.Config@97a560; java.lang.reflect.InvocationTargetException
 in "<reader>", line 10, column 1:
    cluster_name: 'CassandraStaging_ ... 
    ^

        at org.yaml.snakeyaml.constructor.Constructor$ConstructYamlObject.construct(Constructor.java:372)
        at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:177)
        at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:136)
        at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:122)
        at org.yaml.snakeyaml.Loader.load(Loader.java:52)
        at org.yaml.snakeyaml.Yaml.load(Yaml.java:166)
        at org.apache.cassandra.config.DatabaseDescriptor.<clinit>(DatabaseDescriptor.java:133)
        at org.apache.cassandra.service.AbstractCassandraDaemon.setup(AbstractCassandraDaemon.java:131)
        at org.apache.cassandra.service.AbstractCassandraDaemon.activate(AbstractCassandraDaemon.java:356)
        at org.apache.cassandra.thrift.CassandraDaemon.main(CassandraDaemon.java:107)
Caused by: org.yaml.snakeyaml.error.YAMLException: Cannot create property=seed_provider for JavaBean=org.apache.cassandra.config.Config@97a560; java.lang.reflect.InvocationTargetException
        at org.yaml.snakeyaml.constructor.Constructor$ConstructMapping.constructJavaBean2ndStep(Constructor.java:305)
        at org.yaml.snakeyaml.constructor.Constructor$ConstructMapping.construct(Constructor.java:184)
        at org.yaml.snakeyaml.constructor.Constructor$ConstructYamlObject.construct(Constructor.java:370)
        ... 9 more
Caused by: org.yaml.snakeyaml.error.YAMLException: java.lang.reflect.InvocationTargetException
        at org.yaml.snakeyaml.constructor.Constructor$ConstructSequence.construct(Constructor.java:589)
        at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:177)
        at org.yaml.snakeyaml.constructor.Constructor$ConstructMapping.constructJavaBean2ndStep(Constructor.java:298)
        ... 11 more
Caused by: java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
        at org.yaml.snakeyaml.constructor.Constructor$ConstructSequence.construct(Constructor.java:587)
        ... 13 more
Caused by: java.lang.NullPointerException
        at org.apache.cassandra.config.SeedProviderDef.<init>(SeedProviderDef.java:34)
        ... 18 more
null; Can't construct a java object for tag:yaml.org,2002:org.apache.cassandra.config.Config; exception=Cannot create property=seed_provider for JavaBean=org.apache.cassandra.config.Config@97a560; java.lang.reflect.InvocationTargetException
Invalid yaml; unable to start server.  See log for stacktrace.