这里移动了lib folder中的snapshot jar在运行flume命令后得到这个错误，即
user@ubuntu用法：~/hadoop\u store/apache-flume-1.4.0-bin/bin$。/flume ng agent-n twitteragent-c conf-f../conf/twitter1.conf
也试过了
user@ubuntu用法：~/hadoop\u store/apache-flume-1.4.0-bin/bin$。/flume ng agent-n twitteragent-c conf-f/home/user/hadoop\u store/apache-flume-1.4.0-bin/conf/twitter1.conf
因为在一个类似的问题中，它被提到了，下面是它的确切说法

16/12/08 04:41:26 INFO source.DefaultSourceFactory: Creating instance of source Twitter, type org.apache.flume.source.twitter.TwitterSource
16/12/08 04:41:26 ERROR node.PollingPropertiesFileConfigurationProvider: Failed to load configuration data. Exception follows.
org.apache.flume.FlumeException: Unable to load source type: org.apache.flume.source.twitter.TwitterSource, class: org.apache.flume.source.twitter.TwitterSource
    at org.apache.flume.source.DefaultSourceFactory.getClass(DefaultSourceFactory.java:67)
    at org.apache.flume.source.DefaultSourceFactory.create(DefaultSourceFactory.java:40)
    at org.apache.flume.node.AbstractConfigurationProvider.loadSources(AbstractConfigurationProvider.java:327)
    at org.apache.flume.node.AbstractConfigurationProvider.getConfiguration(AbstractConfigurationProvider.java:102)
    at org.apache.flume.node.PollingPropertiesFileConfigurationProvider$FileWatcherRunnable.run(PollingPropertiesFileConfigurationProvider.java:140)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
    at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: org.apache.flume.source.twitter.TwitterSource
    at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:195)
    at org.apache.flume.source.DefaultSourceFactory.getClass(DefaultSourceFactory.java:65)
    ... 11 more

这是我的twitter1.conf文件，有什么错误吗

# Naming the components on the current agent.

TwitterAgent.sources = Twitter 
TwitterAgent.channels = MemChannel 
TwitterAgent.sinks = HDFS

# Describing/Configuring the source

TwitterAgent.sources.Twitter.type = org.apache.flume.source.twitter.TwitterSource
TwitterAgent.sources.Twitter.consumerKey = ###
TwitterAgent.sources.Twitter.consumerSecret = ###
TwitterAgent.sources.Twitter.accessToken = ###
TwitterAgent.sources.Twitter.accessTokenSecret = ###
TwitterAgent.sources.Twitter.keywords = lalalala

# Describing/Configuring the sink

TwitterAgent.sinks.HDFS.type = hdfs 
TwitterAgent.sinks.HDFS.hdfs.path = hdfs://localhost:8020/user/Hadoop/twitter_data/
TwitterAgent.sinks.HDFS.hdfs.fileType = DataStream 
TwitterAgent.sinks.HDFS.hdfs.writeFormat = Text 
TwitterAgent.sinks.HDFS.hdfs.batchSize = 1000
TwitterAgent.sinks.HDFS.hdfs.rollSize = 0 
TwitterAgent.sinks.HDFS.hdfs.rollCount = 10000 

# Describing/Configuring the channel

TwitterAgent.channels.MemChannel.type = memory 
TwitterAgent.channels.MemChannel.capacity = 10000 
TwitterAgent.channels.MemChannel.transactionCapacity = 100

# Binding the source and sink to the channel

TwitterAgent.sources.Twitter.channels = MemChannel
TwitterAgent.sinks.HDFS.channel = MemChannel

搞不懂这里出了什么问题