我在scala中有一些代码：
def main(args: Array[String]): Unit = {
if (args.length < 1) {
println("Must specify the path to config file ")
println("Usage progname <path to config file> ")
return
}
val url = args(0)
val config = ConfigFactory.load(url)
val host = config.getString(hostname)
val conf = new SparkConf(true).setAppName(appName)
.set("spark.cassandra.connection.host", host)
val sc = new SparkContext(conf)
logger.info("Got the path as %s".format(url))
(sc, config)
.....
.....
但是当我试图运行时，出现以下错误：
Exception in thread "main" com.typesafe.config.ConfigException$Missing: No configuration setting found for key 'MyTestCode'
at com.typesafe.config.impl.SimpleConfig.findKey(SimpleConfig.java:124)
at com.typesafe.config.impl.SimpleConfig.find(SimpleConfig.java:147)
at com.typesafe.config.impl.SimpleConfig.find(SimpleConfig.java:159)
at com.typesafe.config.impl.SimpleConfig.find(SimpleConfig.java:164)
at com.typesafe.config.impl.SimpleConfig.getString(SimpleConfig.java:206)
at com.test.replicator.events.MyTestCode$.main(MyTestCode.scala:45)
at com.test.replicator.events.MyTestCode.main(MyTestCode.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
错误正在排队。
val host = config.getString(hostname)
如何解决问题。是Jar未找到问题还是代码错误？