现在的公司好久没接触到大数据项目了，怕自己忘记了，所以在下班时间自己找了个小项目试一试，中间只遇到了一个问题，就是软件兼容性问题
1、所有的scala类都已经存在
经过多方了解可能是scala的版本过高了，所以从2.11.12换成了2.10.0，此问题得到了解决
2、编译报错
Error:scalac: Error: org.jetbrains.jps.incremental.scala.remote.ServerException
Error compiling the sbt component 'compiler-interface-2.10.0-52.0'
at sbt.internal.inc.AnalyzingCompiler$.handleCompilationError$1(AnalyzingCompiler.scala:331)
at sbt.internal.inc.AnalyzingCompiler$.$anonfun$compileSources$4(AnalyzingCompiler.scala:346)
at sbt.internal.inc.AnalyzingCompiler$.$anonfun$compileSources$4$adapted(AnalyzingCompiler.scala:341)
at sbt.io.IO$.withTemporaryDirectory(IO.scala:332)
at sbt.io.IO$.withTemporaryDirectory(IO.scala:340)
at sbt.internal.inc.AnalyzingCompiler$.$anonfun$compileSources$2(AnalyzingCompiler.scala:341)
at sbt.internal.inc.AnalyzingCompiler$.$anonfun$compileSources$2$adapted(AnalyzingCompiler.scala:335)
at sbt.io.IO$.withTemporaryDirectory(IO.scala:332)
at sbt.io.IO$.withTemporaryDirectory(IO.scala:340)
at sbt.internal.inc.AnalyzingCompiler$.compileSources(AnalyzingCompiler.scala:335)
at org.jetbrains.jps.incremental.scala.local.CompilerFactoryImpl$.getOrCompileInterfaceJar(CompilerFactoryImpl.scala:124)
at org.jetbrains.jps.incremental.scala.local.CompilerFactoryImpl.$anonfun$getScalac$1(CompilerFactoryImpl.scala:49)
at scala.Option.map(Option.scala:146)
at org.jetbrains.jps.incremental.scala.local.CompilerFactoryImpl.getScalac(CompilerFactoryImpl.scala:47)
at org.jetbrains.jps.incremental.scala.local.CompilerFactoryImpl.createCompiler(CompilerFactoryImpl.scala:25)
at org.jetbrains.jps.incremental.scala.local.CachingFactory.$anonfun$createCompiler$3(CachingFactory.scala:24)
at org.jetbrains.jps.incremental.scala.local.Cache.$anonfun$getOrUpdate$2(Cache.scala:20)
at scala.Option.getOrElse(Option.scala:121)
at org.jetbrains.jps.incremental.scala.local.Cache.getOrUpdate(Cache.scala:19)
at org.jetbrains.jps.incremental.scala.local.CachingFactory.createCompiler(CachingFactory.scala:24)
at org.jetbrains.jps.incremental.scala.local.LocalServer.compile(LocalServer.scala:22)
at org.jetbrains.jps.incremental.scala.remote.Main$.make(Main.scala:68)
at org.jetbrains.jps.incremental.scala.remote.Main$.nailMain(Main.scala:25)
at org.jetbrains.jps.incremental.scala.remote.Main.nailMain(Main.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.martiansoftware.nailgun.NGSession.run(NGSession.java:319)
似乎又是scala的版本问题。。。。
把scala的版本由2.10.0升级到2.10.5问题又一次得到解决，为什么kafka的兼容性这么差。。。。
不知道还有些什么问题在前方等着我