To help other folks who might be having the same troubles as me, this gist helped me downgrade protobuf:
https://gist.github.com/gcatlin/1847248 On Sun, Jul 28, 2013 at 5:00 PM, James Carman <ja...@carmanconsulting.com> wrote: > Okay, cool. That's what I figured. I'll try to figure out how to > install specific versions using homebrew and move on down the road. > Thanks! > > On Sun, Jul 28, 2013 at 4:22 PM, Ted Yu <yuzhih...@gmail.com> wrote: >> Protobuf 2.5 isn't compatible with 2.4.1 which is the standard used by >> Hadoop 2.0 >> >> On Jul 28, 2013, at 1:13 PM, James Carman <ja...@carmanconsulting.com> wrote: >> >>> I am on Mac OS X. I've installed protobuf 2.5.0 using homebrew. >>> However, I'm getting errors like this: >>> >>> [ERROR] Failed to execute goal >>> org.apache.maven.plugins:maven-compiler-plugin:2.5.1:compile >>> (default-compile) on project hadoop-common: Compilation failure: >>> Compilation failure: >>> [ERROR] >>> /Users/jcarman/IdeaProjects/hadoop/hadoop-common-project/hadoop-common/target/generated-sources/java/org/apache/hadoop/ipc/protobuf/RpcHeaderProtos.java:[1486,37] >>> cannot find symbol >>> [ERROR] symbol : class Parser >>> [ERROR] location: package com.google.protobuf >>> [ERROR] >>> /Users/jcarman/IdeaProjects/hadoop/hadoop-common-project/hadoop-common/target/generated-sources/java/org/apache/hadoop/ipc/protobuf/RpcHeaderProtos.java:[1497,30] >>> cannot find symbol >>> >>> Is this because protobuf is generating source code using a newer >>> version and some of the classes aren't there? >>> >>> >>> On Sun, Jul 28, 2013 at 10:15 AM, Ted Yu <yuzhih...@gmail.com> wrote: >>>> You should be using libprotoc 2.4.1 >>>> >>>> Cheers >>>> >>>> On Sun, Jul 28, 2013 at 7:08 AM, James Carman >>>> <jcar...@carmanconsulting.com>wrote: >>>> >>>>> Is there anything special I have to do to get the build working on my >>>>> local machine? I have installed protocol buffers and I of course have >>>>> Maven/JDK. I am getting compiler errors relating to protobuf. Do I need >>>>> a >>>>> different version in my local Maven repository? >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>
