Maven编译HADOOP的common项目报错 。。。exec (compile-proto)。。。
[INFO] Apache Hadoop Annotations ......................... SUCCESS [4.657s]
[INFO] Apache Hadoop Auth ................................ SUCCESS [1.359s]
[INFO] Apache Hadoop Auth Examples ....................... SUCCESS [0.868s]
[INFO] Apache Hadoop Common .............................. FAILURE [1.065s]
[INFO] Apache Hadoop Common Project ...................... SKIPPED
[INFO] ------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------
[INFO] Total time: 8.685s
[INFO] Finished at: Sat Jan 19 05:09:38 CST 2013
[INFO] Final Memory: 12M/183M
[INFO] ------------------------------------
[ERROR] Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.2:exec (compile-proto) on project hadoop-common: Command execution failed. Process exited with an error: 1(Exit value: 1) -> [Help 1]

解决方法：

1，http://protobuf.googlecode.com/files/protobuf-2.4.1.tar.gz 下载

解压，进目录./configure --prefix=/usr/local
make
make check
sudo make install

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib

还是来张图：