error when building HIPI helloworld program

[Phanindra Reddy]

hduser@sagar-Inspiron-3542:~/examples/helloWorld$ gradle jar

FAILURE: Build failed with an exception.

* Where:
Build file '/home/hduser/examples/helloWorld/build.gradle' line: 1

* What went wrong:
A problem occurred evaluating root project 'helloWorld'.
> Could not find method jar() for arguments [build_6266dqvoc8lxxbdh2crmgyohb$_run_closure1@6be42bcf] on root project 'helloWorld'.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

Total time: 7.618 secs


can anyone help me on this
thankyou

[Rahul Shah]

try adding "apply plugin: java" to build.gradle

[Phanindra Reddy]

thank you Rahul Shah for your suggesion but this gives the following error even though i added hadoop-common-2.7.1.jar as a classpath
hduser@sagar-Inspiron-3542:~/examples/helloWorld$ gradle jar
:compileJava
/home/hduser/examples/helloWorld/src/main/java/org/hipi/examples/HelloWorld.java:3: error: package org.apache.hadoop.conf does not exist
import org.apache.hadoop.conf.Configured;
                             ^
/home/hduser/examples/helloWorld/src/main/java/org/hipi/examples/HelloWorld.java:4: error: package org.apache.hadoop.util does not exist
import org.apache.hadoop.util.Tool;
                             ^
/home/hduser/examples/helloWorld/src/main/java/org/hipi/examples/HelloWorld.java:5: error: package org.apache.hadoop.util does not exist
import org.apache.hadoop.util.ToolRunner;
                             ^
/home/hduser/examples/helloWorld/src/main/java/org/hipi/examples/HelloWorld.java:7: error: cannot find symbol
public class HelloWorld extends Configured implements Tool {
                                ^
  symbol: class Configured
/home/hduser/examples/helloWorld/src/main/java/org/hipi/examples/HelloWorld.java:7: error: cannot find symbol
public class HelloWorld extends Configured implements Tool {
                                                      ^
  symbol: class Tool
/home/hduser/examples/helloWorld/src/main/java/org/hipi/examples/HelloWorld.java:15: error: cannot find symbol
    ToolRunner.run(new HelloWorld(), args);
    ^
  symbol:   variable ToolRunner
  location: class HelloWorld
6 errors
:compileJava FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':compileJava'.
> Compilation failed; see the compiler error output for details.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

Total time: 5.616 secs

[Rahul Shah]

How are you adding the jar to the classpath? using gradle or libjar option?

Regards,

Rahul Shah

[Piyush Jha]

 did you solve the problem?I am also getting same problem.pls share if you solved it..

[Piyush Jha]

somebody pls help me with this

[Swapna Patil]

1) Create a folder lib under examples/HelloWorld/lib and copy the following files (depending on your Hadoop version) into the lib folder:

- hadoop-common-2.8.4.jar

- hadoop-common-2.8.4-tests.jar

- hadoop-nfs-2.8.4.jar

2) Terminal: hadoop@master:~/examples/helloWorld$ gradle init

3) Now, edit the build.gradle file:

apply plugin: 'java'

dependencies {

    compile files(fileTree(dir: 'lib', includes: ['*.jar']))

}

jar {

  manifest {

    attributes("Main-Class": "org.hipi.examples.HelloWorld")

  }

  from configurations.runtime.collect { zipTree(it) }

}

4) This is what my settings.gradle file looks like:

rootProject.name = 'helloWorld'

5) Terminal: hadoop@master:~/examples/helloWorld$  gradle jar

6) Terminal: hadoop@master:~/examples/helloWorld$  hadoop jar build/libs/helloWorld.jar