Hadoop imports cannot be resolved in eclipse - hadoop

import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.Text;
Learning hadoop programming from scratch.
I have written above line of code in eclipse.
it is showing error as "import org.apache.hadoop.io. cannot be resolved.".
I have already added external jar file "Hadoop-mapreduce-client-core-2.7.3,jar"
Is there anything else to add ?


In your all the dependents jar needs to be added, a single jar file wont help.
Try Using Maven.
Dependency is available on below link.
https://mvnrepository.com/artifact/org.apache.hadoop/hadoop-core/1.2.1


1) Convert the project to a maven project if it's not yet.Project>Configure>Convert to maven project.
2)Add this dependency :
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-core</artifactId>
<version>1.2.1</version>
</dependency>
This should resolve your errors. This worked for me!

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