“sudo apt-get remove hadoop” is not removing package

I am trying to uninstall Cloudera Hadoop from my Ubuntu System. For this I tried sudo apt-get remove hadoop command but this command is failing with following message:

ubuntu@ip-10-82-19-71:~/cluster-deployer/src$ sudo apt-get remove hadoop
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package hadoop is not installed, so not removed
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
 hadoop-hdfs-datanode : Depends: hadoop-hdfs (= 2.5.0+cdh5.3.0+781-1.cdh5.3.0.p0.54~precise-cdh5.3.0) but it is not going to be installed
 hadoop-hdfs-namenode : Depends: hadoop-hdfs (= 2.5.0+cdh5.3.0+781-1.cdh5.3.0.p0.54~precise-cdh5.3.0) but it is not going to be installed
 hadoop-yarn-nodemanager : Depends: hadoop-yarn (= 2.5.0+cdh5.3.0+781-1.cdh5.3.0.p0.54~precise-cdh5.3.0) but it is not going to be installed
 hadoop-yarn-resourcemanager : Depends: hadoop-yarn (= 2.5.0+cdh5.3.0+781-1.cdh5.3.0.p0.54~precise-cdh5.3.0) but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

Initially this command was not working so I killed one yarn process usking kill -9 <pid> and then executed above command but now I am not able to uninstall anything nor I am able to remove anything 🙁

What should I do next?

Answer

Attribution
Source : Link , Question Author : Shekhar , Answer Author : l0b0