Ubuntu – Install oracle-java7-installer showing error

Run the following commands from a Terminal:

sudo rm /var/lib/dpkg/info/oracle-java7-installer*
sudo apt-get purge oracle-java7-installer*
sudo rm /etc/apt/sources.list.d/*java*
sudo apt-get update
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java7-installer

Information about what PPAs are, as well as tips on recognizing which of them are unsafe, can be found here.

Glossary

Command, command line: the traditional Unix environment , where you type commands to tell the computer what to do.

Terminal: an application that allows you to access the command line. Open it by hitting its keyboard shortcut, Ctrl Alt T

Well looks like this is an old question but no one has answered it yet so... better late than never I guess. I've been ripping my hair out over this too. Like you most boards just tell me too use open-jdk. what most people don't seem to understand that open-jdk and jdk-7 are not one to one mappings of each other and many tools relied upon by developers simply don't work with open-jdk. ANYWAY...

I found a solution which solved the problem for me. Hopefully it will work for you.

sudo rm /var/lib/dpkg/info/oracle-java7-installer* 

sudo apt-get purge oracle-java7-installer

sudo rm /etc/apt/sources.list.d/*java* 

sudo apt-get update 

sudo add-apt-repository ppa:webupd8team/java 

sudo apt-get update 

sudo apt-get install oracle-java7-installer