Java/minecraft problems

Question

so i'm trying to install minecraft on Ubuntu 16.04 and i installed minecraft.jar cant run it it is excutive so it should run but it dos'nt java's file is there but it cant run either any suggestions?

Solution

Should be an easy fix.

Use your file manager to find the Minecraft.jar and right-click on it. Choose Properties. Click on the Permissions tab and look down the list where it says Execute: Make sure the box is checked for "Allow executing file as a program." Close the properties window and now try double-clicking the Minecraft.jar file. If java is installed, it should start the launcher.

If you get any kind of error, you may need to install Java. An easy way to do that is to open a terminal window by pressing Ctrl+Alt+T. Then type the following pressing enter after each line (enter your password if asked):

sudo apt update
sudo apt install default-jre

That should install the basic java runtime. Try double-clicking on the minecraft.jar file again. If it still doesn't run, then reboot and try double-clicking again. Just make sure that executable checkbox is checked.

If you get some weird bugs in your window, open the terminal again (Ctrl+Alt+T) and run this:

sudo update-ca-certificates --fresh

and press enter. After entering your password, it should update your certificates and after running it again it should then work. Just a heads up because I had to do it for some weird reason. :)

Good luck!

Comments

[James]

Sorry for the lengthy answer. I've used this on multiple Ubuntu systems and it has yet to fail me, so I'm just making sure I don't miss any details. :D

[Ste1n]

Thanks java did not install right i guess (i downloaded it from java's website not through terminal)