# Install URSIM-3.14.3 for Linux on Ubuntu 20.04 with Java 11

**URL:** <https://forum.universal-robots.com/t/install-ursim-3-14-3-for-linux-on-ubuntu-20-04-with-java-11/12409>\
**Category:** Technical Questions\
**Created:** [February 18, 2021, 11:33am UTC](https://forum.universal-robots.com/t/install-ursim-3-14-3-for-linux-on-ubuntu-20-04-with-java-11/12409 "2021-02-18T11:33:51Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![anon85906168](https://avatars.discourse-cdn.com/v4/letter/a/b4bc9f/32.png) [@anon85906168](https://forum.universal-robots.com/u/anon85906168)\
**Post date:** [February 18, 2021, 11:33am UTC](https://forum.universal-robots.com/t/install-ursim-3-14-3-for-linux-on-ubuntu-20-04-with-java-11/12409/1 "2021-02-18T11:33:51Z")

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Hello,  
has anyone succussful installed the URSIM 3.14.3 on Ubuntu 20.04 with Java 11 ?  
(… The simulator has been tested on …Ubuntu 14.04 based…)  
If I want to install URSIM I have some issues:

1. Install.sh shows that Java 11 ist too old, but it’s the newest version !!!  
I have solved it by modifing the install.sh script: …“if version\>1.6” to “if version\>0”…  
Then I can start the installation.

2. Install.sh want to install libcurl3, but that ist old.  
I have solved it by modifing the install.sh script: …“libcurl3” to “libcurl4”…

3. After that I can start the install process, but at the and I have no Start-Icon.  
If I want to start URSIM with start-ursim.sh it seems to start, but Java hangs and URSIM doesn’t start.

What can I do to run URSIM 3.14.3 on Ubuntu 20.04 with Java 11 ?

Thank you

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<div class="post-metadata">

**Author:** ![anon48554506](https://avatars.discourse-cdn.com/v4/letter/a/4491bb/32.png) [@anon48554506](https://forum.universal-robots.com/u/anon48554506)\
**Post date:** [April 27, 2021, 10:19pm UTC](https://forum.universal-robots.com/t/install-ursim-3-14-3-for-linux-on-ubuntu-20-04-with-java-11/12409/2 "2021-04-27T22:19:52Z")

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I ran into this issue, where both the start up script and the run script have an invalid version check for Java.

As I didn’t need Java 11, I solved this by uninstalling Java 11 and then installing Java 8 prior to running the install script.

This worked for me on Ubuntu 18.04