1. Running

Java Runtime Environment (JRE) version Java SE 7 or newer is required to run GameGround client.

Both GameGround server and client are continuously in active development, it is expected that sooner or later you will encounter one of the following messages while trying to connect to the server:

• The GameGround server reported error condition: Your client version is not supported.
• The client you are running is outdated by ...

Both messages mean more or less the same: new version of client and/or server has been released and especially client version you are currently running has been superseded by newer one.

First message is definitive, some change in the protocol has been introduced which renders old client unusable and you have no other choice but to upgrade to newest version. Second message is just a notification that some minor improvements were introduced to the client and new and possibly better version is available for download. In latter case you are not bound to upgrade right away but you are strongly encouraged to do so.

How to upgrade.

To upgrade GameGround client you need to clear Java caches.

There are several ways to do that depending on the vendor of JRE you are using:

• First you can try to start jcontrol, then navigate to Settings... and there click Delete Files... button and finally confirm in the popup that follows.
• If procedure above fails, you can try to run "javaws -uninstall" from your command prompt.

If none of the above works for you, you need to consult your particular JRE vendor documentation on how to clear its cache.