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If you follow the instructions in the Getting Eclipse guide, you will set up an eclipse installation with the current target platform activated.

However, the guide was updates updated in the past and there was a version where you may be have been instructed to download the setup file onto your computer and register its local file path in Oomph. Only then you should have a look at the following section because your eclipse installation does not contain a valid target platform.

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The easiest way to get an up-to-date version and configuration of your eclipse development environment, is to create a new installation using the Getting Eclipse guide. Simply commit and push your changes of your current working branch, set up a new installation following the current guide. Checkout your branch and adapt to the new target platform if necessary.

It is not recommend recommended to keep use on using an eclipse installations installation created with a downloaded setup file, because you are unable to receive updates of the target platform in the future.

Switching between Target Platforms

If you wand want to build your plug-ins against an older target platform definition, you open the Preferences window and navigate to Plug-in Development → Target Platform and select the one you wish to use.

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The automated update task is run by Oomph at every start of your eclipse. It will update you your eclipse and download new target platforms if necessary.

However, it will also activate the current target platform at each start, overriding your own selection. If you are annoyed by this behavior, you can switch off these automatic setups by selecting the corresponding property in Ooomph → Setup Tasks. Note that this will also disable automatic updates and you have to run Help → Perform Setup Tasks... manually, to receiver receive updates of the target platform and other definitions provided by the semantics Oomph setup.

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