• On Windows, download the latest Java version (14.1) from Oracle. On Ubuntu Linux, you can install sudo apt install openjdk-14-jdk (only on 19.10) or sudo apt install openjdk-11-jdk. At least Java 11 is required.

• Install Eclipse from https://www.eclipse.org/downloads/

• Open Eclipse

  

• Import...

  

• Existing Gradle Project...

  

• Chose path of the downloaded project and click Next

  

• Grab a coffee while it's downloading ImageJ

  

• Try to run Exercise01

  

• You are seeing red squiggles, you found a bug in a Eclipse plugin. Upgrade it in the Eclipse Marketplace!

  

• Search for gradle build! Then, click on the Installed button of "Buildship Gradle Integration.

  

• ... and click on Update! This should solve the bug after a restart.

  

• You should now see ImageJ when you start Exercise01.

  

• If you're still facing problems: please also check whether a valid Java Runtime Enviroment was found by right-clicking on the project folder (if it still has red crosses). Select Properties -> Java Build Path. Sometimes Eclipse does not find your Java installation. You can select it there.

  

Back to exercise 01