Eclipse IDE can't perform setup tasks

Dear Community,

I tried to follow this description:

Unfortunately it is not possible to perform the setup tasks. Here is my stacktrace:

Performing Preference /instance/org.eclipse.jdt.ui/formatter_profile = _ESH
Performing JRE for JavaSE-1.8 = C:\Program Files\Java\jre-9.0.4
Creating JRE for JavaSE-1.8 with location C:\Program Files\Java\jre-9.0.4
ERROR: org.eclipse.jdt.launching code=0 Target is not a JDK Root. Java executable was not found
at org.eclipse.oomph.setup.jdt.impl.JRETaskImpl$JREHelper.perform(
at org.eclipse.oomph.setup.jdt.impl.JRETaskImpl.perform(
at org.eclipse.oomph.setup.internal.core.SetupTaskPerformer.doPerformNeededSetupTasks(
at org.eclipse.oomph.setup.internal.core.SetupTaskPerformer.access$1(

I guess that it was working on my other environment with an older version of the Eclipse Installer. Summing up, how should I proceed now? Thanks in advance for sending me an old version of the Eclipse Installer or for giving me some hints how to solve this issue?

Best regards,