I am attempting to create and launch Node projects through Eclipse but, until now, I have not succeded in doing it.
More precisely, when I try to install the Enide plugin through the Eclipse-MarketPlace I get the error:
The following solutions are not available: Enide (Studio) 2015 - Node.js, JavaScript, Java and Web Tools 1.0.2 (id=org.sweetlemonade.eclipse.json.feature.feature.group, org.nodeclipse.pluginslist.feature.feature.group, de.bastiankrol.startexplorer.feature.feature.group, zipeditor.feature.group, code.satyagraha.gfm.viewer.feature.feature.group, org.nodeclipse.phantomjs.feature.feature.group, com.github.eclipsecolortheme.feature.feature.group, org.nodeclipse.enide.gradle.feature.feature.group, markdown.editor.feature.feature.group, org.nodeclipse.enide.nodejs.feature.feature.group, code.google.restclient.tool.feature.feature.group, gitaddon.feature.feature.group, jdt.spelling.feature.feature.group, org.dadacoalition.yedit.feature.group, org.nodeclipse.enide.editors.gradle.feature.feature.group, net.mihai-nita.ansicon.feature.group, pm.eclipse.editbox.feature.feature.group, site=https://nodeclipse.github.io/updates/)
What's wrong? What should I do?
My Eclipse version is the latest one:
Eclipse IDE for Enterprise Java and Web Developers (includes Incubating components)
Version: 2023-03 (4.27.0)
Build id: 20230309-1520
just downloaded and installed.
However, when I open the marketplace dialog I see some strange 'Unnamed solution':
Moreover, I cannot drag-and-drop the Enide plugin through the web-page: enide-web-page
rendered by
FireFox 111.0.1 (64-bit)
Thus, I haven't been able, until now, to install the plugin. Could you, please, suggest me any further options?

For anyone encountering the same problem.
Finally, I've succeded in installing the Enide 2015 plugin by downloading the plugin as an archive file: Eclipse allows to install plugins also as local archives.
The procedure is described in the option c) of the nodeclipse installation instructions. The previous option b) suggests the features to select for installation from the whole archive.
P.S. Let me update my answer by specifying that I have finally leaved
Eclipsein favour of another IDE better supportingjavascript.