I'm trying to install neo4j plugins but the button is disabled. I managed to install it manually by copying the jars into the DB/plugins folder. However, I'd like to know what's the issue when doing it through the user interface:
you need to switch your Desktop into "online" mode. Click on the steering wheel on the left, there you'll find a Offline mode checkbox. Uncheck it.
Depending on your network env you might need to configure proxy settings.
I am still having this problem with desktop v1.2.5 (Windows) with Neo4j 4.0.2. I created a test graph to follow the course on graph algorithms but I cannot install the Graph Algorithms plugin as there is no install button for it. I have the offline radio button unchecked in settings. Not sure how to proceed.
Ok so if anyone else is trying to do this, through trial and error of creating a few versions it seems like 3.5.13 lets you install the same thing in the tutorial called "Graph Algorithms". I'm not sure if there is another page somewhere or a label or something where you can tell what versions of the tool the plugins support but that would be a nice feature.