I have been trying to install various different extensions from Eclipse Marketplace, but they all fail

It looks like you are trying to install a plugin that is too old for the version of Eclipse you are using.

The missing dependency is for org.eclipse.core.runtime in the range 3.7.0 to 3.12.0. That looks to be from about March 2017.

And according to the plugin's page in Marketplace, it only supports up to the Eclipse Mars (4.5) release. You are using the Eclipse 2022-09 (4.25) release.

Solution: There isn't a good one. Your options are:

• Downgrade to Eclipse Mars which requires Java 7 to run (ouch!!) and doesn't support Java 9+ code.
• Look for another way of visualizing bytecodes.
• Offer someone¹ lots of money to:
  • track down the latest source code for the plugin,
  • produce releases that are compatible with recent versions of Eclipse, and
  • make them available via the Marketplace.

^{1 - ... either the author, or someone else. Hint: doubt that "Dr Garbage" is interested since he has allowed his domain name registration to expire.}