OK, the problem I was having with installing the plugin was due to my having an old version of the JDK (8_075) installed (I forgot that Eclipse uses the JDK, not the JRE which was up-to-date). The certificates for Let's Encrypt were not included until 8_101 or thereabouts. I updated my JDK and the i...

When I try to add the update site in the Eclipse Add Software dialog I get the error: Unable to read repository at https://dl.espressif.com/dl/idf-eclipse-plugin/updates/latest/content.xml. Unable to read repository at https://dl.espressif.com/dl/idf-eclipse-plugin/updates/latest/content.xml. sun.se...

I have been unable to install the Eclipse plugin at all. The update URL listed in README.md yields a 403 error and the link to the Releases directory shows no releases available for download. The first time I tried was 3-October I think. Am I missing something?