Oomph installer error: The catalog could not be loaded

Question

I'm trying to install a newer version of Eclipse. The Oomph Eclipse installer keeps giving me the following error:

I'm definitely connected to the network - and I've done everything I can think of with Configure Network Proxy Settings. I still get the error every time.

Any suggestions? Thanks!

Answer 1

I experienced something similar today. For me, it related to my company's internet making use of a security tool called Netskope that intercepts https traffic (yep, companies are sniffing our private traffic too now ;)).

I've experienced similar network issues with other tools at work (like python pip installer), and our IT dept advised that we need to install a Netskope root certificate into any tool we use that doesn't make use of the operating system's security store (and they use their own).

So, to get a feel for how this issue impacted me in relation to this "eclipse-inst-jre-win64.exe" installer file, I learnt that I could run the installer with an extra argument, to specify my own jvm:

eclipse-inst-jre-win64.exe -vm "C:\Program Files\Java\jre1.8.0_251\"

This got me the following error:

...and that was the clue I needed to realise that this Eclipse installer .exe had JDK 11 built into it.

So, given that, I felt that I should try download my own JDK 11 and add this 'netskope.pem' root certificate into that, so I'll share my steps in doing so:

I grabbed jdk-11 from here:

• http://jdk.java.net/java-se-ri/11

I extracted the “openjdk-11+28_windows-x64_bin.zip” file onto my local drive

• E.g. to “C:\Users\GurceI\Downloads\jdk-11\”

Added ‘nscacert.pem’ to jdk-11’s keystore from the command-line, with:

cd c:\Users\GurceI\Downloads\jdk-11\

bin\keytool.exe -import -keystore lib\security\cacerts -file c:\ProgramData\netskope\stagent\download\nscacert.pem

(default keystore password = “changeit”)

I then ran the eclipse-installer with an extra argument to point it to my jdk-11 (rather than its internal one):

eclipse-inst-jre-win64.exe -vm "C:\Users\GurceI\Downloads\jdk-11\"

...and then, finally, the installer worked, no more network issues :)

Answer 2

I got the same error with "The catalog could not be loaded. Please ensure that you have network access... on my Windows 10 laptop.

I know the installer works since I was able to install Eclipse on another system. I went to eclipse.org, then to More, Eclipse IDE Download, then choose "Get Eclipse", then click on Download Packages. Choose your OS. In my case, I chose Eclipse IDE for Java Developers, Windows x86_64. This will start downloading the eclipse install .zip file.

Once unzipped, I was able to install by launching the .exe.

Hope this helps.