I recently set up Mathematica 9.0.1 on a new computer, along with x64 Eclipse Indigo with JRE 1.7, and the Wolfram Workbench 2 plug-in. Something is amiss, because when I try to do any sort of task involving Mathematica from inside Workbench, I get the same error message:

An internal error occurred during: "FrontEnd Job::Open Notebook".

Otherwise, Mathematica works fine, as does the Eclipse install when used for other purposes (Java and Scala development).

This is a 64 bit Windows 7 machine.

  • $\begingroup$ have you tried installing Wokrbench as a standalone application? $\endgroup$
    – Misery
    Apr 26, 2013 at 16:02
  • $\begingroup$ Isn't it connected with 64 bit and java? (I know similar issue from Linux system) $\endgroup$
    – mmal
    Apr 26, 2013 at 16:07
  • $\begingroup$ at the moment, i'd really prefer to keep using Indigo if at all possible. $\endgroup$
    – Pillsy
    Apr 26, 2013 at 16:11
  • $\begingroup$ For me, Eclipse 3.7.2 is the latest version supporting the workbench plugin. $\endgroup$ Apr 26, 2013 at 16:22
  • $\begingroup$ @b.gatessucks I'm currently using Eclipse 3.7.2. $\endgroup$
    – Pillsy
    Apr 26, 2013 at 16:48

1 Answer 1


In the comments to this answer Rolf Mertig mentions that you have to use the 32 bit version of Eclipse.

(So I guess we can close this as a duplicate?)

I just installed WB into 32bit eclipse 3.7.2 on Win7 64bit and everything works great!

Screen shot

  • $\begingroup$ I have found a way to avoid a 32-bit re-installation of Eclipse, based on help from Wolfram support. Would it be inappropriate to add it either here, or to the other question? $\endgroup$
    – Pillsy
    Apr 30, 2013 at 18:51
  • $\begingroup$ @Pillsy Hmm good question. I would definitely add this somewhere! You can't add it here (right now) as we would first have to reopen the question. I guess you can add it as an answer to the other question. Then it can be moved by the admins if necessary. $\endgroup$
    – Ajasja
    Apr 30, 2013 at 19:18
  • $\begingroup$ related software.additive-net.de/en/support/wolfram-support/… (you'll need to translate from german) $\endgroup$
    – faysou
    Dec 20, 2014 at 22:12

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