# Error trying to open a notebook in Wolfram Workbench [duplicate]

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.

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## marked as duplicate by Ajasja, Artes, Jens, m_goldberg, SilviaApr 27 '13 at 5:59

have you tried installing Wokrbench as a standalone application? – Misery Apr 26 '13 at 16:02
Isn't it connected with 64 bit and java? (I know similar issue from Linux system) – mmal Apr 26 '13 at 16:07
at the moment, i'd really prefer to keep using Indigo if at all possible. – Pillsy Apr 26 '13 at 16:11
For me, Eclipse 3.7.2 is the latest version supporting the workbench plugin. – b.gatessucks Apr 26 '13 at 16:22
@b.gatessucks I'm currently using Eclipse 3.7.2. – Pillsy Apr 26 '13 at 16:48