Trying to build researchr from Eclipse gives:

Problems occurred building the selected resources.
Errors running builder ‘Integrated External Tool Builder’ on project ‘researchr’.
The builder launch configuration could not be found.
The builder launch configuration could not be found.
Errors running builder ‘Integrated External Tool Builder’ on project ‘researchr’.
The builder launch configuration could not be found.
The builder launch configuration could not be found.
Errors running builder ‘Integrated External Tool Builder’ on project ‘researchr’.
The builder launch configuration could not be found.
The builder launch configuration could not be found.

Submitted by Eelco Visser on 24 December 2010 at 14:09

The project settings may be old, try running the ‘Convert to a WebDSL project’ wizard (overwrites application.ini, but this can be changed back after initial build).