I am getting a build workspace error when i try to checkout hw3 from repository....

Can anybody help...the error is as follows....

Errors during build.
  Errors running builder 'Integrated External Tool Builder' on project 'csns'.
  The builder launch configuration could not be found.

cysun wrote:

It seems like you committed .project into the repository but not .externalTooBuilders. Delete .project from your repository and check out the project again.

thank you, it works.