Originally posted by: IrvL

I have an OPL project and exported an LP file, which was 21MB.  When I restarted CPLEX Optimization Studio 12.6.1 (the GUI editor), it was in the state "Refresh Workspaces" for a VERY long time.  I killed the process.  I deleted the .metadata in the workspace.  I rebooted my laptop.

When I deleted the LP file, everything worked fine.  It seems that if there is a large LP file in the workspace, and the "Refresh workspace" action occurs, you can't do ANYTHING in the editor.  You can't open an OPL file.  You are basically stuck.

So there is a bug here that ought to get fixed.

   -Irv

Originally posted by: IrvL

In addition, if you have a large LP file in your workspace, the CPLEX Studio User interface will just hang before you can even type anything.  Only solution seems to be to delete the LP file from the workspace (from the operating system).

    -Irv

Originally posted by: VincentBeraudier

This is a bug in OPL IDE 12.6.x. It will be corrected in a next release.

A Solution is to export the LP files outside of the projects.