# Introduction

Use this troubleshooting guide to find solutions to your Direct CAD Interface problems.

Currently, this troubleshooting guide contains these topics:

- Troubleshooting Unigraphics DCI Errors

- Troubleshooting CATIA DCI Errors

- Troubleshooting Pro/ENGINEER DCI Errors

- Troubleshooting I-DEAS DCI Errors

- Troubleshooting SolidWorks DCI Errors

- Troubleshooting CATIA 5 DCI Errors