If you are installing from a downloaded file, the archive might be corrupted.
If the activator fails to start the service, Error 6 will occur during the installation of the "SolidWorks Essentials" component. 4. Fix the "SolidNetWork License Manager" Service If the installer hangs at Error 6: Open (search in the Start menu). Look for SolidNetWork License Manager . If it is "Stopped," right-click and select Start . solidworks 2018 crack installation error 6