How do I set up the environment variables so I can launch the Altera device development kit GUI? - How do I set up the environment variables so I can launch the Altera device development kit GUI? Description The Altera® device development kit (Board Test System (BTS), CLK, and Power) GUIs heavily rely on the Quartus® II software version due to specific library requirements. Unlike other Altera development tools, the GUI for the development kits does not have a relative path relationship to the Quartus II software, in some cases, you will need to set the path manually. Resolution You can download this How-To: Setting up the environment variable for the development kit GUIs document that will help guide you in checking for the path settings and if required it will also show you how to set the paths. Related Articles Why is the ClockControl application unable to locate the USB-Blaster download cable when launched? Why is the Board Test System (BTS) GUI unable to locate the USB-Blaster? Custom Fields values: ['novalue'] Troubleshooting NA False ['novalue'] ['novalue'] novalue novalue ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']