Failed to launch MegaWizard™ Plug-In Manager. Custom PHY Intel® FPGA IP V18.1 could not be found in the specified library paths - Failed to launch MegaWizard™ Plug-In Manager. Custom PHY Intel® FPGA IP V18.1 could not be found in the specified library paths Description In the Intel® Quartus® Prime Standard Edition software version 18.1, when you open the MegaWizard™ for editing, you may see error message “Failed to launch MegaWizard™ Plug-In Manager. Custom PHY Intel® FPGA IP V18.1 could not be found in the specified library paths”. Resolution To work around this problem in the Intel® Quartus® Prime Standard Edition software version 18.1, follow the steps below. 1. Locate altera_xcvr_8g_custom_wizard.lst in your Intel® FPGA install directory. For Linux System: /linux64/ip/altera/altera_xcvr_8g_custom/xcvr_generic For Windows System: /ip/altera/altera_xcvr_8g_custom/xcvr_generic 2. Open altera_xcvr_8g_custom_wizard.lst, add following sentence in a new line after <ALIAS>Custom PHY v18.0</ALIAS> and save. <ALIAS>Custom PHY Intel FPGA IP v18.1</ALIAS> This problem is fixed beginning with the Intel® Quartus® Prime Standard Edition software version 19.1. Custom Fields values: ['novalue'] Troubleshooting 1507051088 False ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Standard'] 19.1 18.1 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']