SDI Audio MegaCore Function Designs with SOPC Builder Fail to Generate - SDI Audio MegaCore Function Designs with SOPC Builder Fail to Generate Description If you create an SOPC Builder design using any of the SDI Audio MegaCore functions, your design fails to generate and shows the following error: Node instance "<sdi_audio_core_name>_0" instantiates undefined entity "<sdi_audio_core_name>" Resolution To generate SDI Audio MegaCore functions in SOPC Builder, follow these steps: Open a text editor and type the following commands: <QUARTUS_ROOTDIR>\ip\altera\<sdi_audio_core_name>\src\<sdi_audio_core_name>_hw.tcl Remove the following line: package require -exact sopc 10.0 Replace < sdi_audio_core_name > with audio_embed, audio_extract, clocked_audio_input or clocked_audio_output . Custom Fields values: ['novalue'] Troubleshooting novalue True ['novalue'] ['FPGA Dev Tools Quartus II Software'] 11.0 10.1.1 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']