Error : nios2-newlib-gen: Unable to Configure smallc newlib. See log file build-newlib. for more details. - Error : nios2-newlib-gen: Unable to Configure smallc newlib. See log file build-newlib. for more details. Description You may see this error while while generating a Makefile for a NIOS II BSP project with Intel® Quartus® standard edition 19.1 and Intel® Quartus® pro edition 19.2 onwards. The complete error message that may come up is shown below. nios2-newlib-gen: Unable to Configure smallc newlib See log file <path to the design> build-newlib. <time stamp> for more details. build-newlib <time stamp> file content : configure:4402: error: in `/mnt/c/Test/final/newlib-build-tmp/smallc': configure:4405: error: no acceptable C compiler found in $PATH Resolution To work around this error, please make sure that the build-essential package is installed withinthe Ubuntu* WSL distribution with the help of the following command : sudo apt install build-essential This problem is fixed starting with the Intel® Quartus® Prime Software version 21.1. Custom Fields values: ['novalue'] Troubleshooting 14013621238 False ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Pro'] 21.1 19.1 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']