Why do I get the error “Unable to determine the execution environment” when running the “aocl version” command in the Intel SDK for OpenCL? - Why do I get the error “Unable to determine the execution environment” when running the “aocl version” command in the Intel SDK for OpenCL? Description Due to an issue in version 18.1.0 of the FPGA Runtime Environment for OpenCL™, the command “aocl version” will produce the following errors: aocl: Unable to determine the execution environment of the FPGA Runtime Environment for OpenCL(TM). aocl: Detailed error: Could not find SDK internal libraries directory /opt/intel/intelFPGA_pro/18.1/aclrte-linux64/linux64/lib aocl: Detailed error: Could not determine the path to SDK internal libraries Resolution The workaround is to run the following command to create the directory that the command is looking for. $ mkdir -p $INTELFPGAOCLSDKROOT/linux64/lib This problem is fixed beginning with the Quartus® Prime Software version18.1.1 Custom Fields values: ['novalue'] Troubleshooting FB: 609712, 1408301759; False ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Pro', 'FPGA Dev Tools Quartus® Prime Software Standard'] 18.1.1 18.1 ['Programmable Logic Devices'] ['HLD Tools OpenCL'] ['novalue'] ['novalue']