compile and run issues of Hello world

Hi Hongbo,

Check out the Getting Started Guide for instructions on how to get up and running with the emulator flow. Have you set the CL_CONTEXT_EMULATOR_DEVICE_ALTERA environment variable? I believe you will need that in order to emulate an OpenCL FPGA device. I suspect that's where your error is coming from.

https://www.altera.com/content/dam/altera-www/global/en_us/pdfs/literature/hb/opencl-sdk/aocl_getting_started.pdf

Thanks for reporting the Makefile issue (hello_world vs. hello). I'll file a bug report to have someone look into it.