NIOSII error: 'Error starting gdbserver' and 'wsl' is not recognized - NIOSII error: 'Error starting gdbserver' and 'wsl' is not recognized I encounter an error in NIOS II when download elf to FPGA, My Quartus are installed under Windows, without Ubuntu. Do you have this error, ‘ error starting gdbserver ’ and ‘ wsl is not recognized ’ as attached figures? Replies: Re: NIOSII error: 'Error starting gdbserver' and 'wsl' is not recognized Hi @rMa1 , Good to know that it is working now, this thread will be transitioned to community support. If you have new queries, please feel free to open a new thread to get support from Intel experts, and we would be right with you. Otherwise, the community users will further help you with doubts in this thread. Best Wishes BB Replies: Re: NIOSII error: 'Error starting gdbserver' and 'wsl' is not recognized Hi @rMa1 , Thank you for posting in Intel community forum and hope this message find you well. Starting from version 19.1, Nios SBT would required WSL to work, and it seems that you might have missed the installation of WSL. Please do refer to the link here to do so, and let us know if that helps. Best Wishes BB