Hello I am having two issue: 1. NRF 51822 is not supported by tool chain 2. I am opening a document sent by a colleague, it shows c/user/.../file was not found. Let me know how can I solve this problem
Keil simply reports the file is not on your system, is it incorrect?
If a file is unique to your colleague's system perhaps you can work with him/her to resolve your issues.
So which toolchain, exactly, did you install?