Error L257

[Nitesh Dubey]

Dear Team,

Greetings!!!

I want to run the gazell_examples files from of nrf sdk but I am seeing this error : *** ERROR L257: UNKNOWN. All the keil files in gazell_example folder not working properly.

Screenshot is attached below.

click here to view error message

[run_ar]

Hi,

Are you using a Licensed version of Keil? If so the error message indicates that you need to clean you solution/project and rebuild it completely.

Please note that the nRF24 is a legacy product and not recommended for new designs. I would recommend that you look at the nRF52 series instead.

[Nitesh Dubey]

Rebuid the project many times but the problem remains the same.

[run_ar]

I think you missed my point on needing a license. I.e. the error L257 means

You have no valid license to run the LX51 Linker/Locator. Contact Keil or your Keil distributor to get an upgrade to the PK51 Professional Developers Kit.