downloaded Keil 4.x cannot compile for NRF51822 missing some plugin

[Gilson]

I'm a noob in this alley! it is my first time working with Nordic products. In the past I used Energy Micro and ST Micro.

I downloaded Keil 4.x from ARM website. Then I opened the project file I found under the project tree and tried to compile but I get the following error message:

Build target 'nrf51822_xxaa_s110 (256K)' *** Error: Referred Memory Range 'IROM1' is undefined. assembling arm_startup_nrf51.s... arm_startup_nrf51.s: error: A3903U: Argument '--pd' not permitted for option 'device'. "._build\glock_g22.axf" - 1 Error(s), 0 Warning(s). Target not created

How can I add Nordic devices to Keil?

Thanks, Gil

[Ole Morten]

You should always make sure to install the SDK after having installed Keil, but I suspect that the particular error you're seeing here doesn't have anything to do with that.

Are you certain that you downloaded the correct Keil version, i.e. Keil's MDK-ARM and not C51? If this is not the problem, can you please upload a screenshot of your Help -> About µVision dialog?