https://devzone.nordicsemi.com/f/nordic-q-a/25201/updated-packs-in-keil-now-spi_master-goneHi, I updated all my Packs in Keil for an old project, but now there are a bunch of missing files. In my build window it says things like: Error #540: &#39;NordicSemiconductor::nRF_Drivers:spi_master:2.0.0&#39; component is not available for target &#39;nrf51822_xxaa_s120en-USTelligent Community 13Fri, 15 Sep 2017 10:49:37 GMThttps://devzone.nordicsemi.com/thread/99329?ContentTypeID=1Fri, 15 Sep 2017 10:49:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d2c119e9-b9d8-4daa-960e-564f1a4117d6J&#248;rgen Holmefjord<p>Which SDK version are you using? <a href="https://devzone.nordicsemi.com/blogs/880/deprecating-support-for-cmsis-pack-in-nrf5-sdk/">Support for CMSIS packs have been deprecated</a>, but it should still be available for older versions. Have you tried installing other versions of the nRF_Drivers pack?</p><div style="clear:both;"></div>