SDK v6.0.0 problem with Keil v5 project fileshttps://devzone.nordicsemi.com/f/nordic-q-a/3229/sdk-v6-0-0-problem-with-keil-v5-project-filesHi, I&#39;m trying to build the ble_app_beacon project for the nRF51822 (pca10001 board). Using default installation folders, latest SDK (v6.0.0) and Keil V5.1.0.0. I used ble_app_beacon.uvprojx error message: arm_startup_nrf51.s: error: A1023E: Fileen-USTelligent Community 13Wed, 23 Jul 2014 11:06:08 GMTRE: SDK v6.0.0 problem with Keil v5 project fileshttps://devzone.nordicsemi.com/thread/11841?ContentTypeID=1Wed, 23 Jul 2014 11:06:08 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d867bdf4-58a2-493c-9c3f-9701deba066fwlgrd<p>I don&#39;t know what your problem might be, but using Keil 5.10.0.0 I have no problem starting the uvprojx. Are you sure you have installed the nordic package from the Pack Installer? Also, looking at &quot;Manage Run-Time Environment&quot;-&gt;Device-&gt;Startup, do you see the checkmark for &quot;System Startup and header files for nRF51 Series?</p><div style="clear:both;"></div>