https://devzone.nordicsemi.com/f/nordic-q-a/35050/nrf-s1xx_iot-sdk-issuesHello all, We are using nRf52832 DK. We are trying to run TCP Client example from IOT.we have even burned the s1xx_iot soft device.We are getting the the error &quot;CMSIS:CORE:3.40.0 is missing&quot;. what are the reasons for this error and how can ween-USTelligent Community 13Mon, 04 Jun 2018 10:57:50 GMThttps://devzone.nordicsemi.com/thread/134518?ContentTypeID=1Mon, 04 Jun 2018 10:57:50 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9f449dca-e8ee-4d36-b2e0-66d4e52efc60H&#229;kon Alseth<p>Hi,</p> <p>&nbsp;</p> <p>The iot SDK was merged in with the nRF5 SDK with version v14.1 and newer. I recommend that you use the latest nRF5 SDK (v15.0 at this time) for iot development.</p> <p>If you are still lacking the CMSIS pack from these examples, you can download and install it from ARMs github account:&nbsp;<a href="https://github.com/ARM-software/CMSIS/releases">https://github.com/ARM-software/CMSIS/releases</a></p> <p>&nbsp;</p> <p>Best regards,</p> <p>Håkon</p><div style="clear:both;"></div>