&quot;concatenation with &quot;&quot;fs_data&quot;&quot; in macro &quot;NRF_SECTION_VARS_REGISTER_SECTION&quot; does not create a valid token&quot; error when try to compile fstorage.c with IAR.https://devzone.nordicsemi.com/f/nordic-q-a/10984/concatenation-with-fs_data-in-macro-nrf_section_vars_register_section-does-not-create-a-valid-token-error-when-try-to-compile-fstorage-c-with-iarI try to make a build of the example ble_app_hrs_rscs_replay_pca10028 (central and peripheral experimental) in SDK 10. My MCU is nRF51822-CFAC, and I&#39;m using IAR compiler. When I try to compile fsstorage.c, I got the error Error[Pe1665]: concatenationen-USTelligent Community 13Tue, 19 Jan 2016 20:00:48 GMTRE: "concatenation with ""fs_data"" in macro "NRF_SECTION_VARS_REGISTER_SECTION" does not create a valid token" error when try to compile fstorage.c with IAR.https://devzone.nordicsemi.com/thread/41075?ContentTypeID=1Tue, 19 Jan 2016 20:00:48 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9faf355e-26b5-49dc-9e0b-8e3580406a4autrank00<p>Thanks, It worked.</p><div style="clear:both;"></div>RE: "concatenation with ""fs_data"" in macro "NRF_SECTION_VARS_REGISTER_SECTION" does not create a valid token" error when try to compile fstorage.c with IAR.https://devzone.nordicsemi.com/thread/41074?ContentTypeID=1Tue, 22 Dec 2015 10:26:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ff852adc-ae84-4c7b-a812-0a70b87ef63bH&#229;kon Alseth<p>Hi,</p> <p>I&#39;ve reported this issue internally to our SDK team. It is a problem with the macro defined in section_vars.h. If you change it to this:</p> <pre><code>#define NRF_SECTION_VARS_REGISTER_SECTION(section_name) NRF_PRAGMA(section = #section_name ) </code></pre> <p>Then it shall work properly.</p> <p>Cheers, Håkon</p><div style="clear:both;"></div>