https://devzone.nordicsemi.com/f/nordic-q-a/89740/zephyr_pre0-elf-and-zephyr_pre0-map-link-failsTrying to add a board config to a hello world example; wondering why zephyr_pre0.elf and zephyr_pre0.map link fails and any possible solutions to the problem. HREAD_INFO:STRING=&quot;y&quot; -- west build: generating a build system Loading Zephyr default modulesen-USTelligent Community 13Wed, 10 Apr 2024 04:51:10 GMThttps://devzone.nordicsemi.com/thread/477924?ContentTypeID=1Wed, 10 Apr 2024 04:51:10 GMT137ad170-7792-4731-bb38-c0d22fbe4515:60e6978b-a1b0-49a0-abb0-609da92f34a2Utkarsh<p>Can you please tell me all the config setting required for BLE Mesh Application?<br />I am getting this same error and I don&#39;t know what I am missing?<pre class="ui-code" data-mode="text">#CONFIG_INIT_STACKS=y CONFIG_MAIN_STACK_SIZE=2048 CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=2048 # The Bluetooth API should not be used from a preemptive thread: CONFIG_MAIN_THREAD_PRIORITY=-2 CONFIG_BT=y #CONFIG_BT_DEBUG_LOG=y CONFIG_BT_OBSERVER=y CONFIG_BT_BROADCASTER=y CONFIG_BT_CTLR_DUP_FILTER_LEN=0 CONFIG_BT_CTLR_LE_ENC=n CONFIG_BT_CTLR_LE_PING=n CONFIG_BT_DATA_LEN_UPDATE=n CONFIG_BT_PHY_UPDATE=n CONFIG_BT_CTLR_MIN_USED_CHAN=n CONFIG_BT_CTLR_PRIVACY=n CONFIG_BT_CTLR_CHAN_SEL_2=n CONFIG_BT_MESH=y CONFIG_BT_MESH_SUBNET_COUNT=1 CONFIG_BT_MESH_APP_KEY_COUNT=1 CONFIG_BT_MESH_ADV_BUF_COUNT=10 CONFIG_BT_MESH_TX_SEG_MSG_COUNT=3 CONFIG_BT_MESH_RX_SEG_MAX=32 CONFIG_BT_MESH_MODEL_GROUP_COUNT=2 CONFIG_BT_MESH_LABEL_COUNT=0 CONFIG_BT_MESH_CFG_CLI=y CONFIG_BT_MESH_HEALTH_CLI=y CONFIG_BT_MESH_BEACON_ENABLED=n CONFIG_BT_MESH_RELAY=y CONFIG_BT_MESH_RELAY_RETRANSMIT_COUNT=3 CONFIG_BT_MESH_PROVISIONER=y CONFIG_BT_MESH_PROVISIONEE=n CONFIG_BT_MESH_CDB=y CONFIG_BT_MESH_CDB_NODE_COUNT=16 CONFIG_BT_MESH_CDB_SUBNET_COUNT=3 CONFIG_BT_MESH_CDB_APP_KEY_COUNT=3 CONFIG_BT_SETTINGS=y CONFIG_FLASH=y CONFIG_FLASH_PAGE_LAYOUT=y CONFIG_FLASH_MAP=y CONFIG_NVS=y CONFIG_SETTINGS=y CONFIG_BT_MESH_RPL_STORE_TIMEOUT=600 CONFIG_BT_MESH_RPR_CLI=y CONFIG_BT_EXT_ADV=y CONFIG_BT_MESH_DK_PROV=y #CONFIG_BT_EXT_ADV_MAX_ADV_SET=5 </pre></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/411340?ContentTypeID=1Wed, 22 Feb 2023 11:49:54 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a4efa583-cd79-4087-b50b-3bd7e19a3f7apajd0x<p>Thanks, your answer helped me.</p> <p>I encountered a similar error during building a BLE Mesh application (calling bt_mesh_cdb_create()). Thought I would mention it for other people: if you have got&nbsp;linker&nbsp;issues when calling zephyr sdk functions, check the if the required CONFIG_X values are set in the prj.conf configuration.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/376070?ContentTypeID=1Thu, 07 Jul 2022 16:51:08 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1711aa68-60fb-41d3-be2d-9710b43f1b9eYin Hinton<p>turns out CONFIG_GPIO=y needed to be added to the prj.conf file or the board_defconfig file.</p><div style="clear:both;"></div>