Hi，
I ran into this error:
00> <error> nrf_ble_gq: SD GATT procedure (1) failed on connection handle 0 with error: 0x00000008.
00>
00> <error> app: ERROR 8 [NRF_ERROR_INVALID_STATE] at ..\..\..\main.c:244
00>
00> PC at: 0x000261B5
00>
00> <error> app: End of error report
Line 244 is the following code：
