Why can't I add custom UUID?

[jj8431]

Hi,

I'm trying to test adding my own custom service, but have errors when I tried to add a 128bit UUID, the test code is simple, in the service_init() function, I just added the following codes:

ble_uuid128_t service_uuid = {{0x68, 0x26, 0xed, 0x42, 0x01, 0x68, 0xbe, 0xa1, 0x5e, 0x48, 0x7c, 0x8c, 0x36, 0xd5, 0x6d, 0x23}};
ble_uuid_t short_uuid = {0x0001, BLE_UUID_TYPE_VENDOR_BEGIN};

err_code = sd_ble_uuid_vs_add(&service_uuid, &short_uuid.type);
APP_ERROR_CHECK(err_code);

the sd_ble_uuid_vs_add() call is put after the call of the nrf_ble_qwr_init();

the error code is 4, which is NRF_ERROR_NO_MEM, in the API reference it says that means " there are no more free slots for VS UUIDs", how can I add more slots?

The code was based on the ble_app_template, it compiles with no error.

Thanks for help.

[jj8431]

I found if I use the ble_app_uart example as the base and replace the adding custome UUID part with my above code, then no error is returned, so what is the difference? 

Is there something missed in the ble_app_template ?