,maybe this one works?

Dependencies:   BLE_API mbed nRF51822

Revision:
0:7a9eb6b6ae60
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Sun Oct 28 12:15:46 2018 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/mbed_official/code/mbed/builds/e95d10626187
\ No newline at end of file