OpenOCD: Error: error waiting for target flash write algorit

Open On-Chip Debugger 0.10.0+dev-00292-gf2b228f5 (2018-02-04-16:22)
Licensed under GNU GPL v2
For bug reports, read
 http://openocd.org/doc/doxygen/bugs.html
Info : FTDI SWD mode enabled
cortex_m reset_config sysresetreq
adapter speed: 1000 kHz
Info : clock speed 1000 kHz
Info : SWD DPIDR 0x0bb11477
Info : nrf51.cpu: hardware has 4 breakpoints, 2 watchpoints
Info : Listening on port 3333 for gdb connections
target halted due to debug-request, current mode: Thread
xPSR: 0xc1000000 pc: 0x000000c0 msp: 0x20004000
auto erase enabled
Info : nRF51822-QFAA(build code: H0) 256kB Flash
Warn : using fast async flash loader. This is currently supported
Warn : only with ST-Link and CMSIS-DAP. If you have issues, add
Warn : "set WORKAREASIZE 0" before sourcing nrf51.cfg/nrf52.cfg to disable it
Warn : target was in unknown state when halt was requested
Info : SWD DPIDR 0x0bb11477
Error: error waiting for target flash write algorithm
Error: Failed to write to nrf5 flash
Error: error writing to flash at address 0x00000000 at offset 0x00023800