examples myboardNRF5 build fail

[turingking]

Arduino:1.8.13 (Windows 10), 开发板："MyBoardNRF5 nRF52832, S132 (SoftDevice), Crystal Oscillator, Don't enable"

In file included from C:\Users\77183\AppData\Local\Arduino15\packages\sandeepmistry\hardware\nRF5\0.6.0\cores\nRF5/delay.h:30:0,

                 from C:\Users\77183\AppData\Local\Arduino15\packages\sandeepmistry\hardware\nRF5\0.6.0\cores\nRF5/Arduino.h:53,

                 from sketch\MyBoardNRF5.ino.cpp:1:

C:\Users\77183\AppData\Local\Arduino15\packages\MySensors\hardware\nRF5\0.3.0\variants\MyBoardNRF5/variant.h:119:32: fatal error: sketch/MyBoardNRF5.h: No such file or directory

compilation terminated.

exit status 1