arduino1.69没有库怎么解决？

有大佬么，萌新求助

Arduino:1.6.9 (Windows 7), 开发板："Arduino Pro or Pro Mini, ATmega328 (3.3V, 8 MHz)"
Warning: Board arduino:avr:bt168pa doesn't define a 'build.board' preference. Auto-set to: AVR_BT168PA
Warning: Board arduino:avr:atmega168pext doesn't define a 'build.board' preference. Auto-set to: AVR_ATMEGA168PEXT
Warning: Board arduino:avr:atmega168bb doesn't define a 'build.board' preference. Auto-set to: AVR_ATMEGA168BB
Warning: Board arduino:avr:atmega168p doesn't define a 'build.board' preference. Auto-set to: AVR_ATMEGA168P
C:\Users\Administrator\Desktop\XYZN_NFC_BUCKET_V1.0.17052709\XYZN_NFC_BUCKET_V1.0.17052709.ino:38:40: fatal error: MsTimer2.h: No such file or directory
#include <MsTimer2.h>//瀹氭椂鍣?2涓柇
^
compilation terminated.
exit status 1
为开发板 Arduino Pro or Pro Mini 编译时出错。
在文件 -> 首选项开启
“编译过程中显示详细输出”选项
这份报告会包含更多信息。