Arduino DHT11: Adafruit_Sensor.h: No such file or directory

How to solve following error occurred while compiling DHT11 program In file included from C:\Users\yogita\Documents\Arduino\DHT_sensor\DHT_sensor.ino:1:0: C:\Users\yogita\Documents\Arduino\libraries\Adafruit_BMP085_Unified/Adafruit_BMP085_U.h:26:29: fatal error: Adafruit_Sensor.h: No such file or directory compilation terminated. exit status 1 Error compiling for board Arduino/Genuino Uno.