C:\Arduino_Projects\libraries\Gimbal\Gimbal.cpp:3:2: error: invalid preprocessing directive #declare

 #declare tsl

  ^

C:\Arduino_Projects\libraries\Gimbal\Gimbal.cpp: In member function 'void Gimbal::scan()':

C:\Arduino_Projects\libraries\Gimbal\Gimbal.cpp:48:3: error: 'sensors_event_t' was not declared in this scope

   sensors_event_t event;

   ^

C:\Arduino_Projects\libraries\Gimbal\Gimbal.cpp:49:3: error: 'tsl' was not declared in this scope

   tsl.getEvent(&event);

   ^

C:\Arduino_Projects\libraries\Gimbal\Gimbal.cpp:49:17: error: 'event' was not declared in this scope

   tsl.getEvent(&event);

                 ^

Multiple libraries were found for "Wire.h"
 Used: C:\Users\HP\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.6.20\libraries\Wire
 Not used: C:\Arduino_Projects\libraries\Wire
exit status 1
Error compiling for board Arduino/Genuino Uno.