Arduino UNO R3, Warning messages

Development Tools IDE 1.x
1

Hi,

I bought arduino uno R3, i gotta the following warning messages when i upload the basic blink sketch.

Warning: Category 'USB' in library keyboard is not valid. Setting to 'uncaregorized'
Warning: Category 'USB' in library Mouse is not valid. Setting to 'uncaregorized'
Warning: Category 'USB' in library keyboard is not valid. Setting to 'uncaregorized'
Warning: Category 'USB' in library Mouse is not valid. Setting to 'uncaregorized'

But my sketch is working. i dont know why i am getting these kind of warning messages.

Kindly please tell me the solution.

Regards,
Lokesh S

2

Same here on arduino mega 2560 rev 3

3

Sounds like an installation problem. A bunch of people have had IDE 1.6.x problems, including IDE crashes and bizarre compile errors, mostly when they install over an old 1.5.x installation. Those problems seem to be caused by out-of-date executables that the new IDE saves outside the IDE installation directory. In such cases it appears that the fix is to delete or rename the old "Arduino15" directory and re-install 1.6.x.

On Mac OS X:
/Users/username/Library/Arduino15

On Windows:
C:\Users\username\AppData\Roaming\Arduino15