request for guidance, how to use ardino uno

Hi i have recently purchased a

"UNO R3 ATmega328P Development Board With Boot Loader For Arduino UNO C^^"

i worte a simple program, and when i connected USB cable to computer and uploaded the program, i got this messege below, how do i fix it

"Invalid library found in C:\Users\vib_tripathi149\Documents\Arduino\libraries\sketch_aug27a: C:\Users\vib_tripathi149\Documents\Arduino\libraries\sketch_aug27a"

Regards,

Vib

C:\Users\vib_tripathi149\Documents\Arduino\libraries\sketch_aug27a is a sketch, not a library. You should never save sketches to the C:\Users\vib_tripathi149\Documents\Arduino\libraries folder. You can save sketches anywhere else you like, but not there. If you want to get rid of the warning then you need to either move the C:\Users\vib_tripathi149\Documents\Arduino\libraries\sketch_aug27a folder somewhere else or delete that folder.

I'm having the same issue. I'm using a Arduino Mega2560 and I get this message:

Invalid library found in C:\Users\Lenovo\Documents\Arduino\libraries\Knight_Rider_Test_1: C:\Users\Lenovo\Documents\Arduino\libraries\Knight_Rider_Test_1
Invalid library found in C:\Program Files (x86)\Arduino\libraries\KnightRider: C:\Program Files (x86)\Arduino\libraries\KnightRider
Invalid library found in C:\Users\Lenovo\Documents\Arduino\libraries\Knight_Rider_Test_1: C:\Users\Lenovo\Documents\Arduino\libraries\Knight_Rider_Test_1

It automatically saves under my documents but it's looking at another directory (see above). I tried moving it to the directory it wants but still doesn't work. Not sure what else to do. Please help.

afav8tor has created a dedicated thread for their problem:
http://forum.arduino.cc/index.php?topic=568874
We'll continue any discussion of their problem in that thread.