i got an error "Stray error"

When I interfaced my Arduino UNO with DHT11 sensor I got an error as "stray error"

is that because of the device or programming fault.
http://uitechies.co.in/BBBcircuits/product.php?product=dht11-digital-temperature-humidity-sensor-module-compatible-dht11-arduino

Please post you full program and the full error message