Error (209053): Unexpected error in JTAG server -- error code 89

hello,

i installed Quartus II v 13.0sp, for 64 bit ubuntu 15.04.

and when i tried to run the toturial on the video below i don't obtain the final hardaware implementation on my fpga.

[video=youtube;auQ7wpVH-0Q]https://www.youtube.com/watch?v=auQ7wpVH-0Q[/video]

i tried to run this toturial on my FPGA wich is STRATIX II EP2S60F672C3N and all the steps of the simulations are succeful but when I'm trying to download my hardware configuration in my board and when I run the programmer there's a message from Quartus that said :

Error (209053): Unexpected error in JTAG server -- error code 89

Error (209012): Operation failed

What is this ? anyone knows what's going on?

thank you an advance!!