Nios II flash programmer problem

[Altera_Forum]

Hello, 

I have a problem with the Nios II flash programmer.  I created a project with the Quartus 10 SOPC builder starting from the reference design, triple-speed Ethernet. With Quartus 10 could program the nios. Moving to version 11 I have the following problem with the NIOS II flash programmer   Erase failed at offset 800000  Leaving target processor paused  Error code: 1 for command ...  I'm using the STRATIX IV - EP4SGX230KF40C2  Thanks

[Altera_Forum]

11.0的USB-Blaster驱动有问题，换以前的版本即可。 

 The driver of usb-blaster v11.0 can not work normally, try an old version to fix the problem.