help:bsp generate error when copy from one another pc

Dear,

I copied a bsp and application project from one another pc, and successfuly "import an existing project" to the Eclipse workspace. When I build the bsp project, Eclipse poped an error message:

"

Makefile not up to date.

../../nios_28h_spi.sopcinfo has been modified since the BSP was generated.

Generate the BSP to update the Makefile,and then build again.

To generate from Eclipse:

1. Right-click the BSP project.

2. In the Nios II Menu, click Generate BSP.

"

After I right-click the BSP project and in the Nios II menu,click Generate BSP, and Error message poped:

"

SEVERE:file not found:..\..\nios_28h_spi.sopcinfo

SEVERE:file not found:..\..\nios_28h_spi.sopcinfo

SEVERE:nios2-bsp-generate-files failed

"

But really the .sopcinfo file exist in the right folder. The bsp and application project had been successfully build in the PC which I want to copy from.

What happened? And how to resolve this problem? How to copy an existing bsp project from a different PC?

Thank you for the help.