SOPC Builder error:PTF failed!

what do you mean with "file permission problem" ?Is there a way to set this permission?

Can you help me workaround it?

sorry i have forgotten a relevant part of this error.The whole error is:

Error: Failed to refresh PTF file U:/MY_PROJECT/test/CPU.ptf (-1)

Executing: I:/programme/altera/10.1/quartus//sopc_builder/bin/sopc_builder --classic

Error: Couldn't run process I:/programme/altera/10.1/quartus//sopc_builder/bin/sopc_builder --classic --generate U:/MY_PROJECT/test/CPU.ptf successfully

I have tried with an altera design example , but it is the same error :

Error: Failed to refresh PTF file U:/CYC3/niosii_ethernet_standard_3c25/sopc_system.ptf (-1)

Info: Finished elaborating PTF file.

Executing: I:/programme/altera/10.1/quartus//sopc_builder/bin/sopc_builder --classic --generate U:/CYC3/niosii_ethernet_standard_3c25/sopc_system.ptf

Error: Couldn't run process I:/programme/altera/10.1/quartus//sopc_builder/bin/sopc_builder --classic --generate U:/CYC3/niosii_ethernet_standard_3c25/sopc_system.ptf successfully

Thank you for answering me!