Platform Designer Error, please help - Platform Designer Error, please help Dear Support/Expert, My Quartus 21.3 have been working for a long time. I used it went through AN351, and some design. I started A10 dev board EMIF and DDR4 project, it worked fine at beginning, but don't know why it suddenly failed compile while I ran NIOS2 Platform Designer HDL generation. here is the error message. I thought the file was protected by other app, so I deleted them, but it still had same error. I reboot the windows, deleted the files, none of them can solve the problem. please give me some suggestion. thanks, David Error: Error writing xml report java.io.FileNotFoundException: C:\FPGA\an812_orig\Created\ip\sysA\sysA_nios2_gen2_0\sysA_nios2_gen2_0.xml (The requested operation cannot be performed on a file with a user-mapped section open) Error: qsys-generate failed with exit code 1: 1 Error, 0 Warnings Replies: Re: Platform Designer Error, please help I’m glad that your question has been addressed, I now transition this thread to community support. If you have a new question, feel free to open a new thread to get the support from Intel experts. Otherwise, the community users will continue to help you on this thread. Thank you. Replies: Re: Platform Designer Error, please help I thought I make a copy of directory and move it to somewhere, but the tools will remember the old directory. it works now. Thank you, David Replies: Re: Platform Designer Error, please help May be you have relocated the saved qsys to a different folder or you have changed the Quartus installation directory. You may try not to change the directory.