hi,when i do the "DE2_SD_Card_Audio" ,i fellow the steps like below Running the Design ------------------ 1) Launch the Quartus II software. 2) Open the DE2_SD_Card_Audio.qpf project located in the <install path>\DE2_SD_Card_Audio folder. (File menu -> Open Project) 3) Open the Programmer window. (Tools menu -> Programmer) 4) The DE2_SD_Card_Audio.sof programming file should be listed. Check the 'Program/Configure' box and set up the JTAG programming hardware connection via the 'Hardware Setup' button. 5) Press 'Start' to start programming. The design should now be programmed. 6) Launch the Nios II IDE. 7) Switch the workspace to the <install path>\DE2_SD_Card_Audio folder. 8) Build the project. (Project menu -> Build All) 9) Run the project on the board. (Run menu) there is a problem when i do the setp 7). the nios II ide said "project conversition failed for project hello_led0 with the following error: error loading manged make project information for project hello_led0. the tool definitions used to create the project are available."
I think the error-message indicate what version is built the project,but yesterday I found another way .. open the project (qpf) with Quartus (the version installed on your computer) and then open SOPC Builder from the tools menu. with the same settings push 'Generate' button to regenerate the project. when generation compete push 'exit' button as the programme suggest. now open the NIOSII and build the project and RUN. perhaps to work with the new SOPC. it worked for me!!!