have error in DSP builder when I use signal compiler

[Altera_Forum]

when i try to compile singen demo by signal compiler.The error message appears: 

 Error: Failed to create Quartus II project singen in directory c:\altera\72\quartus\dsp_builder\DesignExamples\Tutorials\GettingStartedSinMdl\singen_dspbuilder. Error: Error during compilation: Failed to update Quartus II project settings  Pls help me to understand and solve this problem.Thanks you so much !  I am using Matlab R2006b, Quartus 7.2 and DSP builder 7.2 .

[Altera_Forum]

Hey there, Have you checked out the trouble shooter section of the DSP Builder User guide? I believe the section titled "Synthesis Flow Does Not Run Properly" (page 13-3 of the version 7.2 user guide) should help.

[Altera_Forum]

Thanks for caring. Do you mean i should check environment variable? :) .I am sure that all required environment variables are already set correctly.

[Altera_Forum]

Right check environment variable and matlab path... 

 Also possibly delete the IP cache folder (the .altera.quartus folder under C:\Document and Settings\<your user name>\)... sometimes it gets corrupted and causes problems...

[Altera_Forum]

Hey, wronghorizon, you have just helped me solve an SoPC builder problem I have been chasing for a week. 

 The above 'fix' cleared up an issue I was having in my SoPC system not seeing all the DDR2 newer memory controllers in the SoPC componenet list.  Thanks. Avatar.

[Altera_Forum]

Glad that helped Avatar. I experienced the same problem when I moved from 7.2SP1 to 8.0. Someone ought to document that.

[Altera_Forum]

Make sure that you don't have any residual DSP Builder blocks residing in the _import directory (or any of the other directories w/in the project). I had an issue like this in which there were multiple versions of certain FIR filters (but I was only instantiating one of them in the actual MDL file). When the <module_name>_add.tcl file is run in Quartus, it basically looks for any .tcl files in any of the directories and tries to run them. In this case, I traced through the errors in the processing window, and it was trying to load blocks that weren't necessarily valid, just because there were files leftover. 

 Hope this helps.  Jeff

[Altera_Forum]

Hi wronghorizon and jjcannon, 

 I have tried both of your suggestions. I still have the error:   "Error: Failed to create Quartus II project FIRFilter in directory D:\altera\11.0\quartus\dsp_builder\Filter and Data Synchronization\FIRFilter_dspbuilder. Error: Error during compilation: Failed to update Quartus II project settings"  when I try to compile with Signal Compiler. Do you have any other suggestions?   To nguyenthehoang, Did you ever find a solution to this problem?   Thank you all, rushale

[Altera_Forum]

Hi, 

In my case the problem was resolved by removing the spaces from my project folder name. This was confusing the Signal Compiler. Best Regards, rushale