DSP Builder MATLAB invalid MEX file - DSP Builder MATLAB invalid MEX file Hello, I use MATLAB R2022b with Quartus Prime Standard 19.1 and DSP Builder 19.1. But it does not work as expected. Here is what I do. Open “DSP Builder – Start in MATLAB R2022b_x64” Open Simulink DSP Builder – New Model Wizard MATLAB Command Window tells me Making new model of type Fixed-Point IP (simple testbench)...A copy of the original file "test1.mdl" has been created because it was last saved in an earlier version of Simulink. To recover the original version, rename the file "test1.mdl.r2013a" as "test1.mdl". You can turn this feature off using the Simulink Preferences. Click here if you don't want to see this message again. Error while obtaining sizes from MEX S-function 'mip_chanview' in 'test1/ChanView'. DSP Builder – New Model Wizard – Output shows (see figure below, in red font) Error from MATLAB: Error while obtaining sizes from MEX S-function 'mip_chanview' in '<a ref="matlab:open_and_hilite_hyperlink ('test1/ChanView','error')">test1/ChanView</a>'. Sometimes it shows instead Error from MATLAB: Error while obtaining sizes from MEX S-function 'mip_control' in '<a href="matlab:open_and_hilite_hyperlink ('test1/Control','error')">test1/Control</a>'. Open test1.mdl Click on “Hardware generation is on / Automatic testbenches are on” to open the "DSP Builder for Intel FPGAs Blockset – Settings" Click OK (with or without changing the settings) Matlab Command Window Error using ControlInit Error while obtaining sizes from MEX S-function 'mip_control' in 'test1/Control'. Error in dspba.SettingsLaunch - Show complete stack trace Caused by: Error using ControlInit Invalid MEX-file 'C:\APPS\Altera19\quartus\dspba\Blocksets\BaseBlocks\windows64\mip_control.mexw64': The specified module could not be found. - Show complete stack trace With “Dependency Walker” I found out, that multiple dll’s are missing . There are so many missing, that I can’t add them manually. How can I fix that? By accident I found out that the error disappears, when I first "run" the model and then open&OK the block. But then I get instead the following warning in the MATLAB command window Warning: Error parsing: unable to open primary document entity 'C:/Test_DSP1/test1_params.xml' > In ControlInit In ControlInit In dspba.SettingsLaunch Warning: Error parsing: unable to open primary document entity 'C:/Test_DSP1/test1_params.xml' > In ControlInit In dspba.SettingsLaunch What does that mean? Thank you for your support Replies: Re: DSP Builder MATLAB invalid MEX file Hi, As we do not receive any response from you on the previous answer that we have provided. Please login to ‘ https://supporttickets.intel.com ’, view details of the desire request, and post a response within the next 15 days to allow me to continue to support you. After 15 days, this thread will be transitioned to community support. The community users will be able to help you on your follow-up questions. Thank you Kshitij Goel Replies: Re: DSP Builder MATLAB invalid MEX file Hi, MATLAB R2022b is not supported with Q19.1. Please refer to the below link. https://www.intel.com/content/www/us/en/docs/programmable/683322/22-4/system-requirements.html Please try with the compatible and supported version of Quartus with MATLAB. Thank you Kshitij Goel Replies: Re: DSP Builder MATLAB invalid MEX file Hello, Thank you for your response. It's just the exapmle that the "DSP - New Model Wizard" builds for me. You find the files attached. Replies: Re: DSP Builder MATLAB invalid MEX file Hi, Can you please share your model, So that I will try to replicate the issue at my end. Thank you Kshitij Goel