No Synthesis tool available on system path Problem with Simulink HDL Coder

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I'm a user of Quartus Web edition 10.1 and I'm trying to create a Quartus project via Simulink HDL Coder, but HDL workflow advisor says that there aren't synthesis tool on system path.

How can I fix it?

PS: My matlab version is 2010b

Thanks in advance

Gildo

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you must run this line on MATLAB command prompt

hdlsetuptoolpath('ToolName', 'Altera Quartus II','ToolPath', 'C:\altera\13.0\quartus\bin64\quartus.exe');