DSP Builder doesn't compile the Simulink files

Hello, thank you for see this post.

DSP Builder doesn't compile the Simulink files.

I'm using MATLAB R2013 Student Version.

I want to transform my original Simulink file

into VHDL file by SignalCompiler(DSP Builder)

in order to implement to CycloneⅢ EP3C 120 FPGA Development Board

by Quartus Ⅱ 12.1sp1 Web Edition(32bit).

But when I open the window of Signal Compiler

and push the button to compile the file, this message appears↓

Info: Generating HDL

Info: Analyzing Simulink model

Matlab Error

ﾃGﾃﾉﾁ[ alt_dspbuilder_mdl2xml (line 36)

Java exception occurred:

com.altera.dspbuilder.common.DSPBuilderException: Unable to obtain a DSP Builder license. Please check that your LM_LICENSE_FILE environment variable is set to a valid license file or license server. LM_LICENSE_FILE is currently "1800@192.168.101.6".

at com.altera.dspbuilder.serialisation.ModelSerialiser.<init>(Unknown Source)

at com.altera.dspbuilder.serialisation.ModelSerialiser.<init>(Unknown Source)

at com.altera.dspbuilder.serialisation.ModelSerialiser.<init>(Unknown Source)

Error: Error during compilation: Error: Error analyzing model see log for details.

This message also appears when I compile the existing test program.

For example,"in_out.mdl".

What is wrong???