大神请进！国际先进的控制软件DOTcvp不能调用DOTcvp\dotcvp_main，有用过的没?

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我的DOTcvp不能调用DOTcvp\dotcvp_main，有没有大神用过。

  _7 E! ^! H) Y% oSaving of the ODE ................................................. done!
$ |7 e  [, S, D6 aSaving of the inequality constraints .............................. done!
Generation of the file: cvm_rhs.m (ODE - MATLAB) .................. ??? Undefined function or method 'sym' for input arguments of type 'char'.

Error in ==> D:\课题\DOTcvp\src_code\dotcvp_cvdx_f_matlab.p>dotcvp_cvdx_f_matlab at 89
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/ U5 |6 ]0 P5 ?, R/ sError in ==> D:\课题\DOTcvp\src_code\dotcvp_single_optimization.p>dotcvp_single_optimization at 169
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Error in ==> D:\课题\DOTcvp\src_code\dotcvp_hybrid_strategy.p>dotcvp_hybrid_strategy at 63

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- _: {" n( I, ?& I/ A+ N) R4 IError in ==> D:\课题\DOTcvp\src_code\dotcvp_main.p>dotcvp_main at 46
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