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。
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, T" a+ W6 Y* w% i- u$ G/ `% DSaving of the ODE ................................................. done!
Saving of the inequality constraints .............................. done!
9 h7 m. G$ ?. x; v4 Z2 zGeneration of the file: cvm_rhs.m (ODE - MATLAB) .................. ??? Undefined function or method 'sym' for input arguments of type 'char'.
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1 x8 x, N* @& c. b. s2 l+ d. ]Error in ==> D:\课题\DOTcvp\src_code\dotcvp_cvdx_f_matlab.p>dotcvp_cvdx_f_matlab at 89

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9 }* @: n0 [& pError 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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4 W! Q7 D' r  J1 z1 rError in ==> D:\课题\DOTcvp\src_code\dotcvp_main.p>dotcvp_main at 46
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