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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Saving of the ODE ................................................. done!
Saving 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'.
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Error in ==> D:\课题\DOTcvp\src_code\dotcvp_cvdx_f_matlab.p>dotcvp_cvdx_f_matlab at 89
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8 G+ W/ ^4 ~  |2 f9 }Error in ==> D:\课题\DOTcvp\src_code\dotcvp_single_optimization.p>dotcvp_single_optimization at 169


/ \& z1 ]) G1 m' [1 zError in ==> D:\课题\DOTcvp\src_code\dotcvp_hybrid_strategy.p>dotcvp_hybrid_strategy at 63
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% d5 R4 G5 X. r7 r6 \# `9 aError in ==> D:\课题\DOTcvp\src_code\dotcvp_main.p>dotcvp_main at 46


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