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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' d9 a5 F5 J* I: \5 b! P. CSaving 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'.

Error in ==> D:\课题\DOTcvp\src_code\dotcvp_cvdx_f_matlab.p>dotcvp_cvdx_f_matlab at 89


7 d/ i+ S2 J; z: W9 H+ R. D4 h0 xError in ==> D:\课题\DOTcvp\src_code\dotcvp_single_optimization.p>dotcvp_single_optimization at 169


1 j4 M8 O8 i% l  g9 G9 oError in ==> D:\课题\DOTcvp\src_code\dotcvp_hybrid_strategy.p>dotcvp_hybrid_strategy at 63
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Error in ==> D:\课题\DOTcvp\src_code\dotcvp_main.p>dotcvp_main at 46

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