Unable to perform assignment because value of type 'casadi.SX' is not convertible to 'double'.

I am using CASADi for implementation and getting following error:

Unable to perform assignment because value of type 'casadi.SX' is not

convertible to 'double'.

Caused by:

Error using double

Conversion to double from casadi.SX is not possible.

If I use full() command or full(evalf()), the error changes to

Error using casadi.GenericMatrixCommon/evalf

.../casadi/core/sx_function.cpp:71: Cannot evaluate "f:()->(o0[15])

SXFunction" since variables [P_54, P_55, P_56, P_61, P_57, P_62, P_58, P_63,

P_59, P_64, P_60, P_65] are free.

But I have already assigned numeric values to these P_59 and remaining.

Kindly help me to solve this error.

Thank you in advance!

[Walter Roberson]

(This appears to be related to the third party program https://web.casadi.org/ )

Answer 1

[xiaoting wang]

Hello,

Have you solved the problem. I have the same issue.

Thanks!