dsolve throwing an error while trying to solve system of ODEs

Question

syms X1(t) X2(t) X3(t) X4(t) X5(t) X6(t) X7(t) X8(t) X9(t) X10(t)
X = [X1; X2; X3; X4; X5; X6; X7; X8; X9; X10];
X0 = X_0;
eqn = diff(X) == -1*A*X;
[X1Sol(t) X2Sol(t) X3Sol(t) X4Sol(t) X5Sol(t) X6Sol(t) X7Sol(t) X8Sol(t) X9Sol(t) X10Sol(t) ] = dsolve(eqn, X0);

Where A is some 10x10 Matrix and X_0 is a column vector with 10 elements whose values are calculated beforehand. When I compile this code Matlab throws me the following error:

Error using mupadengine/feval (line 157) MuPAD error: Error: Invalid equations. [ode::new]

Error in dsolve>mupadDsolve (line 325) T = feval(symengine,'symobj::dsolve',sys,x,options);

Error in dsolve (line 186) sol = mupadDsolve(args, options);

Can anyone tell me what is going on and what is the rectification? I use Matlab R2012a.

Answer 1

I fail to find any error when include X_0 and A in sysms

syms X1(t) X2(t) X3(t) X4(t) X5(t) X6(t) X7(t) X8(t) X9(t) X10(t) X_0 A
X = [X1; X2; X3; X4; X5; X6; X7; X8; X9; X10];
X0 = X_0;
eqn = diff(X) == -1*A*X;
[X1Sol(t) X2Sol(t) X3Sol(t) X4Sol(t) X5Sol(t) X6Sol(t) X7Sol(t) X8Sol(t) X9Sol(t) X10Sol(t) ] = dsolve(eqn,X0)