when I start my simulation file, call to Matlab function 'sum' aborted and a message like bellow appears
message:
''the working dimension was selected automatically, is variable-length, and has length 1 at run-time. This is not supported. Manually select the working dimension by supplying the DIM argument. Block Extended Kalman Filter/Extended Kalman Filter (#23) While executing: State During Action.''
what should I do?