[Simulink] Invalid dimensions specified for input port

I'm trying to simulate a simple state space system with feedback. The model I made is the following

This are the variables I'm using

It's clear A is 2x2, B is 2x1, C and K are 1x2 and D is a scalar value. When I run the simulation, I get the following error

The state vector x should be 2x1, rendering the matrix product K*x valid, but I'm getting an error. How can I solve this? Should I configure the output of the transfer block? I tried but I couldn't

Answer 1

[Miguel Perez Andrade]

The problem was I was integrating with a transfer function, instead of using the integrator block. They look the same in appearance, so beware