The Parallel Computing Toolbox is not available. Please make sure that it is installed and that a license is available. Could not successfully communicate with the GPU. The class must call detectGPUInputs in the setupImpl method to use this method. Changing the size or type of input {0,number,integer} is not allowed without first calling the release method. Changing the complexity (from real to complex) of input {0,number,integer} is not allowed without first calling the release method.