how can i convert string data from UDP Read to Cluster of U16 U8 U16 and U16[] using unflatten from string

Hello all

I need to read incoming data using UDP and then convert read UDP_string data to Typedef Cluster of U16 U8 U16 and U16[]. i tried using Unflatten from string pallete to wire type def cluster to Type terminal and then wire UDP Read string to binary string and passing "true" constant to terminal "Data Includes Array". I am getting error 74. Not sure what could be the reason for this error. Please help me with a best way to deal with this.