Dimension for sparse matrix concatenation must be <= 2. Arrays being catenated have incompatible classes. Number of fields in structure arrays being concatenated do not match. Concatenation of structure arrays requires that these arrays have the same set of fields. Names of fields in structure arrays being concatenated do not match. Concatenation of structure arrays requires that these arrays have the same set of fields. This concatenation operation includes an empty array with an incorrect number of columns.\nConcatenation including empty arrays will require all arrays to have the same number of columns in a future release. This concatenation operation includes an empty array with an incorrect number of rows.\nConcatenation including empty arrays will require all arrays to have the same number of rows in a future release. Dimensions of cell arrays being concatenated are not consistent. Concatenation involves conversion to sparse of an array with more than 2 dimensions. Dimensions of object arrays being concatenated are not consistent. Dimensions of arrays being concatenated are not consistent. Inconsistent concatenation dimensions because a {0} ''{1}'' array was converted to a {2} ''{3}'' array. Consider creating arrays of the same type before concatenating. Dimensions of resulting array are not consistent with dimensions of arrays being concatenated. DIM input exceeds maximum number of dimensions. Dimension argument must be a real, positive, integer scalar.