Invalid or deleted figure handle. First argument must be a valid figure handle First argument must be a figure handle created using the uifigure function. Figure handle ''Visible'' value must be ''on''. AppContainer handle ''Visible'' value must be true ''Message'' must be a char array, string array or a cell array of character vectors. ''Title'' must be a char array or a string scalar. Incorrect number of name-value pairs. Each parameter name must be followed by a corresponding value. Parameter name must be a character vector or a string scalar. Invalid parameter name ''{0}''. Valid names are ''{1}''. Icon value must be 'error', 'warning', 'info', 'question', 'success', 'none', a valid file path, or an m-by-n-by-3 color data matrix. ''{0}'' value must be ''{1}'', ''{2}'', ''{3}'', or ''{4}''. Unable to read icon file. Continuing without icon file. ''Modal'' value must be true or false. ''CloseFcn'' value must be a character vector, a function handle, or a cell array containing a character vector or a function handle. Error while evaluating ''CloseFcn'' for dialog.\n\n{0}\n OK Cancel Cancel Requested Options must be a character vector or a string scalar containing 1 option or a cell array of character vectors or a string array containing 1 to 4 options. ''{0}'' must be a character vector or a string scalar from the 'Options' cell array or an index of the 'Options' cell array Unable to open URL ''{0}'': {1} Unable to open URL without a valid URL scheme.