Failed message from Fix point adviser

Hi, I met a failed message when using Matlab Fix-Point adviser:

>>>2. Prepare for data typing and scalling
>>2.6 Specify block minimum and maximum values

As

'Abnormal exit: Input must be a cell array of strings.'

My question is whether the 'input' means the input block or the minimum/maximum value definition in my model?

The input block name is 'BINP_outputs' and 'Task_time_s' and their minimum & maximum values are all '[]'

[K E]

While I don't have a solution, I did notice that the error "input must be a cell array of strings" crops up with the unique command, see http://www.mathworks.com/support/solutions/en/data/1-BDKG4W/index.html?product=ML&solution=1-BDKG4W .