To keep MATLAB software running efficiently, MATLAB limits the depth to which you can nest parentheses, brackets, and braces. This file has exceeded that limit. Each left parenthesis, square bracket, or brace must have a matching right parenthesis, bracket, or brace. This message appears primarily when .m programs are written by other programs, and typically when the resulting .m programs initialize large data structures.

Because code that exceeds the nesting limit also fails when you run that code, is important to fix the problem. If a program is generating the file, you can try modifying the program so it generates less nesting.