How do I open a pcode (.p) file created in a version older than MATLAB R2007b? My Matlab version is R2018b.

Hello there. I get the following error message. What should I do? Please help me. My Matlab version (R2018b)

The P-code file C:\Users\aa05042\Desktop\lsbstegoprote\hidebits.p was generated prior to MATLAB version

7.5 (R2007b) and is no longer supported. Use pcode to regenerate the file using MATLAB R2007b or later.

Error in test_main (line 19)

[Irec] = hidebits(I,message);