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I use a MacBook Pro 13 early 2015 model running macOS Mojave, I have 2 partitions right now,(Mac partition APFS and Boot Camp NTFS)
I need to create one more partition to extend my boot camp partition.

When I use Disk Utility to create new MS-DOS partition it is showing an error. What do I do now ?

This is the error I get

Checking the fsroot tree.    
Verifying allocated space.    
Performing deferred repairs.    
error: nchildren of inode object (id 524386) does not match expected value
Deferred repairs failed.    
The volume /dev/disk0s2 could not be verified completely.    
Storage system check exit code is 8.    
Storage system verify or repair failed.    
Operation failed…

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    You cannot extend the Boot Camp partition with Apple software [& whatever you do never attempt it from inside Windows], nor can you add an additional partition from Disk Utility - the maximum is 4, which you now have, including 2 hidden ones. 3rd party software or a long, dark drive down arcane Terminal commands would be your next steps, but check you didn't damage the existing structures first.
    – Tetsujin
    Commented Apr 14, 2019 at 10:12
  • how do I make a new partition with terminal?@Tetsujin
    – Vishnu S manoj
    Commented Apr 14, 2019 at 10:15
  • When I said "a long dark drive" I really meant it - I would avoid it & research software that can do this from a GUI... see apple.stackexchange.com/a/176557/85275 for just one example.
    – Tetsujin
    Commented Apr 14, 2019 at 10:19
  • Can you suggest any 3rd party GUI program that can make it happen ??@Tetsujin
    – Vishnu S manoj
    Commented Apr 14, 2019 at 10:24
  • Software recommendations are off-topic here, however in this case there are only 2 companies that make anything at all that can do this - take your pick...Paragon, Paragon Hard Disk Manager & CampTune & TwoCanoes, WinClone
    – Tetsujin
    Commented Apr 14, 2019 at 10:29

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