checkin policy question

i have a solution. with 3 project (p1,p2,p3)

now a developer1 modified and also add more file to p3

user developer1 add p4 to solution and reference p3.

developer1 compile and it work fine, but developeronly checkin p4 but not p3.

other dev get lastest and will fail. is there any kind of checkin policy to prevent this.

[376 byte] By [dealkk] at [2008-2-26]