Ten symptoms that will tell you, your project is moving into trouble

Your manager asks the status more frequently than ever
Your manager asks others to verify what you are saying is true
Your client speaks about the problem in status meeting than telling you separately
Your client complains about insignificant things
Your client does not respond to your email/message
Your manager or client is trying to micro manage, asking about every minor things and giving directions.
Your team members do not turn up for project meetings
You need to remind your team members about deadlines and important dates
Your team could not find any significant defects in the deliverables before delivering to client
All is going absolutely well in the project for some time

If all are present, it is too late now