Could this be avoided, NO. But could be identified and rectified soon. Here is a tool from Apache, that could help you in the activity. 'Apache Continuum' is a one such tool that helps in triggerin automated builds for your project. They provide with a simple configuration portal that is easy to deploy and start your timely builds. Try it!
Some features that has impressed me are,
- Support for various source repository.
 - They work with Maven projects and could launch a cmd job.
 - Notifications from mail to IRC to Chat clients seems to be comprehensive.
 - Keeping track of the check-ins and some intellegence in triggering a build.