In MEAN stack development, certain mistakes can derail projects if not addressed promptly. One major red alert is neglecting proper error handling; failing to manage errors can lead to poor user experiences and system crashes. Another common mistake is hardcoding configuration values instead of using environment variables; this practice reduces flexibility across different deployment environments. Additionally, overlooking security measures such as input validation exposes applications to vulnerabilities like SQL injection attacks. Lastly, inadequate documentation hampers collaboration among team members; thorough documentation is essential for maintaining project continuity as teams evolve. For more information please visit https://shorturl.at/2l25B