Problem:
Server Tomcat v7.0 Server at localhost was unable to start within 45 seconds. If the server requires more time, try increasing the timeout in the server editor.
Solution:
Modify file: workspace\.metadata\.plugins\org.eclipse.wst.server.core\servers.xml.
1. Change start-timeout="45" to start-timeout="1000" (or longer according to different projects) in servers.xml
2. Restart eclipse.