Cannot start one or more DevTest components because a port is already in use.
In the log file, you find something similar to this:
============================================================================
| Exception:
============================================================================
| Message: Unable to listen for requests on address/port xxxxx. It is either currently in use by another process or is not allowed by the operating system.
----------------------------------------------------------------------------
| Trapped Exception: Address already in use: bind
| Trapped Message:
java.net.BindException: Address already in use: bind
----------------------------------------------------------------------------
STACK TRACE
java.net.BindException: Address already in use: bind
at
sun.nio.ch.Net.bind0(Native Method)
at
sun.nio.ch.Net.bind(Net.java:433)
at
sun.nio.ch.Net.bind(Net.java:425)
...
where xxxxx = the required port.