Here is my XML document:
<?xml version="1.0" ?>

<argos-configuration>
<!-- General configuration -->
<framework>
<system threads="0" />
<experiment length="0" ticks_per_second="10" random_seed="124" />
</framework>

<!-- Controllers -->
<controllers>
<footbot_trajectoryplaning_controller id ...

[FATAL] Failed to initialize the space.
[FATAL] Error while trying to distribute entities
[FATAL] Failed to initialize entity "fb00".
[FATAL] Failed to initialize controllable entity "controller_0".
[FATAL] Can't set controller for controllable entity "controller_0"
[FATAL] Unknown entity id "fb0 ...