Icinga Version: 2.1.1

object Host "xxx-host" {
  import "test-generic-host"
  address = "12.3.4"
  vars.agent = "nrpe"
}

apply Service "xxx-service" {
  import "test-generic-service"
  check_command = "ping4"
  assign where host.agent == "nrpe" // wrong definition here
}

[2014-09-30 16:38:22 +0200] information/ConfigItem: Validating config items (step 1)...
[New Thread 0x7ffff7fb2700 (LWP 8935)]
[New Thread 0x7ffff7f71700 (LWP 8936)]
[New Thread 0x7ffff7f30700 (LWP 8937)]
[New Thread 0x7ffff7eef700 (LWP 8938)]
Caught unhandled exception.
Current time: 2014-09-30 16:38:22 +0200

Application information:
  Application version: v2.1.1-7-g954debf
  Installation root: /tmp/icinga2
  Sysconf directory: /tmp/icinga2/etc
  Run directory: /tmp/icinga2/var/run
  Local state directory: /tmp/icinga2/var
  Package data directory: /tmp/icinga2/share/icinga2
  State path: /tmp/icinga2/var/lib/icinga2/icinga2.state
  Objects path: /tmp/icinga2/var/cache/icinga2/icinga2.debug
  PID path: /tmp/icinga2/var/run/icinga2/icinga2.pid
  Application type: icinga/IcingaApplication


***
* This would indicate a runtime problem or configuration error. If you believe this is a bug in Icinga 2
* please submit a bug report at https://dev.icinga.org/ and include this stack trace as well as any other
* information that might be useful in order to reproduce this problem.
***

Program received signal SIGABRT, Aborted.
[Switching to Thread 0x7ffff7f71700 (LWP 8936)]
0x00007ffff520c077 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
56  ../nptl/sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb) bt

#0  0x00007ffff520c077 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
#1  0x00007ffff520d458 in __GI_abort () at abort.c:89
#2  0x00007ffff6f8b567 in icinga::Application::ExceptionHandler () at /home/markus/devel/icinga/icinga2/lib/base/application.cpp:611
#3  0x00007ffff5af4ba6 in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#4  0x00007ffff5af4bf1 in std::terminate() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#5  0x00007ffff5af4e59 in __cxa_rethrow () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#6  0x00007ffff6f5d1c9 in icinga::WorkQueue::DefaultExceptionCallback () at /home/markus/devel/icinga/icinga2/lib/base/workqueue.cpp:120
#7  0x00007ffff6f9700a in boost::detail::function::void_function_invoker1::invoke (function_ptr=..., a0=...) at /usr/include/boost/function/function_template.hpp:112
#8  0x00007ffff6f7406d in operator() (a0=..., this=0x7ffff7f70cc0) at /usr/include/boost/function/function_template.hpp:767
#9  icinga::WorkQueue::WorkerThreadProc (this=0x66b928) at /home/markus/devel/icinga/icinga2/lib/base/workqueue.cpp:166
#10 0x00007ffff7bceaea in ?? () from /usr/lib/x86_64-linux-gnu/libboost_thread.so.1.55.0
#11 0x00007ffff721c0a4 in start_thread (arg=0x7ffff7f71700) at pthread_create.c:309
#12 0x00007ffff52bcc2d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111