The EIGRP example named "basic" at examples\ansa\eigrp\basic fails.
The configuration named "Scenario2" fails.
The scenario appears to be using some out-of-date attribute.
As defined in the scenario2.xml file, the following line fails:

:: interfacedown module="R2.interfaceStateManager" int="eth1"

rewritten with OMNeT++ 5.0 and ANSA 3.4 the following replacement was provided:

:: disconnect src-module="R2" src-gate="ethg$o[1]"

The simulation then proceeded past the disconnect event until it quickly failed via:

event #2153, t=13.00006442 : ASSERT: condition oldSuccessor != NULL false in function processTransition6, ansa/routing/eigrp/EigrpDual.cc line 584.

I assume this issue is duplicated across many other examples.