message: Make an error message more helpful.
diff: @@ -137,7 +137,8 @@ void HoI4World::convertCountry(pair<string, V2Country*> country, map<int, int>&
  V2Party* rulingParty = country.second->getRulingParty(sourceWorld->getParties());
  if (rulingParty == nullptr)
  {
  - LOG(LogLevel::Error) << "Could not find the ruling party for " << country.first << ". Were all mods correctly included?";
  + LOG(LogLevel::Error) << "Could not find the ruling party for " << country.first << ". Most likely a mod was not included.";
  + LOG(LogLevel::Error) << "Double-check your settings, and remember to included EU4 to Vic2 mods. See the FAQ for more information.";
  exit(-1);
  }
  destCountry->initFromV2Country(*sourceWorld, country.second, rulingParty->ideology, leaderMap, governmentJobs, portraitMap, cultureMap, landPersonalityMap, seaPersonalityMap, landBackgroundMap, seaBackgroundMap, states->getProvinceToStateIDMap(), states->getStates());
  