private void VerifyGlobalVariableExists(string globalVariableName)
{
if (!GlobalVariables.Exists(m => m.InternalName == globalVariableName))
{
throw new CampaignConfigException($"Reference to global variable '{globalVariableName}' defined, " +
$"but the global variable itself does not exist. Check the INI/Campaigns.ini file for mistakes." +
Environment.NewLine + Environment.NewLine +
$"If you are an end-user, please delete the INI/Campaigns.ini file and start the client then, or contact the game/mod authors for support.");
}
}
