private static void BuildIfOutOfDate(bool runBuildsAsync, ReferencedFileSave rfs)
{
if (rfs.GetIsBuiltFileOutOfDate())
{
string error = rfs.PerformExternalBuild(runAsync: runBuildsAsync);
if (!string.IsNullOrEmpty(error))
{
ErrorReporter.ReportError(ProjectManager.MakeAbsolute(rfs.Name, true), error, false);
}
}
}