From deee600a659ae017b88badc4890f21e9ba67c9b9 Mon Sep 17 00:00:00 2001 From: F K <54195004+fredjk-gh@users.noreply.github.com> Date: Fri, 29 Oct 2021 07:06:18 -0400 Subject: [PATCH] Adding protection against a null parent reference. (#26) Found this via ReadAll on my history. I can now process all my history without error. --- ObservatoryExplorer/Explorer.cs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/ObservatoryExplorer/Explorer.cs b/ObservatoryExplorer/Explorer.cs index 7110953..07e6115 100644 --- a/ObservatoryExplorer/Explorer.cs +++ b/ObservatoryExplorer/Explorer.cs @@ -177,7 +177,7 @@ namespace Observatory.Explorer var results = DefaultCriteria.CheckInterest(scanEvent, SystemBodyHistory, BodySignalHistory, (ExplorerSettings)ExplorerWorker.Settings); - if (BarycentreHistory.ContainsKey(scanEvent.SystemAddress) && BarycentreHistory[scanEvent.SystemAddress].ContainsKey(scanEvent.Parent[0].Body)) + if (BarycentreHistory.ContainsKey(scanEvent.SystemAddress) && scanEvent.Parent != null && BarycentreHistory[scanEvent.SystemAddress].ContainsKey(scanEvent.Parent[0].Body)) { ProcessScan(ConvertBarycentre(BarycentreHistory[scanEvent.SystemAddress][scanEvent.Parent[0].Body], scanEvent), readAll); }