From a8efe6a9a98972dfa1dc1c2c58a7c7e5a51cf43a Mon Sep 17 00:00:00 2001
From: Tomas Matousek <tomat@microsoft.com>
Date: Tue, 30 Jun 2015 16:18:41 -0700
Subject: [PATCH] Workaround for a crash in EditSession when project loads
 after debugging session has started

---
 src/Features/Core/EditAndContinue/EditSession.cs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/Features/Core/EditAndContinue/EditSession.cs b/src/Features/Core/EditAndContinue/EditSession.cs
index daa5f6ae38515..b87642f3ac6fb 100644
--- a/src/Features/Core/EditAndContinue/EditSession.cs
+++ b/src/Features/Core/EditAndContinue/EditSession.cs
@@ -254,6 +254,12 @@ public async Task<ProjectAnalysisSummary> GetProjectAnalysisSummaryAsync(Project
             {
                 var baseProject = _baseSolution.GetProject(project.Id);
 
+                // TODO (https://github.com/dotnet/roslyn/issues/1204):
+                if (baseProject == null)
+                {
+                    return ProjectAnalysisSummary.NoChanges;
+                }
+
                 var documentAnalyses = GetChangedDocumentsAnalyses(baseProject, project);
                 if (documentAnalyses.Count == 0)
                 {