Avoid potential NRE (#29128)

dotnet · Nov 21, 2022 · 356783e · 356783e
1 parent ac8b0e8
commit 356783e
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/BuiltInTools/dotnet-watch/HotReloadDotNetWatcher.cs b/src/BuiltInTools/dotnet-watch/HotReloadDotNetWatcher.cs
@@ -309,8 +309,8 @@ private void ConfigureExecutable(DotNetWatchContext context, ProcessSpec process
             }
 
             var rootVariableName = EnvironmentVariableNames.TryGetDotNetRootVariableName(
-                project.RuntimeIdentifier,
-                project.DefaultAppHostRuntimeIdentifier,
+                project.RuntimeIdentifier ?? "",
+                project.DefaultAppHostRuntimeIdentifier ?? "",
                 project.TargetFrameworkVersion);
 
             if (rootVariableName != null && string.IsNullOrEmpty(Environment.GetEnvironmentVariable(rootVariableName)))