Fix Console metric exporter null reference (#5099)

open-telemetry · Nov 29, 2023 · 014d5a1 · 014d5a1
1 parent a47b222
commit 014d5a1
Showing 1 changed file with 7 additions and 4 deletions.
diff --git a/src/OpenTelemetry.Exporter.Console/ConsoleMetricExporter.cs b/src/OpenTelemetry.Exporter.Console/ConsoleMetricExporter.cs
@@ -75,12 +75,15 @@ public override ExportResult Export(in Batch<Metric> batch)
 
             this.WriteLine(msg.ToString());
 
-            foreach (var meterTag in metric.MeterTags)
+            if (metric.MeterTags != null)
             {
-                this.WriteLine("\tMeter Tags:");
-                if (ConsoleTagTransformer.Instance.TryTransformTag(meterTag, out var result))
+                foreach (var meterTag in metric.MeterTags)
                 {
-                    this.WriteLine($"\t\t{result}");
+                    this.WriteLine("\tMeter Tags:");
+                    if (ConsoleTagTransformer.Instance.TryTransformTag(meterTag, out var result))
+                    {
+                        this.WriteLine($"\t\t{result}");
+                    }
                 }
             }