1 files changed, 6 insertions, 0 deletions

diff --git a/src/api/wix/WixToolset.Extensibility/Services/IMessaging.cs b/src/api/wix/WixToolset.Extensibility/Services/IMessaging.cs
index fe77f2a4..15e17e63 100644
--- a/src/api/wix/WixToolset.Extensibility/Services/IMessaging.cs
+++ b/src/api/wix/WixToolset.Extensibility/Services/IMessaging.cs
@@ -16,6 +16,12 @@ namespace WixToolset.Extensibility.Services
         bool EncounteredError { get; }
 
         /// <summary>
+        /// Gets the number of errors encountered thus far.
+        /// </summary>
+        /// <value>The number of errors encountered.</value>
+        int ErrorCount { get; }
+
+        /// <summary>
         /// Gets the last error code encountered during messaging.
         /// </summary>
         /// <value>The exit code for the process.</value>