qumu,qmp: QError: New QERR_INVALID_KEY

index ac2cdaf..a7ef758 100644
@@ -117,6 +117,10 @@ static const QErrorStringTable qerror_table[] = {
         .desc      = "Invalid block format '%(name)'",
     },
     {
+        .error_fmt = QERR_INVALID_KEY,
+        .desc      = "Invalid key: '%(name)...'",
+    },
+    {
         .error_fmt = QERR_INVALID_PARAMETER,
         .desc      = "Invalid parameter '%(name)'",
     },

index 943a24b..4fa95ef 100644
@@ -102,6 +102,9 @@ QError *qobject_to_qerror(const QObject *obj);
 #define QERR_INVALID_BLOCK_FORMAT \
     "{ 'class': 'InvalidBlockFormat', 'data': { 'name': %s } }"
 
+#define QERR_INVALID_KEY \
+    "{ 'class': 'InvalidKey', 'data': { 'name': %s } }"
+
 #define QERR_INVALID_PARAMETER \
     "{ 'class': 'InvalidParameter', 'data': { 'name': %s } }"