From 28ba735b254fb8a0d8fa7ec4515923178b0ddc4c Mon Sep 17 00:00:00 2001
From: master <janis@fnet.lv>
Date: Mon, 26 Mar 2018 22:29:37 +0300
Subject: [PATCH] makes friendly error message for TypeError: Cannot read
 property 'attrToRemove' of undefined     at ViewCompiler._compileElement
 (aurelia-templating.js)

---
 src/view-compiler.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/view-compiler.js b/src/view-compiler.js
index 35045a4a..db9d2687 100644
--- a/src/view-compiler.js
+++ b/src/view-compiler.js
@@ -393,7 +393,11 @@ export class ViewCompiler {
           } else if (elementProperty) { //custom element attribute
             elementInstruction.attributes[info.attrName].targetProperty = elementProperty.name;
           } else { //standard attribute binding
-            expressions.push(instruction.attributes[instruction.attrName]);
+            if (typeof instruction.attributes[instruction.attrName] == 'undefined') {
+              console.log('Fatal error in attribute',instruction.attrName)
+            } else {
+              expressions.push(instruction.attributes[instruction.attrName]);
+            }
           }
         }
       } else { //NO BINDINGS