Vue.js version

2.0.5

Reproduction Link

https://jsfiddle.net/df4Lnuw6/40/

Steps to reproduce

A newbie accidentally creates an empty template, or the template fails to compile, while using the compiler-included build.

What is Expected?

The Vue warning Failed to mount component: template or render function not defined. or similar.

What is actually happening?

The Vue warning You are using the runtime-only build of Vue where the template option is not available. Either pre-compile the templates into render functions, or use the compiler-included build.

This warning message is misleading in the compiler-included build. If it was defined differently in the two builds, this would solve the issue.