As stated in the comment, removing the space in the Handlebars expression will help:
<div id="container">
<h1>My App</h1>
{{view Ember.TextField valueBinding="newEntryName" action="addEntry"}}
{{#each array}}
<li></li>
{{/each }}
</div>
The exception seemed to me as if the precompiler did not expect a space at that position :-)