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<a href="http://github.com/angular/angular.js/edit/master/docs/content/error/resource/badmember.ngdoc" class="improve-docs btn btn-primary"><i class="icon-edit"> </i> Improve this doc</a><h1><code ng:non-bindable="">Syntax error in param value using @member lookup</code> <div><span class="hint">error in component <code ng:non-bindable="">$resource</code> </span> </div> </h1> <div><pre class="minerr-errmsg" error-display="Dotted member path &quot;@{0}&quot; is invalid.">Dotted member path "@{0}" is invalid.</pre> <h2 id="description">Description</h2> <div class="description"><div class="-resource-page -resource-badmember-page"><p>Occurs when there is a syntax error when attempting to extract a param value from the data object.</p> <p>Here&#39;s an example of valid syntax for <code>params</code> or <code>paramsDefault</code>:</p> <pre><code class="lang-javascript">{ bar: &#39;@foo.bar&#39; }</code></pre> <p>The part following the <code>@</code>, <code>foo.bar</code> in this case, should be a simple dotted member lookup using only ASCII identifiers. This error occurs when there is an error in that expression. The following are all syntax errors</p> <table> <thead> <tr> <th>Value</th> <th>Error</th> </tr> </thead> <tbody> <tr> <td><code>@</code></td> <td>Empty expression following <code>@</code>.</td> </tr> <tr> <td><code>@1.a</code></td> <td><code>1</code> is an invalid javascript identifier.</td> </tr> <tr> <td><code>@.a</code></td> <td>Leading <code>.</code> is invalid.</td> </tr> <tr> <td><code>@a[1]</code></td> <td>Only dotted lookups are supported (no index operator)</td> </tr> </tbody> </table> </div></div> </div>