Clojure, fresh install: Unable to resolve symbol: some->
<p>I just installed the latest version of Clojure, and while following the tutorial for Liberator (<a href="http://clojure-liberator.github.io/liberator/tutorial/getting-started.html" rel="nofollow">http://clojure-liberator.github.io/liberator/tutorial/getting-started.html</a>), I get the following exception:</p>

<pre><code>Exception in thread "main" java.lang.RuntimeException: Unable to resolve symbol: some-&gt; in this context, compiling:(clout/core.clj:88)
at clojure.lang.Compiler.analyze(Compiler.java:6281)
at clojure.lang.Compiler.analyze(Compiler.java:6223)
at clojure.lang.Compiler$InvokeExpr.parse(Compiler.java:3497)
at clojure.lang.Compiler.analyzeSeq(Compiler.java:6457)
at clojure.lang.Compiler.analyze(Compiler.java:6262)
... ...
Caused by: java.lang.RuntimeException: Unable to resolve symbol: some-&gt; in this context
at clojure.lang.Util.runtimeException(Util.java:170)
at clojure.lang.Compiler.resolveIn(Compiler.java:6766)
at clojure.lang.Compiler.resolve(Compiler.java:6710)
at clojure.lang.Compiler.analyzeSymbol(Compiler.java:6671)
at clojure.lang.Compiler.analyze(Compiler.java:6244)
... 114 more
Tests failed.
</code></pre>

<p>I'm on Ubuntu 15.04. Leiningen verison 2.5.3. Java version 1.7.0_91.</p>

<p>Lein Repl works just fine, and while it understands <code>(some ...)</code>, it can't resolve <code>(some-&gt; ...)</code></p>

<p>I've been searching for hours, and it looks like <code>some-&gt;</code> should be a standard function for Clojure v1.5+</p>

<p>Why don't I have it?</p>