*scratch*

ubuntu@ip-10-245-89-50:~$ lein
Downloading Leiningen now...
--2012-03-07 23:40:15--  https://github.com/downloads/technomancy/leiningen/leiningen-2.0.0-preview1-standalone.jar
Resolving github.com... 207.97.227.239
Connecting to github.com|207.97.227.239|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: http://cloud.github.com/downloads/technomancy/leiningen/leiningen-2.0.0-preview1-standalone.jar [following]
--2012-03-07 23:40:15--  http://cloud.github.com/downloads/technomancy/leiningen/leiningen-2.0.0-preview1-standalone.jar
Resolving cloud.github.com... 205.251.251.221, 205.251.251.18, 205.251.251.33, ...
Connecting to cloud.github.com|205.251.251.221|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 9811680 (9.4M) [application/java-archive]
Saving to: `/home/ubuntu/.lein/self-installs/leiningen-2.0.0-preview1-standalone.jar'

100%[=====================================================================================================================================================================================================>] 9,811,680   9.67M/s   in 1.0s    

2012-03-07 23:40:16 (9.67 MB/s) - `/home/ubuntu/.lein/self-installs/leiningen-2.0.0-preview1-standalone.jar' saved [9811680/9811680]

Exception in thread "main" java.lang.NullPointerException
        at leiningen.core.classpath$resolve_dependencies.doInvoke(classpath.clj:88)
        at clojure.lang.RestFn.invoke(RestFn.java:464)
        at leiningen.core.project$load_plugins.invoke(project.clj:187)
        at leiningen.core.project$load_plugins.invoke(project.clj:188)
        at leiningen.core.main$_main.doInvoke(main.clj:119)
        at clojure.lang.RestFn.invoke(RestFn.java:397)
        at clojure.lang.Var.invoke(Var.java:397)
        at clojure.lang.AFn.applyToHelper(AFn.java:159)
        at clojure.lang.Var.applyTo(Var.java:518)
        at clojure.core$apply.invoke(core.clj:600)
        at clojure.main$main_opt.invoke(main.clj:323)
        at clojure.main$main.doInvoke(main.clj:426)
        at clojure.lang.RestFn.invoke(RestFn.java:421)
        at clojure.lang.Var.invoke(Var.java:405)
        at clojure.lang.AFn.applyToHelper(AFn.java:163)
        at clojure.lang.Var.applyTo(Var.java:518)
        at clojure.main.main(main.java:37)