In lein 2.1 using `lein deps :tree` will print out any version ranges
it finds. Hopefully this helps with when noticing similar dependency
issues.

On Sat, Mar 2, 2013 at 5:42 PM, Nelson Morris <nmor...@nelsonmorris.net> wrote:
> On Sat, Mar 2, 2013 at 4:17 PM, Frank Siebenlist
> <frank.siebenl...@gmail.com> wrote:
>>> ...
>>> The chain causing problems for you is:
>>>
>>> [clj-ns-browser "1.3.0"] -> [seesaw "1.4.2"] -> [j18n "1.0.1"] ->
>>> [org.clojure/clojure "[1.2,1.5)"]
>>>
>>> The last one there allows clojure below 1.5, which includes -RC17.  As
>>> soon as you bump to to 1.5 it ignores the "soft" version in your
>>> :dependencies, and chooses one in the range based on your other
>>> dependencies.
>>>
>>> You should just need the :exclusion in clj-ns-browser.
>>>
>>> -
>>> Nelson Morris
>>
>> As i'm responsible for the clj-ns-browser release...
>> And although the dependency issue seems another 2 levels down, can i specify 
>> anything differently in my project file to prevent this?
>
> You could add the a similar exclusion for org.clojure/clojure in the
> seesaw dependency declaration, but I'd just wait for the next seesaw
> release which will handle it.
>
>>
>> Or is this a bug in leiningen's dependency resolution?
>>
>
> Unfortunately it's behaviour defined by maven.  In order to be
> compatible lein has to do the same thing.
>
> I've written up a few things about version ranges at
> http://nelsonmorris.net/2012/07/31/do-not-use-version-ranges-in-project-clj.html
> and in some other mailing list threads.  The confusion about what can
> happen with dependencies led me to make
> https://github.com/xeqi/lein-pedantic, which is helpful for some
> cases.  In addition, I hope to get some easier debugging for this case
> into lein itself; issues at:
> https://github.com/technomancy/leiningen/issues/734 and
> https://github.com/cemerick/pomegranate/issues/54

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