Bit belated, but did you find a solution for this? I just stumbled on the
same thing with figwheel.
On Saturday, October 1, 2016 at 11:39:03 PM UTC-4, James Gatannah wrote:
>
> I recently decided to try out devcards. I got an error because my
> ancient java version is no longer supported. I've been meaning to
> upgrade that dev environment, so I went ahead and bumped it from
> ubuntu 14.04 to 16.04.
>
> Once that was finished, I went back to my experimental devcards
> project to try again.
>
> `lein check` ran fine, but `lein repl` led to a stack trace caused by
> "java.lang.IllegalArgumentException: Malformed assignment, expecting
> (set! target val)"
>
> The problem happened when it tried to compile
> /tmp/form-init${long-number}.clj:1:7567.
>
> Trying to google for that error just led me to the basic compiler
> code. Something is trying to call the set! special form without two
> arguments.
>
> OK, fine. I'd started from a figwheel project template and tweaked
> some things like dependency versions (the biggest change was switching
> clojure from 1.8.0 to 1.9.0-alpha12). So I generated a fresh
> plain-jane vanilla `lein new devcards foo` project. It looks like this
> was just updated today, so I may be comparing apples to oranges.
>
> Except that had the same problem.
>
> So I grabbed the file in /tmp/ to examine. There aren't many calls to
> set!.
>
> The one it's complaining about is
> `(set! *print-length* 50 do (clojure.core/require (quote
> whidbey.repl)) (whidbey.repl/init! {:whidbey-options "from my
> profiles.clj"}))`
>
> In ~/.lein/profiles.clj, under user, I have a :repl-options key which
> has the value {:nrepl-middleware []}. (That needs to go away,
> obviously).
>
> Then there's a :whidbey key, with the values that were injected into
> that broken (set!) call.
>
> The "problem line" is inside the project.clj that was generated by the
> devcards/figwheel templates:
>
> :profiles {:dev {:repl-options {:init (set! *print-length* 50)}}}
>
> If I just delete that option, the REPL starts fine. I haven't done any
> experimentation beyond that point.
>
> Does this seem extremely odd to anyone else? And does anyone have any
> thoughts about what the real underlying problem might be? Or even
> suggestions about useful experiments I could try to narrow the problem
> down?
>
> Thanks,
> James
>
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