can't open/start DrRacket v6.8.0.2 on macOS Sierra 10.12.2

[Geoffrey Knauth]

I downloaded the 20170118 nightly 64bit Mac version of DrRacket v6.8.0.2, and I just can't open the application at all. It shuts down immediately. I've had this with other applications on Sierra, and rebooting the Mac fixed the problem, but this time I can't get the newest snapshot to start. My MBP is a 2012 edition(no touchbar temporarily requiring 32bit DrRacket).

Just wondering if I'm the only one in this situation. I can certainly go back to the v6.7.0.1 I had been using, but I was hoping to try out the latest and greatest.

Geoff

[Alex Knauth]

> On Jan 18, 2017, at 4:45 PM, Geoffrey Knauth <ge...@knauth.org> wrote:
>
> I downloaded the 20170118 nightly 64bit Mac version of DrRacket v6.8.0.2, and I just can't open the application at all. It shuts down immediately. I've had this with other applications on Sierra, and rebooting the Mac fixed the problem, but this time I can't get the newest snapshot to start. My MBP is a 2012 edition(no touchbar temporarily requiring 32bit DrRacket).
>
> Just wondering if I'm the only one in this situation. I can certainly go back to the v6.7.0.1 I had been using, but I was hoping to try out the latest and greatest.

I had this problem too, but running raco setup fixed it. Also, opening DrRacket from the command line via ./bin/drracket should work within the Racket v6.8.0.2 directory.

Alex Knauth

> Geoff

[Vincent St-Amour]

My guess would be that it's related to the nightly builds not being
signed (which is a problem for Sierra), but if 6.7.0.1 (which also looks
like a nightly build, unless you built it from source) is working for
you, then that may not be it.

6.8 should be coming out before the end of the month (and be signed). In
the meantime, 6.8 pre-release builds are available from
pre-release.racket-lang.org (and should also be signed).

Signing nightly builds is on the to-do list.

Vincent

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[Robby Findler]

This message from Matthew (and a few others like it) are probably relevant.

https://groups.google.com/forum/#!topic/racket-users/4Bl5OcU6DOI

Robby

[Geoffrey Knauth]

Thanks Alex, Vincent and Robby [and Matthew]! I'll remember all your tricks. What worked this time was the Matthew-trick Robby referenced about moving the .app to the enclosing folder and then putting it back in the correct folder. But it's good to know there are other ways.

Geoff