heroku outputs "error fetching custom buildpack", but only sometimes

Question

I have a Django project hosted on Heroku with a buildpack forked from cirlabs/heroku-buildpack-geodjango. Sometimes when I push to Heroku it responds with

Counting objects: 16, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (9/9), done.
Writing objects: 100% (9/9), 790 bytes, done.
Total 9 (delta 7), reused 0 (delta 0)

-----> Heroku receiving push
-----> Fetching custom buildpack... failed
 !     Heroku push rejected, error fetching custom buildpack

To git@heroku.com:taplister-staging.git
 ! [remote rejected] dev -> master (pre-receive hook declined)
error: failed to push some refs to 'git@heroku.com:heroku-app.git'

I'm wondering if this may be an error with the buildpack itself, or if it's something about how Heroku interacts with github?

Oh, also among my heroku config is the buildpack URL

BUILDPACK_URL:              https://github.com/taplister/heroku-buildpack-geodjango

Any insights are greatly appreciated.

score 12 · Accepted Answer · answered Aug 15 '12 at 20:26

12

This occasionally happens. Since you're using a custom buildpack, each time you push Heroku will download the buildpack over Git, and then use it to process your build.

Sometimes, depending on issues (network latency, temporary downtime, whatever) Heroku just won't be able to finish the Git clone, and will fail with the above error.

This is a known issue, and the only way around it is to retry the push.

answered Aug 15 '12 at 20:26

rdegges

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for the record: this has been happening to me more and more... it eventually goes through though – Jiaaro Sep 27 '12 at 20:33
same problem here. Sometimes it takes many tries, unfortunatley – Alexis Sep 27 '12 at 21:38
@Jiaaro et al. now it does not seem to work at all - for me. Anyone else? – Alexis Sep 27 '12 at 21:43
I've had the same problem for the last hour with https://github.com/jruby/heroku-buildpack-jruby. – dwhalen Sep 27 '12 at 21:49
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I'm trying to push the heroku-buildpack-multi for the last hour with no success – Nícolas Iensen Apr 01 '14 at 23:30
1

You are not alone @nicolasiensen. – Erik Apr 01 '14 at 23:34
hey @Erik it probably was a connection issue, it's working now – Nícolas Iensen Apr 02 '14 at 15:33
Yep -- for me as well. Nice to know when others are seeing the error though to confirm it is not a local issue. – Erik Apr 02 '14 at 15:42
1

I have same problem with dokku. Reboot of server saved my life! – Stepan Zakharov Nov 17 '15 at 15:55
I have this error now, and github seems down. Can't be a coincidence, the url is : https://github.com/heroku/heroku-buildpack-nodejs – Philippe David Jan 28 '16 at 00:38

heroku outputs "error fetching custom buildpack", but only sometimes

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