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Buildpack fails on Heroku-20 stack with "Package libsensors4 is not available" error #216

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edmorley opened this issue Oct 24, 2020 · 2 comments · Fixed by #223
Closed

Buildpack fails on Heroku-20 stack with "Package libsensors4 is not available" error #216

edmorley opened this issue Oct 24, 2020 · 2 comments · Fixed by #223
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enhancement

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@edmorley
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Hi!

Heroku-20 beta was just released:
https://devcenter.heroku.com/changelog-items/1937

Trying this buildpack on a Heroku-20 app, the build currently fails with:

$ git init
$ h create --stack heroku-20
$ h buildpacks:add https://github.com/DataDog/heroku-buildpack-datadog
$ h buildpacks:add heroku/python
$ touch requirements.txt
$ git add -A && git commit -m '.' && git push heroku main
...
remote: -----> Datadog app detected
remote: -----> Updating apt caches for dependencies
remote:        Get:1 http://apt.postgresql.org/pub/repos/apt focal-pgdg InRelease [81.6 kB]
remote:        Get:2 http://apt.postgresql.org/pub/repos/apt focal-pgdg/main amd64 Packages [299 kB]
remote:        Get:3 http://archive.ubuntu.com/ubuntu focal InRelease [265 kB]
remote:        Get:4 http://archive.ubuntu.com/ubuntu focal-security InRelease [107 kB]
remote:        Get:5 http://archive.ubuntu.com/ubuntu focal-updates InRelease [111 kB]
remote:        Get:6 http://archive.ubuntu.com/ubuntu focal/universe amd64 Packages [11.3 MB]
remote:        Get:7 http://archive.ubuntu.com/ubuntu focal/main amd64 Packages [1,275 kB]
remote:        Get:8 http://archive.ubuntu.com/ubuntu focal-security/main amd64 Packages [428 kB]
remote:        Get:9 http://archive.ubuntu.com/ubuntu focal-security/universe amd64 Packages [630 kB]
remote:        Get:10 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages [784 kB]
remote:        Get:11 http://archive.ubuntu.com/ubuntu focal-updates/universe amd64 Packages [840 kB]
remote:        Fetched 16.2 MB in 4s (4,056 kB/s)
remote:        Reading package lists...
remote: -----> Installing dependencies
remote:        Reading package lists...
remote:        Building dependency tree...
remote:        Package libsensors4 is not available, but is referred to by another package.
remote:        This may mean that the package is missing, has been obsoleted, or
remote:        is only available from another source
remote:        However the following packages replace it:
remote:          libsensors-config
remote:
remote: W: --force-yes is deprecated, use one of the options starting with --allow instead.
remote: E: Package 'libsensors4' has no installation candidate
remote: E: Unable to locate package libsnmp30
remote:  !     Push rejected, failed to compile Datadog app.

It looks like the packages list needs tweaking slightly when $STACK is "heroku-20".

Many thanks :-)
@arapulido
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Sure, we will work on this. Thanks for reporting!

@arapulido arapulido mentioned this issue Nov 10, 2020
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This was referenced Dec 17, 2020
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Closed
@edmorley edmorley changed the title Add support for Heroku-20 Buildpack fails on Heroku-20 stack with "Package libsensors4 is not available" error Dec 27, 2020
@edmorley
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edmorley commented Dec 28, 2020 •
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For anyone still seeing this error message, check that your app doesn't have a pinned Datadog buildpack version.

ie: Run heroku buildpacks, and check that the https://github.com/DataDog/heroku-buildpack-datadog URL shown doesn't have a version tag specified at the end (ie: a #X.Y.Z suffix).

If it does, overwrite that URL with the recommended version-less one, using:
heroku buildpacks:set --index <number> https://github.com/DataDog/heroku-buildpack-datadog
...where <number> is the number of the existing datadog buildpack in the buildpacks list reported by heroku buildpacks.

(Until #229 / #231 this buildpack's installation instructions unfortunately advised pinning the version, which prevents picking up any buildpack fixes such as Heroku-20 support.)

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Remove unneeded deb dependencies DataDog/heroku-buildpack-datadog
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@edmorley @arapulido