pub upgrade hanging

[DartBot]

This issue was originally filed by @rbishop-bah

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Build that was working until this morning now hanging on pub upgrade, presumably due to just-released polymer, web_components, smoke, observe, etc. packages.

pub upgrade --verbose shows the pub solver churning endlessly.

What version of the product are you using?
1.10.0

On what operating system?
Win 7 x64

[DartBot]

This comment was originally written by @rbishop-bah

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Actually, pinning unittest: "^0.11.0" gets things working again so it appears pub upgrade is getting confused by having unittest 0.12.0 as an option.

[floitschG]

Added Area-Pub, Triaged labels.

[nex3]

This is a duplicate of issue #16961. Pub's version solving algorithm can run into cases where it goes exponential, and it looks like you've found one of those cases.

If you can provide the pubspec that caused this issue, it may help us add more heuristics to avoid it in the future.

---

Added Duplicate label.
Marked as being merged into #16961.

[DartBot]

This comment was originally written by @rbishop-bah

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name: xxx_webapp
environment:
  sdk: '>=1.9.0 <2.0.0'
dependencies:
  browser: any
  core_elements: "^0.7.0"
  intl: any
  logging: any
  paper_elements: "^0.7.0"
  polymer: "^0.16.0"
  bwu_fontawesome_iconset_svg: "^0.1.1"

  ... + some locally hosted packages that i don't want to share publicly....
dev_dependencies:
  unittest: "^0.11.0" ----> hangs when any
dependency_overrides:
  # to get polymer, core_elements paper_elements to coexist with bwu_fontawesome_iconset_svg
  core_elements: "^0.7.0"
  paper_elements: "^0.7.0"
  polymer: "^0.16.0"
transformers:

• polymer:
      entry_points: [web/index.html]

[nex3]

Your locally-hosted packages may be relevant here. Without them (and changing the "unittest" dependency to "any"), I get the following error quickly:

Incompatible version constraints on matcher:

• quiver 0.21.3 depends on version >=0.10.0 <0.12.0
• test 0.12.0 depends on version >=0.12.0 <0.12.1

...although I'm not sure why adding a looser constraint produces the error.

[DartBot]

This comment was originally written by @rbishop-bah

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I believe the additional transitive dependencies from the local packages would be:

  browser_detect: "^1.0.3"
  color_picker: "^1.1.4"
  collection: "^1.1.0"
  intl: "^0.12.1"
  logging: ">=0.9.3 <0.11.0"
  meta: "^0.8.8"
dev_dependencies:
  benchmark_harness: "^1.0.4"
  browser: "^0.10.0"

[nex3]

It still fails quickly for me.

Don't worry about it too much, we've got other pathological pubspecs we can look at.

[DartBot]

This issue has been moved to dart-lang/pub#14.