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Misleading error message and lots of solver churn when there's no solution #10665

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DartBot opened this issue May 15, 2013 · 8 comments
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Misleading error message and lots of solver churn when there's no solution #10665

DartBot opened this issue May 15, 2013 · 8 comments
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@munificent
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M5

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@DartBot
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DartBot commented May 15, 2013

This issue was originally filed by douglas....@gmail.com

First, please accept my apologies for submitting this during Google IO week.

What steps will reproduce the problem?

  1. Updated dart editor to 22659
  2. Ran pub install and received error in summary and request to run pub --trace 'install' in the output

What is the expected output? What do you see instead?

Expected output is a message that dependencies installed. I instead see the web_ui version error.

What version of the product are you using? On what operating system?
Dart VM version: 0.5.7.3_r22659 (Mon May 13 20:57:34 2013) on "macos_x64"
Mac OS X ver 10.7.5

Please provide any additional information below.

Please see my attached pubspec.yaml and the output from pub --trace 'install'.

Attachments:
[pub install trace 5-14-2013.txt](https://storage.googleapis.com/google-code-attachments/dart/issue-10665/comment-0/pub install trace 5-14-2013.txt) (104.30 KB)
pubspec.yaml (278 Bytes)
@dgrove
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dgrove commented May 15, 2013

cc @nex3.
cc @munificent.
Added Area-Pub, Triaged labels.

@nex3
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nex3 commented May 15, 2013

It looks like every existing version of webui_tasks has a version constraint on web_ui < 0.4.8, which is causing the version resolution to fail. The information presented in the error output is misleading, though... it indicates that the derived version constraint is ">=0.4.8 <0.5.0", when in fact this is in conflict with the webui_tasks constraint.

Bob, this looks to be a version solver issue. Can you look into it? It would also be good to see if we can reduce the amount of solver churn in cases like this.

Set owner to @munificent.
Added this to the M5 milestone.

@dgrove
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dgrove commented May 15, 2013

Changed the title to: "Mislead error message and lots of solver churn when there's no solution".

@dgrove
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dgrove commented May 15, 2013

Changed the title to: "Misleading error message and lots of solver churn when there's no solution".

@munificent
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Added Accepted label.

@munificent
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Added Started label.

@munificent
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Added Fixed label.

@DartBot DartBot added this to the M5 milestone May 23, 2013
@DartBot DartBot mentioned this issue Jun 5, 2015
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DartBot commented Jun 5, 2015

This issue has been moved to dart-lang/pub#548.

This issue was closed.
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