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x/tools/go/packages: Unexpected package creation during export data loading #45218

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gordonklaus opened this issue Mar 24, 2021 · 2 comments
Open

x/tools/go/packages: Unexpected package creation during export data loading #45218

gordonklaus opened this issue Mar 24, 2021 · 2 comments
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NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. Tools This label describes issues relating to any tools in the x/tools repository.
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Unreleased

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@gordonklaus
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What version of Go are you using (go version)?

go version go1.16.2 darwin/amd64

Does this issue reproduce with the latest release?

Yes. Both on v0.1.0 and on master.

What did you do?

Load types for a package that has gc export data available. runtime is such a package on my system:

packages.Load(&packages.Config{Mode: packages.NeedTypes}, "runtime")

https://play.golang.org/p/ObXs_fKb0A2

What did you expect to see?

Nothing, success.

What did you see instead?

A fatal error is logged: Unexpected package creation during export data loading

I debugged the error and found a workaround: Include packages.NeedImports in Config.Mode.
@gopherbot gopherbot added the Tools This label describes issues relating to any tools in the x/tools repository. label Mar 24, 2021
@gopherbot gopherbot added this to the Unreleased milestone Mar 24, 2021
@cagedmantis cagedmantis added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label Mar 31, 2021
@cagedmantis
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/cc @matloob

@AlekSi
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AlekSi commented Jan 15, 2022

Probably related to #45584

@AlekSi AlekSi mentioned this issue Mar 17, 2022
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@ttys3 ttys3 mentioned this issue Aug 25, 2022
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bobg added a commit to bobg/modver that referenced this issue Sep 14, 2022
@bobg
Upgrade golang.org/x/tools after encountering golang/go#45218
56512db
@magodo magodo mentioned this issue Dec 28, 2022
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