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https://issues.apache.org/jira/browse/BEAM-7970?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daniel Oliveira reopened BEAM-7970:
-----------------------------------
Old explanation I wrote is unclear, and also I found a way to actually handle
this bug, so I'm reopening this.
> Regenerate Go SDK proto files in correct version
> ------------------------------------------------
>
> Key: BEAM-7970
> URL: https://issues.apache.org/jira/browse/BEAM-7970
> Project: Beam
> Issue Type: Bug
> Components: sdk-go
> Reporter: Daniel Oliveira
> Assignee: Daniel Oliveira
> Priority: Major
> Fix For: Not applicable
>
> Time Spent: 1h 20m
> Remaining Estimate: 0h
>
> Generated proto files in the Go SDK currently include this bit:
> {{// This is a compile-time assertion to ensure that this generated file}}
> {{// is compatible with the proto package it is being compiled against.}}
> {{// A compilation error at this line likely means your copy of the}}
> {{// proto package needs to be updated.}}
> {{const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package}}
>
> This indicates that the protos are being generated as proto v2 for whatever
> reason. Most likely, as mentioned by this post with someone with a similar
> issue, because the proto generation binary needs to be rebuilt before
> generating the files again:
> [https://github.com/golang/protobuf/issues/449#issuecomment-340884839]
> This hasn't caused any errors so far, but might eventually cause errors if we
> hit version differences between the v2 and v3 protos.
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