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https://issues.apache.org/jira/browse/BEAM-12960?focusedWorklogId=663723&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-663723
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ASF GitHub Bot logged work on BEAM-12960:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 11/Oct/21 18:59
Start Date: 11/Oct/21 18:59
Worklog Time Spent: 10m
Work Description: jrmccluskey commented on pull request #15703:
URL: https://github.com/apache/beam/pull/15703#issuecomment-940364623
Added
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Issue Time Tracking
-------------------
Worklog Id: (was: 663723)
Time Spent: 40m (was: 0.5h)
> Error unclear for structural DoFn
> ---------------------------------
>
> Key: BEAM-12960
> URL: https://issues.apache.org/jira/browse/BEAM-12960
> Project: Beam
> Issue Type: Bug
> Components: sdk-go
> Reporter: Andrew Haselgrove
> Assignee: Jack McCluskey
> Priority: P2
> Time Spent: 40m
> Remaining Estimate: 0h
>
> I recently received the following error for my structural DoFn: "failed to
> find ProcessElement method". However, I had implemented ProcessElement - the
> error was that I failed to take the address of the DoFn struct as the
> parameter for the ParDo.
> I think this error could be much clearer. Taking a look at the
> implementation, I see that it somewhat is:
> [https://github.com/apache/beam/blob/master/sdks/go/pkg/beam/core/graph/fn.go#L154.]
> However, this error message doesn't match the implementation, which also
> accepts the struct as-is. I assume the struct is accepted here for other uses
> of `NewFn` (eg. `RegisterFunction`), as from my example above, for the
> `ParDo` case, this just goes on to surface a less-clear error deeper in the
> call chain.
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