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https://issues.apache.org/jira/browse/TINKERPOP-2912?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yang Xia updated TINKERPOP-2912:
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Priority: Critical (was: Minor)
> Improve error message for addE() when traverser is incorrect
> ------------------------------------------------------------
>
> Key: TINKERPOP-2912
> URL: https://issues.apache.org/jira/browse/TINKERPOP-2912
> Project: TinkerPop
> Issue Type: Improvement
> Components: process
> Affects Versions: 3.5.5
> Reporter: Stephen Mallette
> Priority: Critical
>
> For this:
> {code}
> gremlin> g.addV('A').as('a').addE('self').addE('self2').to('a')
> addE(self2) could not find a Vertex for from() - encountered: TinkerEdge
> Type ':help' or ':h' for help.
> Display stack trace? [yN]n
> {code}
> The traverser for the second {{addE('self2')}} is not a {{Vertex}}` - it is
> the previously added {{Edge}} of {{addE('self')}}. Since `from()` is not
> provided for the second {{addE('self2')}} it uses the current traverser and
> we get the exception shown. The exception is a bit confusing for those who
> don't realize what it means. Change the exception to: "addE(self2) could not
> find a Vertex specified for from() - a TinkerEdge was specified instead" - or
> perhaps a better message?
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