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From Till Rohrmann <trohrm...@apache.org>
Subject Re: Dependency on non-existent org.scalamacros:quasiquotes_2.11:<any version>
Date Mon, 18 Jan 2016 08:57:13 GMT
This might be related to the problem mentioned in
https://issues.apache.org/jira/browse/FLINK-3241 and
http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/flink-1-0-SNAPSHOT-scala-2-11-compilation-error-td4303.html
.

Cheers,
Till

On Sun, Jan 17, 2016 at 6:26 PM, Prez Cannady <revprez@correlatesystems.com>
wrote:

> I concur.  Already had "import org.apache.flink.streaming.api.scala._”,
> and just tried adding "import org.apache.flink.api.scala._”.  Same issue.
>
>
>
> Prez Cannady
> p: 617 500 3378
> e: revprez@opencorrelate.org <mailto:revprez@opencorrelate.org>
> GH: https://github.com/opencorrelate <https://github.com/opencorrelate>
> LI: https://www.linkedin.com/in/revprez <
> https://www.linkedin.com/in/revprez>
>
>
>
>
>
>
>
>
>
> > On Jan 17, 2016, at 8:59 AM, Aljoscha Krettek <aljoscha@apache.org>
> wrote:
> >
> > Hi,
> > I think it’s more complicated than a missing import statement (the code
> has the correct import statement). I’ll look into it.
> >
> > Cheers,
> > Aljoscha
> >> On 17 Jan 2016, at 13:32, Stephan Ewen <sewen@apache.org> wrote:
> >>
> >> Hi!
> >>
> >> I think this no Scala version issue, you probably miss an import
> statement:
> >>
> >> "import org.apache.flink.streaming.api.scala._" or "import
> >> org.apache.flink.api.scala._"
> >>
> >> See also here:
> >>
> http://flink.apache.org/faq.html#in-scala-api-i-get-an-error-about-implicit-values-and-evidence-parameters
> >>
> >> Greetings,
> >> Stephan
> >>
> >> On Sat, Jan 16, 2016 at 9:09 PM, Prez Cannady <
> revprez@opencorrelate.org>
> >> wrote:
> >>
> >>> Attempting to get settled with Flink under Scala 2.11, but running into
> >>> some odd issues with macro expansion in a project that depends on
> >>> flink-scala_2.11 and flink-runtime_211.
> >>>
> >>> I’ve instrumented the SocketStreamWordCount quick start <
> >>> https://github.com/OCExercise/wordcount-processing> to test this
> issue.
> >>> It depends on Flink 1.0-SNAPSHOT, so you can test against a local
> build of
> >>> Flink for 2.11.
> >>>
> >>> Steps taken
> >>>
> >>> Cloned source and checked out release-0.1
> >>> Ran tools/change-scala-version.sh 2.11
> >>> Ran mvn clean install -Dscala.version=2.11.4
> -Dscala.binary.version=2.11
> >>> -Dakka.version=2.4.1 -DskipTests=true at Flink root; build succeeds
> >>> Ran my spring-booted downstream project’s build and boot run.
> >>> Expected result
> >>>
> >>> Success
> >>>
> >>> Actual result
> >>>
> >>> During compilation, I get the following error:
> >>>
> >>> [ERROR]
> >>>
> /Users/revprez/dev/exercise/systems/jvm/flink/wordcount-processing/src/main/scala/org/opencorrelate/jvm/scala/SocketTextStreamWordCount.scala:73:
> >>> error: could not find implicit value for evidence parameter of type
> >>> org.apache.flink.api.common.typeinfo.TypeInformation[String]
> >>> [ERROR]         val counts = text.flatMap { _.toLowerCase.split("\\W+")
> >>> filter { _.nonEmpty } }
> >>> [ERROR]                                   ^
> >>> [ERROR]
> >>>
> /Users/revprez/dev/exercise/systems/jvm/flink/wordcount-processing/src/main/scala/org/opencorrelate/jvm/scala/WordCount.scala:40:
> >>> error: can't expand macros compiled by previous versions of Scala
> >>> [ERROR]     val text = env.fromElements("To be, or not to be,--that is
> the
> >>> question:--",
> >>>
> >>>
> >>> Discussion
> >>>
> >>> I’m not sure how the Maven build actually succeeded, as there doesn’t
> seem
> >>> to be any quasiquotes_2.11 under org.scalamacros <
> >>> http://central.maven.org/maven2/org/scalamacros/> of any version in
> the
> >>> public repos, nor in the four vendor repos configured in flink-parent’s
> >>> pom.xml. Unless I’m missing something,
> >>>
> >>>           <dependencies>
> >>>               <dependency>
> >>>                   <groupId>org.scalamacros</groupId>
> >>>
> >>> <artifactId>quasiquotes_${scala.binary.version}</artifactId>
> >>>                   <version>${scala.macros.version}</version>
> >>>               </dependency>
> >>>           </dependencies>
> >>>
> >>>
> >>> I recall an earlier discussion about issues with 2.10 stuff polluting
> the
> >>> 2.11 build. Not sure if this is related–I’m able to get through
> everything
> >>> I’ve identified up to this point by simply overriding properties in
> >>> flunk-parent with command line arguments.
> >>>
> >>> Also not sure what next steps to take. Don’t know enough about Scala
> >>> Macros to know if substituting, say,
> org.scalameta:quasiquotes_2.11:0.0.4
> >>> is a viable option (actually tried it, seems to be more trouble than
> it’s
> >>> worth).
> >>>
> >>> If anyone has any ideas, I’m more than willing to try thing—Flink’s
on
> our
> >>> critical path and if we can get it operational under 2.11 then we’er
> golden.
> >>>
> >>>
> >>>
> >>> Prez Cannady
> >>> p: 617 500 3378
> >>> e: revprez@opencorrelate.org <mailto:revprez@opencorrelate.org>
> >>> GH: https://github.com/opencorrelate <https://github.com/opencorrelate
> >
> >>> LI: https://www.linkedin.com/in/revprez <
> >>> https://www.linkedin.com/in/revprez>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >
>
>

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