Hi, your error matches what I see when I forget to import
import org.apache.flink.api.scala._ Could you please double-check and if you did that post a (minimal) example? Best, Arvid On Tue, Jun 23, 2020 at 3:42 AM 王宇 <yuwang0...@gmail.com> wrote: > Hi， all > some error occurred when I run flink in minicluster, > flink-version:1.11、scala-version:2.12.0. > > Error:(33, 41) could not find implicit value for evidence parameter of > type org.apache.flink.api.common.typeinfo.TypeInformation[(Int, String)] > val solutionInput = env.fromElements((1, "1")) > Error:(33, 41) not enough arguments for method fromElements: (implicit > evidence$14: scala.reflect.ClassTag[(Int, String)], implicit evidence$15: > org.apache.flink.api.common.typeinfo.TypeInformation[(Int, > String)])org.apache.flink.api.scala.DataSet[(Int, String)]. > Unspecified value parameter evidence$15. > val solutionInput = env.fromElements((1, "1")) > Error:(34, 40) could not find implicit value for evidence parameter of > type org.apache.flink.api.common.typeinfo.TypeInformation[(Int, String)] > val worksetInput = env.fromElements((2, "2")) > Error:(34, 40) not enough arguments for method fromElements: (implicit > evidence$14: scala.reflect.ClassTag[(Int, String)], implicit evidence$15: > org.apache.flink.api.common.typeinfo.TypeInformation[(Int, > String)])org.apache.flink.api.scala.DataSet[(Int, String)]. > Unspecified value parameter evidence$15. > val worksetInput = env.fromElements((2, "2")) > Error:(47, 41) could not find implicit value for evidence parameter of > type org.apache.flink.api.common.typeinfo.TypeInformation[(Int, String)] > val solutionInput = env.fromElements((1, "1")) > > have tried > https://ci.apache.org/projects/flink/flink-docs-release-1.10/dev/types_serialization.html#type-information-in-the-scala-api > > > thanks > -- Arvid Heise | Senior Java Developer <https://www.ververica.com/> Follow us @VervericaData -- Join Flink Forward <https://flink-forward.org/> - The Apache Flink Conference Stream Processing | Event Driven | Real Time -- Ververica GmbH | Invalidenstrasse 115, 10115 Berlin, Germany -- Ververica GmbH Registered at Amtsgericht Charlottenburg: HRB 158244 B Managing Directors: Timothy Alexander Steinert, Yip Park Tung Jason, Ji (Toni) Cheng
