gRPC的IntelliJ编译错误

Question

IntelliJ tells this compiling error, when I build a scala project to test gRPC APIs with Gatling.

IntelliJ:

IntelliJ IDEA 2017.3.5 (Community Edition)
Build #IC-173.4674.33, built on March 6, 2018
JRE: 1.8.0_152-release-1024-b15 amd64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
Windows 10 10.0

Scala Plugin

Version: 2017.3.15

The project depends on another project(API). The latter one uses the following pom file (gRPC).

<dependency>
    <groupId>io.grpc</groupId>
    <artifactId>grpc-netty</artifactId>
    <version>1.7.0</version>
</dependency>
<dependency>
    <groupId>io.grpc</groupId>
    <artifactId>grpc-protobuf</artifactId>
    <version>1.7.0</version>
</dependency>
<dependency>
    <groupId>io.grpc</groupId>
    <artifactId>grpc-stub</artifactId>
    <version>1.7.0</version>
</dependency>

The code:

  val channel = ManagedChannelBuilder
      .forAddress("...", 8088)
      .usePlaintext(true)
      .build()   // <---- IntelliJ says "Error:..." here

Error:

Error:(10, 161) value build is not a member of ?0
  val channel = ManagedChannelBuilder.forAddress("...", 8088).usePlaintext(true).build()

I cannot see anything wrong with the code. Is it a bug of IntelliJ?

Any help will be appreciated.

Answer 1

That issue was a bug in Scala that was fixed in Scala 2.11 and later. See grpc-java issue 2813 for discussion.