如何解决使用 mvn 时出现依赖警告和缺少依赖
首先我收到一些警告。
[WARNING] Expected all dependencies to require Scala version: 2.10.6
[WARNING] com.twitter:chill_2.10:0.8.0 requires scala version: 2.10.5
[WARNING] Multiple versions of scala libraries detected!
然后是一些错误。
[ERROR] error: error while loading package,Missing dependency 'object java.lang.Object in compiler mirror',required by /home/joey/.m2/repository/org/scala-lang/scala-library/2.10.6/scala-library-2.10.6.jar(scala/package.class)
[ERROR] error: error while loading package,required by /home/joey/.m2/repository/org/scala-lang/scala-library/2.10.6/scala-library-2.10.6.jar(scala/runtime/package.class)
[ERROR] error: scala.reflect.internal.MissingRequirementError: object java.lang.Object in compiler mirror not found.
[ERROR] at scala.reflect.internal.MissingRequirementError$.signal(MissingRequirementError.scala:16)
[ERROR] at scala.reflect.internal.MissingRequirementError$.notFound(MissingRequirementError.scala:17)
我假设这都是相关的,但我不确定。我在 pom.xml 中没有看到这种依赖关系。我将包括所有内容以确保我没有遗漏任何内容。
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.bosch.us.dm.test</groupId>
<artifactId>isbn-encoder</artifactId>
<version>0.0.1-SNAPSHOT</version>
<properties>
<spark.version>2.1.1</spark.version>
<scala.dep.version>2.10</scala.dep.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-core_${scala.dep.version}</artifactId>
<version>${spark.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-sql_${scala.dep.version}</artifactId>
<version>${spark.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<!-- mixed scala/java compile -->
<plugin>
<groupId>org.scala-tools</groupId>
<artifactId>maven-scala-plugin</artifactId>
<version>2.15.2</version>
<executions>
<execution>
<id>compile</id>
<goals>
<goal>compile</goal>
</goals>
<phase>compile</phase>
</execution>
<execution>
<id>test-compile</id>
<goals>
<goal>testCompile</goal>
</goals>
<phase>test-compile</phase>
</execution>
<execution>
<phase>process-resources</phase>
<goals>
<goal>compile</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.6.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
我没有看到任何地方可以硬编码我在错误中看到的依赖版本。
Stackexchange 不喜欢主要是代码的问题,但老实说我不知道还能写什么,因为我是 mvn 和 scala 的新手。
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