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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, 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/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。我会包括整个事情，以确保我没有遗漏任何东西。

<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>

我看不到任何地方对我在错误中看到的依赖版本进行硬编码。

Stackexchange 不喜欢主要包含代码但老实说不知道还要写什么的问题，因为我是 mvn 和 scala 的新手。

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