Could not resolve dependencies in scala - scala

Question

I'm having a real hard time resolving this error.
[INFO] Scanning for projects...
[INFO]
[INFO] -----------------< com.bosch.us.dm.test:isbn-encoder >------------------
[INFO] Building isbn-encoder 0.0.1-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
Downloading from central: https://repo.maven.apache.org/maven2/org/apache/spark/spark-core_2.1/2.1.1/spark-core_2.1-2.1.1.pom
[WARNING] The POM for org.apache.spark:spark-core_2.1:jar:2.1.1 is missing, no dependency information available
Downloading from central: https://repo.maven.apache.org/maven2/org/apache/spark/spark-sql_2.1/2.1.1/spark-sql_2.1-2.1.1.pom
[WARNING] The POM for org.apache.spark:spark-sql_2.1:jar:2.1.1 is missing, no dependency information available
Downloading from central: https://repo.maven.apache.org/maven2/org/apache/spark/spark-core_2.1/2.1.1/spark-core_2.1-2.1.1.jar
Downloading from central: https://repo.maven.apache.org/maven2/org/apache/spark/spark-sql_2.1/2.1.1/spark-sql_2.1-2.1.1.jar
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.081 s
[INFO] Finished at: 2021-04-17T20:22:31-07:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal on project isbn-encoder: Could not resolve dependencies for project com.bosch.us.dm.test:isbn-encoder:jar:0.0.1-SNAPSHOT: The following artifacts could not be resolved: org.apache.spark:spark-core_2.1:jar:2.1.1, org.apache.spark:spark-sql_2.1:jar:2.1.1: Could not find artifact org.apache.spark:spark-core_2.1:jar:2.1.1 in central (https://repo.maven.apache.org/maven2) -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException
I'm using maven to compile. I've tried changing scala maven plugin version but that doesn't seem to help. I don't understand the pom.xml file very well so it could very well be the source of my problem. The pom.xml looks like this
<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>2.1</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>net.alchim31.maven</groupId>
<artifactId>scala-maven-plugin</artifactId>
<version>3.3.3</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>
</project>
I've read some sources suggesting to delete jar files but I'm not sure where those would be located.