After you create a new maven, configure the Pom.xml file to import Spark's jar package with a red exclamation mark

It is also possible to consult a lot of relevant data, such as configuring Tomcat, setting up the JDK, and so on before really solving the red exclamation point problem. However, the final solution is the reason why the jar package does not have a result import.

Configure the Pom.xml file to automatically import spark jar packages by creating a MAVEN project
Problems displays the error message as follows:

Error message 1:description Resource Path location Type
Archive for Required library: ' e:/java/apache-maven-3.0.4-bin/apache-maven-3.0.4/org/spark-project/akka/ Akka-remote_2.10/2.3.4-spark/akka-remote_2.10-2.3.4-spark.jar ' in project ' HelloWorld2 ' cannot be read or was not a valid Z IP file HelloWorld2 Build Path build path problem
Error message 2:description Resource Path location Type
The project cannot be built until build path errors is resolved helloworld2 Unknown Java problem

From the error message, it may be that the path is out of the question
After the introduction of the doctrine, I learned that the problem is the JAR package import
cause of error:
the Maven plugin did not successfully download the associated jar package
Solution:
Manually import the required jar packages yourself
Here's where Spark's jar bag is.
The screenshot shows:

Such as:
All I need is Spark's relevant jar package.
The configuration information added by the configuration file Pom.xml is as follows:

<dependency>

            <groupId>org.apache.spark</groupId>

            <artifactid>spark-core_2.10 </artifactId>

            <version>1.6.2</version>

        </dependency>

        <dependency>

        <groupId>org.apache.spark</groupId>

        <artifactId>spark-sql_2.10</artifactId>

        <version>1.6.2</version>

        </dependency>
        <dependency>

            <groupId> org.apache.hadoop</groupid>

            <artifactId>hadoop-client</artifactId>

            <version> 2.6.0</version>

Under MAVEN's library file, mine is .... \apache-maven-3.0.4\maven-dependencies\org\apache\, create a new Spark folder
So the spark 1.6.2 corresponding jar package is manually added to the \org\apache\spark, and the red exclamation mark can be resolved by re-refreshing the configuration file.