Maven fails with classpath errors and recover when a new project is opened - maven

Question

I have the following pom.xml file:
http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<start-class>com.example.Main</start-class>
</properties>
<groupId>SpringProject</groupId>
<artifactId>SpringProject</artifactId>
<version>1.0-SNAPSHOT</version>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>3.0.2</version>
<configuration>
<archive>
<manifest>
<mainClass>com.phoneBook.Main</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>1.5.10.RELEASE</version>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.0.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j2</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
<version>1.2.2.RELEASE</version>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
As you can understand, it's a spring-boot application. When I run it, I get the error:
Elasticsearch “StatusLogger Log4j2 could not find a logging
implementation. Please add log4j-core to the classpath.”
and log4j2 doesn't act properly.
However, the solution that I found is to open a new project, copy all files, and then surprisingly everything works perfectly and this error doesn't show.
Yesterday, I had another problem that I also got an error for something with classpath and again opening a new Project and copying files solved it.
Do you know what can cause such errors and whether there is a more comfortable way to resolve it without opening a new project and copy files?