sts导入springboot项目。
这时候产生了一个错误。
Execution default-resources of goal org.apache.maven.plugins:maven-resources-plugin:3.1.0:resources failed: An API incompatibility was encountered while executing org.apache.maven.plugins:maven-resources-plugin:3.1.0:resources: java.lang.LinkageError: loader constraint violation: when resolving interface method "org.sonatype.plexus.build.incremental.BuildContext.newScanner(Ljava/io/File;Z)Lorg/codehaus/plexus/util/Scanner;" the class loader (instance of org/codehaus/plexus/classworlds/realm/ClassRealm) of the current class, org/apache/maven/shared/filtering/DefaultMavenResourcesFiltering, and the class loader (instance of org/eclipse/osgi/internal/loader/EquinoxClassLoader) for the method's defining class, org/sonatype/plexus/build/incremental/BuildContext, have different Class objects for the type org/codehaus/plexus/util/Scanner used in the signature
解决方法：
在项目的pom.xml中手动加入以下依赖：
<dependency>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>2.6</version>
</dependency>并选中项目，执行maven install ，在下载完相关文件后，错误消失。如果有需要，再执行一下maven -> update project..