遇到的问题----新建maven项目ArtifactTransferException 和Execution default-testResources of goal

第一种错误:

ArtifactTransferException: Failure to transfer com.google.collections:google-collections:jar:1.0 from http://repo1.maven.org/maven2 was 
 cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced. 
 Original error: Could not transfer artifact com.google.collections:google-collections:jar:1.0 from/to central (http://repo1.maven.org/maven2): 
 No response received after 60000

第二种错误:

 Execution default-testResources of goal org.apache.maven.plugins:maven-resources-plugin:2.4.3:testResources failed: Unable to load 
the mojo 'testResources' in the plugin 'org.apache.maven.plugins:maven-resources-plugin:2.4.3'. A required class is missing: Lorg/sonatype/