将当前项目转换为Maven的问题

Question

我将我当前的项目转换为Maven项目。点击“转换为Maven”后，我得到了以下错误

Errors occurred during the build.
Errors running builder 'Maven Project Builder' on project 'ActiTime'.
Could not calculate build plan: Plugin org.apache.maven.plugins:maven-resources-plugin:2.5 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-resources-plugin:jar:2.5
Plugin org.apache.maven.plugins:maven-resources-plugin:2.5 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-resources-plugin:jar:2.5
Could not calculate build plan: Plugin org.apache.maven.plugins:maven-resources-plugin:2.5 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-resources-plugin:jar:2.5
Plugin org.apache.maven.plugins:maven-resources-plugin:2.5 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-resources-plugin:jar:2.5

我添加了 POI，POI-ooxml，Selenium，testNg Dependencies 但现在我正在

ArtifactDescriptorException: Failed to read artifact descriptor for org.seleniumhq.selenium:selenium-java:jar:2.48.2: ArtifactResolutionException: Could not transfer artifact org.seleniumhq.selenium:selenium-java:pom:2.48.2 from/to central (http://repo.maven.apache.org/maven2): connection timed out to http://repo.maven.apache.org/maven2/org/seleniumhq/selenium/selenium-java/2.48.2/selenium-java-2.48.2.pom

任何人都可以看一下这个 我使用Eclipse Keepler作为ID和JDK 1.7

下面是截图POM.XML和错误。请参考这个