m2e プラグインで Eclipse Juno を使用しています。Java プロジェクトを Eclipse 経由で Maven プロジェクトに変換しました
プロジェクトを右クリック > メニュー構成に移動 > Maven プロジェクトに変換します。
そして、これらはエラーです：
Multiple annotations found at this line:
- Plugin execution not covered by lifecycle configuration: org.apache.maven.plugins:maven-compiler-
plugin:2.3.2:compile (execution: default-compile, phase: compile)
- Plugin execution not covered by lifecycle configuration: org.apache.maven.plugins:maven-compiler-
plugin:2.3.2:testCompile (execution: default-testCompile, phase: test-compile)
- CoreException: Could not get the value for parameter compilerId for plugin execution default-
compile: PluginResolutionException: Plugin org.apache.maven.plugins:maven-compiler-plugin:2.3.2 or one of
its dependencies could not be resolved: The following artifacts could not be resolved:
org.codehaus.plexus:plexus-compiler-manager:jar:1.8.1, org.codehaus.plexus:plexus-compiler-javac:jar:1.8.1:
Failure to transfer org.codehaus.plexus:plexus-compiler-manager:jar:1.8.1 from http://repo.maven.apache.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 org.codehaus.plexus:plexus-compiler-
manager:jar:1.8.1 from/to central (http://repo.maven.apache.org/maven2): connection timed out to http://
repo.maven.apache.org/maven2/org/codehaus/plexus/plexus-compiler-manager/1.8.1/plexus-compiler-
manager-1.8.1.jar
- CoreException: Could not get the value for parameter compilerId for plugin execution default-
testCompile: PluginResolutionException: Plugin org.apache.maven.plugins:maven-compiler-plugin:2.3.2 or one
of its dependencies could not be resolved: The following artifacts could not be resolved:
org.codehaus.plexus:plexus-compiler-manager:jar:1.8.1, org.codehaus.plexus:plexus-compiler-javac:jar:1.8.1:
Failure to transfer org.codehaus.plexus:plexus-compiler-manager:jar:1.8.1 from http://repo.maven.apache.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 org.codehaus.plexus:plexus-compiler-
manager:jar:1.8.1 from/to central (http://repo.maven.apache.org/maven2): connection timed out to http://
repo.maven.apache.org/maven2/org/codehaus/plexus/plexus-compiler-manager/1.8.1/plexus-compiler-
manager-1.8.1.jar
この問題を解決するには？助けてください。