[ERROR] [ERROR] Could not find the selected project in the reactor: flink-java8 @
[ERROR] Could not find the selected project in the reactor: flink-java8 -> [Help 1]
org.apache.maven.MavenExecutionException: Could not find the selected project in the reactor: flink-java8
	at org.apache.maven.graph.DefaultGraphBuilder.trimSelectedProjects(DefaultGraphBuilder.java:173)
	at org.apache.maven.graph.DefaultGraphBuilder.reactorDependencyGraph(DefaultGraphBuilder.java:126)
	at org.apache.maven.graph.DefaultGraphBuilder.build(DefaultGraphBuilder.java:80)
	at org.apache.maven.DefaultMaven.buildGraph(DefaultMaven.java:511)
	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:221)
	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:194)
	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:107)
	at org.apache.maven.cli.MavenCli.execute(MavenCli.java:993)
	at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:345)
	at org.apache.maven.cli.MavenCli.main(MavenCli.java:191)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
	at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
	at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
	at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
[ERROR]
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MavenExecutionException