"Unknown lifecycle phase" Exception when executeing mvn exec:java command

[jxzhangxing]

Ater I succeed to run
mvn clean install
I kept getting these errors when I execute
mvn exec:java -Dexec.mainClass="migrator.module.client.MigrateAccounts" -pl datamigrator-module

This is my version info:

Does anyone could help with this issue?
Thanks in advance.

[jxzhangxing]

I found out that when using windows, we should add double quote for "exec.mainClass" and "exec.args"
thanks to this post.
the command should be like this:
mvn exec:java -D"exec.mainClass"="migrator.module.client.ValidateExample" -D"exec.args"="Account" -pl datamigrator-module