nknown lifecycle phase “–Dmaven.test.skip=true”. You must specify a valid lifecycle phase or a goal in the format
<plugin-prefix>:<goal> or <plugin-group-id>:<plugin-artifact-id>[:<plugin-version>]:<goal>.Available lifecycle phases are: validate, initialize, generate-sources, process-sources, generate-resources, process-resources, compile, process-classes, generate-test-sources, process-test-sources, generate-test-resources, process-test-resources, test-compile, process-test-classes, test, prepare-package, package, pre-integration-test, integration-test, post-integration-test, verify, install, deploy, pre-clean, clean, post-clean, pre-site, site, post-site, site-deploy. -> [Help 1]
解决办法：
使用这条命令
$mvnArgs1 ="mvn test -X -Dmaven.test.skip=true".replace('-D','`-D')
Invoke-Expression $mvnArgs1