I get error cannot read Pom cal when I run jenkinsfile even though Jenkins has permission and can open it

Question

I have a Jenkins pipeline job. When I run the job I get an error “ cannot read Pom.xml file” even though I have given Jenkins permission and established that it can open it from command line. When I look in my work space I can see the Pom.xml file in the project folder where it was when I unzipped my application zip file in GitHub. When I run man clean package from cli it builds and I get my src, settings, target files and my .war files. But Jenkins job never gets past Pom file error.