Maven build failed all of a sudden. Hi all,I have been building my AEM 6.0 dev site for years without any related issues as the following. I always run the build command as:mvn -Pinstall -Pinstall-publish clean installIt basically builds the package to the author and publisher the same time. It has been working since the morning but all of a sudden it stopped working. The error is: [INFO] --- content-package-maven-plugin:0.0.20:install (install-content-package) @ base-content ---[INFO] Installing base-content (/Users/kevintan/workspace/aem60/aem-accessibility/aem/content/target/base-content-4.4.1-AS-SNAPSHOT.zip) to http://123.45.67.89:4502/crx/packmgr/service.jsp[ERROR] Request failed: com.day.jcr.vault.packaging.PackageException: org.apache.jackrabbit.vault.packaging.PackageException: javax.jcr.RepositoryException: OakName0001: Invalid namespace prefix([, stFNT, pmtm, creatorAtom, def, adhocwf, mediapro, Image, xmpPLUS, Item, dex, xml, xmp, viewerpreset, prism, crss, GIMP, pdfaSchema, xmpDM, stArea, fpoinfo, xmpMM