On Oozie server, install the necessary RPMs.
yum install oozie extjs-2.2-1
yum install oozie oozie-client
Add the ExtJS library to the Oozie application.
cd /usr/lib/oozie mkdir libext cp /usr/share/HDP-oozie/ext-2.2.zip libext/
Add LZO JAR files.
cp /usr/lib/hadoop/lib/hadoop-lzo-0.5.0.jar libext/