Oozie workflow file cannot see start step, error E0701

Question

I am running an Oozie job with a workflow.xml file which begins:

<!-- <workflow-app name="sample-wf" xmlns="uri:oozie:workflow:0.1"> -->

<start to="imagesCreateSequenceFile"/>  

<action name="imagesCreateSequenceFile">
<map-reduce>
 <job-tracker>${jobTracker}</job-tracker>
     <name-node>${nameNode}</name-node>

This gives me the following error:

Error: E0701 : E0701: XML schema error, cvc-elt.1.a: Cannot find the declaration of element 'start'.

I am pretty sure my job is pointing to the correct workflow.xml file on hdfs (so this does not fix it).

Any help is appreciated in working out why my job cannot see 'start'. TIA!

PS I have tried a different workflow.xml and it gives the same error.

Answer 1

I needed to remove the comment marks around the first line, i.e. make it:

<workflow-app name="sample-wf" xmlns="uri:oozie:workflow:0.1">