Nodes not displaying, console shows xml parsing error - rundeck

Question

I'm having troubles viewing my nodes in a fresh rundeck install. resources.xml
<?xml version="1.0" encoding="UTF-8"?>
<project>
<node name="fooweb01"
description="fooweb01" tags="foo,us-east,webserver"
osFamily="unix" osName="Linux"
hostname="fooweb01" username="user"
/>
<node name="fooweb02"
description="fooweb02" tags="foo,us-east,webserver"
osFamily="unix" osName="Linux"
hostname="fooweb02" username="user"
/>
<node name="fooweb03"
description="fooweb03" tags="foo,us-east,webserver"
osFamily="unix" osName="Linux"
hostname="fooweb03" username="user"
/>
<node name="fooweb04"
description="fooweb04" tags="foo,us-east,webserver"
osFamily="unix" osName="Linux"
hostname="fooweb04" username="user"
/>
<node name="foocorp01"
description="foocorp01" tags="foo,us-east,corporate"
osFamily="unix" osName="Linux"
hostname="foocorp01" username="user"
/>
<node name="foocorp02"
description="foocorp02" tags="foo,us-east,corporate"
osFamily="unix" osName="Linux"
hostname="foocorp02" username="user"
/>
<node name="foopartner01"
description="foopartner01" tags="foo,us-east,partner-api"
osFamily="unix" osName="Linux"
hostname="foopartner01" username="user"
/>
<node name="foodb01"
description="foodb01" tags="foo,us-east,cluster-node"
osFamily="unix" osName="Linux"
hostname="foodb01" username="user"
/>
<node name="foodb02"
description="foodb02" tags="foo,us-east,cluster-node"
osFamily="unix" osName="Linux"
hostname="foodb02" username="user"
/>
<node name="foodb03"
description="foodb03" tags="foo,us-east,cluster-node"
osFamily="unix" osName="Linux"
hostname="foodb03" username="user"
/>
<node name="foolb01"
description="foolb03" tags="foo,us-east,haproxy"
osFamily="unix" osName="Linux"
hostname="foolb03" username="user"
/>
<node name="foolb02"
description="foolb03" tags="foo,us-east,haproxy"
osFamily="unix" osName="Linux"
hostname="foolb03" username="user"
/>
<node name="foojobs01"
description="foojobs03" tags="foo,us-east,docker-services"
osFamily="unix" osName="Linux"
hostname="foojobs03" username="user"
/>
<node name="foomonitor"
description="Ops Host" tags="foo,us-east,monitor"
osFamily="unix" osName="Linux"
hostname="foomonitor" username="user"
/>
</project>
project.properties in the same folder
project.resources.file=/var/lib/rundeck/projects/cron_jobs/etc/resources.xml
resources.source.1.type=file
resources.source.1.config.file=/var/lib/rundeck/projects/cron_jobs/etc/resources.xml
resources.source.1.config.format=resourcexml
resources.source.1.config.requireFileExists=true
resources.source.1.config.includeServerNode=true
resources.source.1.config.generateFileAutomatically=true
project.resources.file=/var/lib/rundeck/projects/cron_jobs/etc/resources.xml was a recent test that didn't help. When i load project/cron_jobs/nodes in the browser console i see
XML Parsing Error: syntax error
Location: https://example.org/project/cron_jobs/nodes
Line Number 1: Column 1:
There are no errors in the logs, i have reimported the project each time i make a change to the file, which has not been frequent.
This is driving me crazy, looking for another pair of eyes. All other pages work fine.

Answer 1

Rundeck enumerates their model sources (for example: 1=your resources.xml file, 2=ansible inventory, 3=ec2 nodes, etc.) in your case, the first one is the resources.xml file.
Just delete the project.resources.file=/var/lib/rundeck/projects/cron_jobs/etc/resources.xml line and save.
I created a new project (on Rundeck 3.3.10), deleted the first model source (local), added your resources.xml file (which works like a charm) as first model source and the project.properties looks in the following way:
#Fri Mar 26 08:53:10 CLST 2021
#edit below
project.disable.executions=false
project.disable.schedule=false
project.execution.history.cleanup.batch=500
project.execution.history.cleanup.enabled=false
project.execution.history.cleanup.retention.days=60
project.execution.history.cleanup.retention.minimum=50
project.execution.history.cleanup.schedule=0 0 0 1/1 * ? *
project.jobs.gui.groupExpandLevel=1
project.name=ProjectEXAMPLE
project.nodeCache.enabled=true
project.nodeCache.firstLoadSynch=true
project.output.allowUnsanitized=false
project.ssh-authentication=privateKey
project.ssh-command-timeout=0
project.ssh-connect-timeout=0
project.ssh-keypath=/home/user/.ssh/id_rsa
resources.source.1.config.file=/path/to/your/resources.xml
resources.source.1.config.format=resourcexml
resources.source.1.config.generateFileAutomatically=true
resources.source.1.config.writeable=true
resources.source.1.type=file
service.FileCopier.default.provider=jsch-scp
service.NodeExecutor.default.provider=jsch-ssh
And the nodes on "Nodes" page.