Per @jmchilton comment, rewrite as yml

config/error_report.yml.sample

@@ -0,0 +1,34 @@
+# Each element in this file corresponds to a destination for an error
+# report.
+
+# If you supply the parameter ``user_submission``, and set it to True,
+# this error plugin will only be activated when the user uses the bug
+# report submission interface. Otherwise, it will be triggered without
+# any user interaction (e.g. historical behaviour of sentry plugin)
+
+# If your plugin is ``user_submission=True``, then supplying
+# ``verbose=True`` will cause the plugin to display a message to the end
+# user. E.g. the email plugin simply states "Your error report has been
+# sent", or the JSON plugin informs the user "Wrote error report to ..."
+
+# The plugins below are listed with their default values of
+# verbose/user_submission, but those are not necessary to provide.
+
+# The default Email bug reporter. By default, the standard
+# configuration is taken from your galaxy.ini
+- type: email
+  verbose: true
+  user_submission: true
+
+# Example JSON bug reporter implementation. This just writes the bug
+# report as a JSON file to a specified directory and serves as an
+# example for others to extend.
+# - type: json
+#   verbose: true
+#   user_submission: true
+#   directory: /tmp/reports/
+
+# Submit error reports to sentry. If a sentry_dsn is configured in your
+# galaxy.ini, then Galaxy will submit the job error to Sentry.
+- name: sentry
+  user_submission: false

lib/galaxy/config.py

@@ -43,7 +43,7 @@
     job_config_file=['config/job_conf.xml', 'job_conf.xml'],
     tool_destinations_config_file=['config/tool_destinations.yml', 'config/tool_destinations.yml.sample'],
     job_metrics_config_file=['config/job_metrics_conf.xml', 'job_metrics_conf.xml', 'config/job_metrics_conf.xml.sample'],
-    error_report_file=['config/error_report.xml', 'error_report.xml', 'config/error_report.xml.sample'],
+    error_report_file=['config/error_report.xml', 'config/error_report.xml.sample'],
     dependency_resolvers_config_file=['config/dependency_resolvers_conf.xml', 'dependency_resolvers_conf.xml'],
     job_resource_params_file=['config/job_resource_params_conf.xml', 'job_resource_params_conf.xml'],
     migrated_tools_config=['migrated_tools_conf.xml', 'config/migrated_tools_conf.xml'],