Drupal 10 deprecation error details

Error details for

Class [redacted] extends deprecated class Symfony\Component\EventDispatcher\Event: since Symfony 4.3, use "Symfony\Contracts\EventDispatcher\Event" instead

Occurence count	Affected project count	Occurs in a top X project by usage	Category
309	170	50	Symfony API

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Top X by usage

Project	Top X by usage	Occurrences Sort ascending
stripe_webhooks 1.x-dev	10000	25
entity_sync 1.x-dev	10000	10
cas 1.x-dev	500	9
elasticsearch_connector 7.x-dev	500	6
collection 3.x-dev	10000	6
braintree_cashier 4.x-dev	10000	6
elasticsearch_helper 7.x-dev	10000	6
og 1.x-dev	10000	5
cms_content_sync 2.2.x-dev	10000	5
quantcdn 1.x-dev	10000	5
smsframework 2.x-dev	10000	4
user_email_verification 1.x-dev	10000	4
ckeditor_mentions 2.x-dev	10000	4
entity_activity 1.x-dev	10000	4
grid_layout 1.x-dev	10000	4
session_limit 2.x-dev	500	3
smart_ip 4.x-dev	1000	3
views_send 1.x-dev	10000	3
webform_double_opt_in 1.x-dev	10000	3
ww_publish 2.x-dev	10000	3
league_oauth_login 1.x-dev	10000	3
sm_appdashboard_apigee 2.0.3	10000	3
cas_account_link 2.0.x-dev	10000	3
dru_chat 1.0.x-dev	10000	3
saml 2.x-dev	10000	3
splio 2.0.3	10000	3
oml 1.x-dev	10000	3
wse 1.0.x-dev	10000	3
crop 2.x-dev	50	2
entity_share 3.x-dev	1000	2
akamai 4.x-dev	1000	2
gdpr 3.0.x-dev	10000	2
tealiumiq 1.x-dev	10000	2
rng 3.x-dev	10000	2
external_entities 2.x-dev	10000	2
ipless 2.x-dev	10000	2
rest_api_access_token 1.x-dev	10000	2
gathercontent 5.x-dev	10000	2
cas_server 1.x-dev	10000	2
pipeline 1.x-dev	10000	2
usage_data 2.0.x-dev	10000	2
jsonapi_user_resources 1.x-dev	10000	2
entity_reports 1.x-dev	10000	2
b24 1.x-dev	10000	2
moodle_rest 1.0.x-dev	10000	2
editorjs 2.x-dev	10000	2
search_api_redisearch 1.x-dev	10000	2
janrain_connect 4.x-dev	10000	2
hidden_tab 9.0.0	10000	2
post_api 2.x-dev	10000	2
epub_reader_framework 2.0.0-alpha5	10000	2
eventer 1.x-dev	10000	2
openam_api 2.0.1	10000	2
panels 4.x-dev	100	1
page_manager 4.x-dev	100	1
entity_clone 1.x-dev	200	1
csp 1.x-dev	500	1
stage_file_proxy 1.x-dev	500	1
social_media 1.x-dev	500	1
ga 1.x-dev	500	1
workbench_moderation 1.x-dev	500	1
permissions_by_term 3.1.19	500	1
date_recur 3.x-dev	1000	1
flippy 1.x-dev	1000	1
conflict 2.x-dev	1000	1
config_readonly 1.x-dev	1000	1
role_expire 2.x-dev	1000	1
yaml_content 1.x-dev	1000	1
config_devel 1.x-dev	1000	1
jwt 1.x-dev	1000	1
flysystem 2.0.x-dev	1000	1
entity_pager 2.0.x-dev	1000	1
config_distro 1.x-dev	1000	1
config_merge 1.x-dev	1000	1
scheduled_transitions 2.x-dev	10000	1
content_synchronizer 3.1.1	10000	1
stripe 1.x-dev	10000	1
entity_export_csv 1.x-dev	10000	1
forms_steps 1.x-dev	10000	1
menu_block_current_language 1.x-dev	10000	1
default_paragraphs 2.0.0-rc1	10000	1
examples 3.x-dev	10000	1
sfweb2lead_webform 5.x-dev	10000	1
jsonapi_search_api 1.x-dev	10000	1
cleaner 2.x-dev	10000	1
stripe_webform 1.x-dev	10000	1
transaction 1.x-dev	10000	1
pdb 1.x-dev	10000	1
webform_node_element 1.x-dev	10000	1
radioactivity 3.x-dev	10000	1
zoomapi 2.0.x-dev	10000	1
build_hooks 2.x-dev	10000	1
js_component 2.0.x-dev	10000	1
entity_import 1.x-dev	10000	1
single_page_site 2.x-dev	10000	1
smart_content 3.x-dev	10000	1
migration_tools 2.x-dev	10000	1
invite 2.0.x-dev	10000	1
mollie 2.2.x-dev	10000	1
amazon_sns 1.x-dev	10000	1
recurring_donation 2.x-dev	10000	1
permissionspolicy 1.0.x-dev	10000	1
stripe_api 2.x-dev	10000	1
api_ai_webhook 2.x-dev	10000	1
account_modal 1.x-dev	10000	1
auto_retina 1.3	10000	1
fft 2.3	10000	1
rocketship_core 6.x-dev	10000	1
cas_mock_server 1.x-dev	10000	1
tether_stats 1.x-dev	10000	1
fsa 2.5.1	10000	1
shopify 1.x-dev	10000	1
instagram_feeds 1.x-dev	10000	1
healthcheck 2.0.x-dev	10000	1
pagedesigner 2.x-dev	10000	1
facets_form 1.x-dev	10000	1
skins 1.x-dev	10000	1
entity_share_websub 1.0.x-dev	10000	1
cognito 2.x-dev	10000	1
storychief 2.x-dev	10000	1
simple_analytics 2.x-dev	10000	1
entity_visitors 1.x-dev	10000	1
entity_version 1.x-dev	10000	1
simple_paypal_field 1.x-dev	10000	1
book_pdf 1.0.x-dev	10000	1
simple_global_filter 2.1.0	10000	1
braintree_api 4.0.0-rc1	10000	1
entity_share_auto 1.0.x-dev	10000	1
notification_system 1.x-dev	10000	1
epayco 1.x-dev	10000	1
libraries_delay_load 2.1.x-dev	10000	1
applenews 1.x-dev	10000	1
mail_entity_queue 1.x-dev	10000	1
entityreference_modal_create 1.x-dev	10000	1
library_field 1.0.0-beta3	10000	1
webfinger 1.x-dev	10000	1
entity_usage_integrity 1.x-dev	10000	1
log_entity 1.x-dev	10000	1
recurly 4.x-dev	10000	1
scheduled_message 2.x-dev	10000	1
silktide 9.0.3	10000	1
cdek_api 2.x-dev	10000	1
brandfolder 2.0.x-dev	10000	1
queue_stats 2.0.0-beta2	10000	1
rijksvideo 1.0.x-dev	10000	1
livestorm 1.x-dev	10000	1
entity_router 2.x-dev	10000	1
system_monitor 3.0.x-dev	10000	1
smartwaiver 1.x-dev	10000	1
component_schema 1.0.x-dev	10000	1
resque 2.x-dev	10000	1
sir_trevor 2.x-dev	10000	1
cloudconvert 2.0-alpha3	10000	1
comscore_direct 1.x-dev	10000	1
readme_help 1.0.0	10000	1
communication 2.0.x-dev	10000	1
content_locker 2.0.x-dev	10000	1
entity_unified_access 1.x-dev	10000	1
entity_workflow 2.x-dev	10000	1
env_dependencies 1.x-dev	10000	1
event_dispatchers 1.0.x-dev	10000	1
f1_p13n 1.x-dev	10000	1
geofield_polygon_select 1.x-dev	10000	1
islandora 2.4.1	10000	1
learnosity 1.0.x-dev	10000	1
message_integration 1.0.x-dev	10000	1
periodic 1.1.x-dev	10000	1
poool 1.0.x-dev	10000	1
protected_routes 1.0.x-dev	10000	1
statistics_snapshosts 1.0.x-dev	10000	1

Results are from dataset #148 from 2022-09-11T12:04. Report is ran by the Drupal Association regularly.