The drupal/core requirement is not Drupal 9 compatible. Either remove it or update it to be compatible with Drupal 9. See https://drupal.org/node/2514612#s-drupal-9-compatibility.

Total occurrences Projects affected Topmost group Category
161 161 200 info.yml/composer.json
Filter projects
Project Group Occurrences Sort ascending
rules 3.x-dev 200 1
bokbasen_checkout 1.x-dev 10000 1
signalwire 1.x-dev 10000 1
cdek_api 2.x-dev 10000 1
graphql_export 1.x-dev 10000 1
statistics_api 1.x-dev 10000 1
bookkeeping 1.x-dev 10000 1
snippet_metatag 1.x-dev 10000 1
config_pr 1.x-dev 10000 1
cilogon_auth 1.1 10000 1
paid_ads 1.x-dev 10000 1
sms_aliyun 1.x-dev 10000 1
revealjs_node 1.x-dev 10000 1
panopoly_demo 2.x-dev 10000 1
mjml 1.x-dev 10000 1
noty_messages 1.x-dev 10000 1
cg 1.x-dev 10000 1
lod 1.0.0-beta1 10000 1
jsonapi_views 1.x-dev 10000 1
spring_bloom 1.0 10000 1
admin_toolbar_toggle 1.x-dev 10000 1
migrate_git 1.x-dev 10000 1
xs 1.x-dev 10000 1
sms_mobilyws 1.x-dev 10000 1
video_embed_peertube 1.0 10000 1
private_entity 1.x-dev 10000 1
cron_service 1.x-dev 10000 1
social_auth_decoupled 2.x-dev 10000 1
intercept 1.x-dev 10000 1
static_generator 1.x-dev 10000 1
membership_entity 2.x-dev 10000 1
message_thread 1.x-dev 10000 1
events_seats_field 1.x-dev 10000 1
social_auth_google_api 2.x-dev 10000 1
flexiform 1.x-dev 10000 1
controller_annotations 1.x-dev 10000 1
entity_merge 2.x-dev 10000 1
civimail 1.x-dev 10000 1
link_short 1.x-dev 10000 1
loopit 1.x-dev 10000 1
react_webform_backend 1.0-beta3 10000 1
panopoly_magic 2.x-dev 10000 1
paragraphs_sets_alter 1.x-dev 10000 1
commerce_ingenico_gc 1.x-dev 10000 1
testtools 2.x-dev 10000 1
commerce_multiorder 1.x-dev 10000 1
file_update 1.0.0-alpha3 10000 1
commerce_confirm_leave 1.x-dev 10000 1
commerce_country_store 1.x-dev 10000 1
panopoly_test 2.x-dev 10000 1
sayhellodialogflow 1.x-dev 10000 1
string_unique 1.x-dev 10000 1
config_pages_import 1.x-dev 10000 1
taxonomy_quick_child 1.x-dev 10000 1
peertube 1.x-dev 10000 1
commerce_payment_extra 1.x-dev 10000 1
commerce_payfort 1.x-dev 10000 1
synergy 1.x-dev 10000 1
show_entity_aliases 1.x-dev 10000 1
quivers 1.x-dev 10000 1
imgproxy 1.x-dev 10000 1
cura 1.x-dev 10000 1
image_derivatives_base64_representation 1.x-dev 10000 1
image_derivatives_selection 1.x-dev 10000 1
media_jove 1.x-dev 10000 1
audit_monitoring 1.x-dev 10000 1
redis_batch 1.x-dev 10000 1
records 1.x-dev 10000 1
skilling 1.7 10000 1
currency_pbank 1.x-dev 10000 1
social_auth_facebook_api 2.x-dev 10000 1
entity_generic 3.x-dev 10000 1
social_auth_twitter_api 2.x-dev 10000 1
esm 1.x-dev 10000 1
contacts_events 1.x-dev 10000 1
contacts 1.x-dev 10000 1
entity_reference_widget_helpers 1.x-dev 10000 1
entity_remote 1.x-dev 10000 1
social_auth_linkedin_api 2.x-dev 10000 1
decoupled_auth 1.x-dev 10000 1
interface_string_stats 1.x-dev 10000 1
yoast_seo 2.x-dev 200 1
google_webfont_loader_api 1.x-dev 10000 1
sms_twilio 1.x-dev 10000 1
library_manager 1.x-dev 10000 1
userpoints 1.x-dev 10000 1
feeds_para_mapper 1.x-dev 10000 1
entity_reference_validators 1.x-dev 10000 1
stacks 1.x-dev 10000 1
wxt_bootstrap 1.x-dev 10000 1
migrate_source_xls 1.x-dev 10000 1
paragraphs_limits 1.x-dev 10000 1
monitoring_logging 1.x-dev 10000 1
entity_reference_uuid 1.x-dev 10000 1
commerce_agree_terms 1.x-dev 10000 1
foldershare 1.3 10000 1
paragraphs_inline_entity_form 1.x-dev 10000 1
migrate_html_to_paragraphs 1.x-dev 10000 1
linkchecker 1.x-dev 10000 1
sqlsrv 3.1.x-dev 10000 1
entity_version 1.x-dev 10000 1
drutopia_core 1.x-dev 10000 1
hide_revision_field 2.x-dev 1000 1
php 1.x-dev 200 1
fontyourface 3.x-dev 200 1
media_entity_image 1.x-dev 500 1
colorbox_inline 1.x-dev 500 1
fast_404 2.x-dev 500 1
paragraphs_asymmetric_translation_widgets 1.x-dev 500 1
media_entity_video 1.x-dev 1000 1
admin_content_notification 3.6 1000 1
entity_meta_relation 1.0-beta7 10000 1
front 1.x-dev 1000 1
wbm2cm 2.x-dev 10000 1
rng 1.x-dev 10000 1
field_states_ui 2.x-dev 10000 1
media_avportal 1.x-dev 10000 1
rdfui 1.x-dev 10000 1
commerce_migrate 2.x-dev 10000 1
tr_rulez 1.x-dev 10000 1
infogram 1.x-dev 10000 1
refreshless 1.x-dev 10000 1
content_notification 1.0 10000 1
commerce_inventory 1.x-dev 10000 1
commerce_adyen 1.x-dev 10000 1
telephone_type 3.x-dev 10000 1
rtz 1.1 10000 1
coc_forms_auto_export 1.x-dev 10000 1
search_api_swiftype 1.x-dev 10000 1
asf 1.x-dev 10000 1
client_config_care 1.3 10000 1
media_private_access 1.x-dev 10000 1
webform_rut 1.x-dev 10000 1
braintree_cashier 4.x-dev 10000 1
commerce_cart_refresh 1.x-dev 10000 1
entity_reference_ajax_formatter 1.x-dev 10000 1
news_cards 1.x-dev 10000 1
media_feeds 1.x-dev 10000 1
real_estate 3.x-dev 10000 1
elasticsearch_aws_connector 6.x-dev 10000 1
horizontal_tabs 1.x-dev 10000 1
globallink 1.x-dev 10000 1
panopoly_pages 2.x-dev 10000 1
filecache 1.x-dev 10000 1
oomph_paragraphs 1.x-dev 10000 1
simpleaddress 1.x-dev 10000 1
panopoly_images 2.x-dev 10000 1
panopoly_core 2.x-dev 10000 1
panopoly_theme 2.x-dev 10000 1
panopoly_widgets 2.x-dev 10000 1
panopoly_users 2.x-dev 10000 1
jsonapi_cross_bundles 1.x-dev 10000 1
parade 2.x-dev 10000 1
entity_quicklook 1.x-dev 10000 1
zendesk_forms 1.x-dev 10000 1
vidyard 1.x-dev 10000 1
translation_extractor 1.2 10000 1
simple_twilio 1.x-dev 10000 1
config_ignore_readonly 1.x-dev 10000 1
mollie_payment 2.x-dev 10000 1
system_page_override 1.x-dev 10000 1