Unknown collation: 'utf8mb4_0900_ai_ci' drupal code example
Example 1: Unknown collation: 'utf8mb4_0900_ai_ci' drupal
sed -i '' 's/utf8mb4_0900_ai_ci/utf8mb4_unicode_ci/g' db_name.sqlExample 2: Unknown collation: 'utf8mb4_0900_ai_ci'
search utf8mb4 change with utf8
search utf8mb4_unicode_ci change with utf8_unicode_ci