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I have a view that comes from a .yml file. It is supposed to show an index I created manually. However, when I import the yaml file manually, the search is not triggered (i.e. when I enable Solr Search Devel, it does not yield any information regarding any search, and the server doesn't receive any request).

The strange thing is that if I manually create (through the GUI) the exact same view, the search is properly triggered, and Solr Search Devel shows informations on the search.

Why is my view not calling the Search API ? Could it be linked to something else than the yaml file itself ?

Here is my yml

langcode: en
status: true
dependencies:
 enforced:
 module:
 - gref
 config:
 - field.storage.node.field_author_name
 - field.storage.node.field_isbn
 - field.storage.node.field_number_of_pages
 - field.storage.node.field_summary
 - search_api.index.books_index
 module:
 - search_api
 - text
id: gref_books_search_view
label: 'Gref Books Search View'
module: views
description: ''
tag: ''
base_table: search_api_index_books_index
base_field: search_api_id
core: 8.x
display:
 default:
 display_plugin: default
 id: default
 display_title: Master
 position: 0
 display_options:
 access:
 type: none
 options: 
 cache:
 type: tag
 options: 
 query:
 type: views_query
 options:
 bypass_access: false
 skip_access: false
 exposed_form:
 type: basic
 options:
 submit_button: Rechercher
 reset_button: true
 reset_button_label: Reset
 exposed_sorts_label: 'trier par'
 expose_sort_order: true
 sort_asc_label: Asc
 sort_desc_label: Desc
 pager:
 type: mini
 options:
 items_per_page: 10
 offset: 0
 id: 0
 total_pages: null
 expose:
 items_per_page: false
 items_per_page_label: 'Items per page'
 items_per_page_options: '5, 10, 25, 50'
 items_per_page_options_all: false
 items_per_page_options_all_label: '- All -'
 offset: false
 offset_label: Offset
 tags:
 previous: '‹‹'
 next: '››'
 style:
 type: html_list
 options:
 grouping: 
 row_class: result-element
 default_row_class: true
 type: ul
 wrapper_class: item-list
 class: ''
 row:
 type: fields
 fields:
 title:
 id: title
 table: search_api_index_books_index
 field: title
 relationship: none
 group_type: group
 admin_label: ''
 label: Title
 exclude: false
 alter:
 alter_text: false
 text: ''
 make_link: false
 path: ''
 absolute: false
 external: false
 replace_spaces: false
 path_case: none
 trim_whitespace: false
 alt: ''
 rel: ''
 link_class: ''
 prefix: ''
 suffix: ''
 target: ''
 nl2br: false
 max_length: 0
 word_boundary: true
 ellipsis: true
 more_link: false
 more_link_text: ''
 more_link_path: ''
 strip_tags: false
 trim: false
 preserve_tags: ''
 html: false
 element_type: ''
 element_class: result_title
 element_label_type: ''
 element_label_class: title_label
 element_label_colon: true
 element_wrapper_type: ''
 element_wrapper_class: ''
 element_default_classes: true
 empty: ''
 hide_empty: false
 empty_zero: false
 hide_alter_empty: true
 click_sort_column: value
 type: string
 settings:
 link_to_entity: false
 group_column: value
 group_columns: 
 group_rows: true
 delta_limit: 0
 delta_offset: 0
 delta_reversed: false
 delta_first_last: false
 multi_type: separator
 separator: ', '
 field_api_classes: false
 field_rendering: true
 fallback_handler: search_api
 fallback_options:
 link_to_item: false
 use_highlighting: false
 multi_type: separator
 multi_separator: ', '
 plugin_id: search_api_field
 field_author_name:
 id: field_author_name
 table: search_api_index_books_index
 field: field_author_name
 relationship: none
 group_type: group
 admin_label: ''
 label: 'Author Name'
 exclude: false
 alter:
 alter_text: false
 text: ''
 make_link: false
 path: ''
 absolute: false
 external: false
 replace_spaces: false
 path_case: none
 trim_whitespace: false
 alt: ''
 rel: ''
 link_class: ''
 prefix: ''
 suffix: ''
 target: ''
 nl2br: false
 max_length: 50
 word_boundary: false
 ellipsis: true
 more_link: false
 more_link_text: ''
 more_link_path: ''
 strip_tags: false
 trim: true
 preserve_tags: ''
 html: false
 element_type: ''
 element_class: result_author
 element_label_type: ''
 element_label_class: author_label
 element_label_colon: true
 element_wrapper_type: ''
 element_wrapper_class: ''
 element_default_classes: true
 empty: ''
 hide_empty: false
 empty_zero: false
 hide_alter_empty: true
 click_sort_column: value
 type: string
 settings:
 link_to_entity: false
 group_column: value
 group_columns: 
 group_rows: true
 delta_limit: 0
 delta_offset: 0
 delta_reversed: false
 delta_first_last: false
 multi_type: separator
 separator: ', '
 field_api_classes: false
 field_rendering: true
 fallback_handler: search_api
 fallback_options:
 link_to_item: false
 use_highlighting: false
 multi_type: separator
 multi_separator: ', '
 entity_type: null
 entity_field: null
 plugin_id: search_api_field
 field_summary:
 id: field_summary
 table: search_api_index_books_index
 field: field_summary
 relationship: none
 group_type: group
 admin_label: ''
 label: Summary
 exclude: false
 alter:
 alter_text: false
 text: ''
 make_link: false
 path: ''
 absolute: false
 external: false
 replace_spaces: false
 path_case: none
 trim_whitespace: false
 alt: ''
 rel: ''
 link_class: ''
 prefix: ''
 suffix: ''
 target: ''
 nl2br: false
 max_length: 100
 word_boundary: false
 ellipsis: true
 more_link: false
 more_link_text: ''
 more_link_path: ''
 strip_tags: false
 trim: true
 preserve_tags: ''
 html: false
 element_type: ''
 element_class: result_summary
 element_label_type: ''
 element_label_class: summary_label
 element_label_colon: true
 element_wrapper_type: ''
 element_wrapper_class: ''
 element_default_classes: true
 empty: ''
 hide_empty: false
 empty_zero: false
 hide_alter_empty: true
 click_sort_column: value
 type: string
 settings:
 link_to_entity: false
 group_column: value
 group_columns: 
 group_rows: true
 delta_limit: 0
 delta_offset: 0
 delta_reversed: false
 delta_first_last: false
 multi_type: separator
 separator: ', '
 field_api_classes: false
 field_rendering: true
 fallback_handler: search_api
 fallback_options:
 link_to_item: false
 use_highlighting: false
 multi_type: separator
 multi_separator: ', '
 plugin_id: search_api_field
 field_number_of_pages:
 id: field_number_of_pages
 table: search_api_index_books_index
 field: field_number_of_pages
 relationship: none
 group_type: group
 admin_label: ''
 label: 'No. Pages'
 exclude: false
 alter:
 alter_text: false
 text: ''
 make_link: false
 path: ''
 absolute: false
 external: false
 replace_spaces: false
 path_case: none
 trim_whitespace: false
 alt: ''
 rel: ''
 link_class: ''
 prefix: ''
 suffix: ''
 target: ''
 nl2br: false
 max_length: 0
 word_boundary: true
 ellipsis: true
 more_link: false
 more_link_text: ''
 more_link_path: ''
 strip_tags: false
 trim: false
 preserve_tags: ''
 html: false
 element_type: ''
 element_class: result_no_pages
 element_label_type: ''
 element_label_class: no_pages_label
 element_label_colon: true
 element_wrapper_type: ''
 element_wrapper_class: ''
 element_default_classes: true
 empty: ''
 hide_empty: false
 empty_zero: false
 hide_alter_empty: true
 click_sort_column: value
 type: number_integer
 settings:
 thousand_separator: ''
 prefix_suffix: true
 group_column: value
 group_columns: 
 group_rows: true
 delta_limit: 0
 delta_offset: 0
 delta_reversed: false
 delta_first_last: false
 multi_type: separator
 separator: ', '
 field_api_classes: false
 field_rendering: true
 fallback_handler: search_api_numeric
 fallback_options:
 set_precision: false
 precision: 0
 decimal: .
 separator: ','
 format_plural: false
 format_plural_string: !!binary MQNAY291bnQ=
 prefix: ''
 suffix: ''
 link_to_item: false
 use_highlighting: false
 multi_type: separator
 multi_separator: ', '
 format_plural_values:
 - '1'
 - '@count'
 plugin_id: search_api_field
 field_isbn:
 id: field_isbn
 table: search_api_index_books_index
 field: field_isbn
 relationship: none
 group_type: group
 admin_label: ''
 label: ISBN
 exclude: false
 alter:
 alter_text: false
 text: ''
 make_link: false
 path: ''
 absolute: false
 external: false
 replace_spaces: false
 path_case: none
 trim_whitespace: false
 alt: ''
 rel: ''
 link_class: ''
 prefix: ''
 suffix: ''
 target: ''
 nl2br: false
 max_length: 0
 word_boundary: true
 ellipsis: true
 more_link: false
 more_link_text: ''
 more_link_path: ''
 strip_tags: false
 trim: false
 preserve_tags: ''
 html: false
 element_type: ''
 element_class: result_isbn
 element_label_type: ''
 element_label_class: isbn_label
 element_label_colon: true
 element_wrapper_type: ''
 element_wrapper_class: ''
 element_default_classes: true
 empty: ''
 hide_empty: false
 empty_zero: false
 hide_alter_empty: true
 click_sort_column: value
 type: text_default
 settings: 
 group_column: value
 group_columns: 
 group_rows: true
 delta_limit: 0
 delta_offset: 0
 delta_reversed: false
 delta_first_last: false
 multi_type: separator
 separator: ', '
 field_api_classes: false
 field_rendering: true
 fallback_handler: search_api
 fallback_options:
 link_to_item: false
 use_highlighting: false
 multi_type: separator
 multi_separator: ', '
 plugin_id: search_api_field
 filters:
 search_api_fulltext:
 id: search_api_fulltext
 table: search_api_index_books_index
 field: search_api_fulltext
 relationship: none
 group_type: group
 admin_label: ''
 operator: and
 value: ''
 group: 1
 exposed: true
 expose:
 operator_id: search_api_fulltext_op
 label: ''
 description: ''
 use_operator: false
 operator: search_api_fulltext_op
 identifier: search_api_fulltext
 required: false
 remember: false
 multiple: false
 remember_roles:
 authenticated: authenticated
 anonymous: '0'
 administrator: '0'
 placeholder: ''
 is_grouped: false
 group_info:
 label: ''
 description: ''
 identifier: ''
 optional: true
 widget: select
 multiple: false
 remember: false
 default_group: All
 default_group_multiple: 
 group_items: 
 parse_mode: terms
 min_length: null
 fields: 
 plugin_id: search_api_fulltext
 sorts: 
 title: 'Recherche dans les livres'
 header: 
 footer: 
 empty:
 area:
 id: area
 table: views
 field: area
 relationship: none
 group_type: group
 admin_label: ''
 empty: true
 tokenize: false
 content:
 value: 'No results were found.'
 format: basic_html
 plugin_id: text
 relationships: 
 arguments: 
 display_extenders: 
 use_ajax: true
 cache_metadata:
 max-age: -1
 contexts:
 - 'languages:language_content'
 - 'languages:language_interface'
 - url
 - url.query_args
 tags:
 - 'config:field.storage.node.field_author_name'
 - 'config:field.storage.node.field_isbn'
 - 'config:field.storage.node.field_number_of_pages'
 - 'config:field.storage.node.field_summary'
 page_1:
 display_plugin: page
 id: page_1
 display_title: Page
 position: 1
 display_options:
 display_extenders: 
 path: gref/books
 cache:
 type: none
 defaults:
 cache: false
 cache_metadata:
 max-age: -1
 contexts:
 - 'languages:language_content'
 - 'languages:language_interface'
 - url
 - url.query_args
 tags:
 - 'config:field.storage.node.field_author_name'
 - 'config:field.storage.node.field_isbn'
 - 'config:field.storage.node.field_number_of_pages'
 - 'config:field.storage.node.field_summary'

For anyone experiencing the same issue, I managed to fix the problem.

In my case it was because one of the facets attached to the view referenced an unexisting field of my Solr index. Since /var/log/apache2/error.log was completely silent about this, I stumbled upon it completely randomly.

Check if all the facets you use reference existing fields.