Unable to add custom page to WordPress admin panel

Related Posts:

1. WordPress admin menu formatting issue
2. The Great WordPress Admin Menu Challenge of Jan 2011 (a.k.a. How to Resolve Some Challenges when Modifying the WordPress Admin Menu System?)
3. Remove duplicate main – submenu in admin?
4. Plugin View Details Link
5. Add an admin page, but don’t show it on the admin menu
6. Getting custom admin submenu item to highlight when its active
7. Add update notification bubble to admin menu item?
8. Are there any reasons you can’t use strings for admin menu positions?
9. remove_menu_page doesn’t work on custom plugin menus
10. Add visit site to your toolbar instead of being in the dropdown
11. List table not rendering when $this->items is filled
12. Order Admin sub-menu items?
13. Admin sidebar items overlapping in admin panel
14. How Can I remove or hide the export page in WordPress menu?
15. How to check if an admin (sub)menu already exists?
16. How to hide menu on WordPress admin
17. custom admin menu with custom filed
18. Add highlighting to new Admin Dashboard Menu Item
19. Theme editor menu item refuses to go away
20. Remove menus and submenus
21. Highlighting a Menu Item by Post Name
22. How to remove the Plugins Editor from the admin menu
23. add logout button on admin side menu
24. Admin custom option screen not saved unless user manage_options capability
25. WordPress admin menu formatting issue
26. How to remove_menu_page added by a plugin that appears to have no referenceable slug
27. Admin page menu keeps bugging out
28. WordPress setting API strucked
29. Admin Menu – Highlight top-level menu when on a sub-menu page (without showing sub-menu)
30. Show admin menu and toolbar in admin post page
31. Edit Page or Post from Top Admin Bar
32. How to minimize WP dashboard menu programmatically?
33. How to change menu page capability
34. WordPress add_options_page() function not considering role
35. How to determin which admin screen/sub screen I’m currently viewing
36. Add post-new.php?post_cat=catslug to admin menu
37. Link to Second Level Admin Page
38. check current_theme_supports in admin_menu hook
39. How do I insert the smaller variant of an image?
40. Why add_menu_page adds admin.php and how to remove it?
41. Is there any way to add absolute path for add_menu_page function?
42. Admin menu bar dropdown opens when I click on a form element (Chrome) [closed]
43. how can i add custom menu in admin panel?
44. Admin page repeatable fields
45. Change URL of plugin admin menu
46. menu_order not working with slugs that start with admin.php
47. How to add_menu_page include a php file page from theme directory
48. How do I demote a menu item in the admin menu?
49. Removing posts and comments from WordPress
50. Is it possible to pass variables from add_user_page?
51. place a direct link to custom-stylesheet, under appearance menu in wp-admin
52. Is there a limit to the number of items that can be added using the Appearance Menus Screen?
53. Wrong current class on admin menu with add_submenu_page()
54. How to access $menu variable in custom .PHP file that loads wp-load.php?
55. Role capability issue
56. Adding a submenu to the Tools menu returns tools.php in a popup box
57. WordPress admin menu formatting issue
58. What action/filter/function determines “current” class in WP Admin Menu
59. ‘Headers already sent’ Error When Redirecting from add_submenu_page() Callback
60. Create dynamic wordrpess blank page
61. What’s the correct way of moving a menu page to a submenu
62. Is it possible to add 3 level menu item to admin menu?
63. Use Drag & Drop Functionality from WordPress Admin Area in the Frontend?
64. Adding admin top-level menus
65. Disordered sidebar in admin panel of self-hosted blog network [duplicate]
66. How to rename Profile link in wp-admin page
67. Additional menu item popping in submenus
68. toolbar not visible on pages using front-page template
69. Visiting a console submenu page does not expand its parent menu item
70. How to align the top of an admin pointer to the target element?
71. WordPress add page under admin submenu and retaining the active status of the parent submenu page in the menu
72. WP components no style
73. Disable new Site Health screen safely?
74. Adding menu item to WordPress admin bar for editors to edit one plugin’s settings
75. Remove Elementor Menu From WordPress Admin
76. Moving Smush plugin menu position to media submenu and removing it from main menu
77. add submenu page doesn’t display
78. Moving the WordPress dashboard avatar over the admin menu
79. WordPress plugins add parent menu option in admin main right
80. update_option does not work in this scenario – how do I fix?
81. Change menu order of core post-type in UI?
82. How to reference an existing css content-based icon, within my admin menu hook
83. Margin problem on management menu?
84. How can I move Customizer menu item to first level in WP Dashboard?
85. How do I disable certain menu in editor user administrator page
86. How can I restrict a custom WordPress role access to only a specific plugin?
87. How can I reorder admin bar items?
88. Admin sidebar customization
89. Show limited menu to admin
90. How would one add a nonce to a menu item in the WordPress dashboard?
91. How can I change the admin menu title and url title on WordPress
92. Different Admin language
93. add sub_menu to a sub_menu (multiLevel sub_menu) in admin menu in wordpress
94. add_menu_page not show link for custom role
95. Linked pages not working with wordpress
96. Hide admin menu items if it is empty
97. Insert link in sub menu – Admin panel
98. How to add a notification next to custom admin menu?
99. How to have submenus collapsed until they are clicked?
100. admin menu: use default “general” page for theme settings using add_menu_page and add_submenu_page