Syntax error or access violation: 1055 Expression #8 of SELECT list is not in GROUP BY clause and contains nonaggregated column

Question

i tried the CakePHP 3.x \"Bookmaker Tutorial\" and i followed the instruction step by step. Unfortunately, at the end of the first chapter i get the attached error:

Answer 1

In addition to tadman's comment, for tutorial you are following, you should distinct your sql select query by both Bookmarks.id and BookmarksTags.tag_id, instead of just Bookmarks.id

To do that, in BookmarksTable.php file, line

->distinct(['Bookmarks.id'])

should look like

->distinct(['Bookmarks.id', 'BookmarksTags.tag_id'])