Did you do DB/Flarum folder backups before the upgrade?

    HelenL You will probably be fine. Colors, tags, etc are all stored in the database. Avatars are stored in the public/assets folder. As long as you haven't deleted either of those, you should be good.

    The list of extensions is stored in the composer.json file. Could you share the contents of that file?

        almalino I thought I did, but I didn't. I managed to back up everything but the storage folder. (Don't ask. It seemed like a good idea at the time...)

            askvortsov Is there a doc that I can use to work from? I tried to do an install after renaming the directory but it needs a new database, so obviously it isn't a new install that I need to do.

            Also, the title should have been "screwed up an upgrade", obviously... apologies for that.

            Contents of composer.json:

            {
            "name": "flarum/flarum",
            "description": "Delightfully simple forum software.",
            "type": "project",
            "keywords": [
            "forum",
            "discussion"
            ],
            "homepage": "https://flarum.org/",
            "license": "MIT",
            "authors": [
            {
            "name": "Franz Liedke",
            "email": "franz@develophp.org"
            },
            {
            "name": "Daniel Klabbers",
            "email": "daniel@klabbers.email",
            "homepage": "https://luceos.com"
            },
            {
            "name": "David Sevilla Martin",
            "email": "me+flarum@datitisev.me",
            "homepage": "https://datitisev.me"
            },
            {
            "name": "Clark Winkelmann",
            "email": "clark.winkelmann@gmail.com",
            "homepage": "https://clarkwinkelmann.com"
            },
            {
            "name": "Matthew Kilgore",
            "email": "matthew@kilgore.dev"
            }
            ],
            "support": {
            "issues": "https://github.com/flarum/core/issues",
            "source": "https://github.com/flarum/flarum",
            "docs": "https://flarum.org/docs/"
            },
            "require": {
            "flarum/approval": "0.1.0",
            "flarum/bbcode": "0.1.0",
            "flarum/core": "0.1.0",
            "flarum/emoji": "0.1.0",
            "flarum/flags": "0.1.0",
            "flarum/lang-english": "0.1.0",
            "flarum/likes": "0.1.0",
            "flarum/lock": "0.1.0",
            "flarum/markdown": "0.1.0",
            "flarum/mentions": "0.1.0",
            "flarum/pusher": "0.1.0",
            "flarum/statistics": "0.1.0",
            "flarum/sticky": "0.1.0",
            "flarum/subscriptions": "0.1.0",
            "flarum/suspend": "0.1.0",
            "flarum/tags": "0.1.0",
            "fof/polls": "0.1.2",
            "fof/user-directory": "0.3.4",
            "fof/recaptcha": "0.1.2",
            "fof/reactions": "0.2.4",
            "fof/upload": "0.8.5",
            "fof/sitemap": "0.5.0"
            },
            "config": {
            "preferred-install": "dist",
            "sort-packages": true
            },
            "minimum-stability": "beta",
            "prefer-stable": true
            }

              HelenL storage folder

              Storage folder isn't really necessary, it's just cached stuff and logs.

              Here's what I would recommend doing. Make a new install. When you get to the installation stage (where it asks you to put in admin account info and database info, stop. Create a file called config.php in your new Flarum install directory. For the contents, put:

              <?php return array (
  'debug' => true,
  'poweredByHeader' => true,
  'database' => 
  array (
    'driver' => 'mysql',
    'host' => DATABASE_HOST,
    'port' => DATABASE_PORT,
    'database' => DATABASE_NAME,
    'username' => DATABASE_USERNAME,
    'password' => DATABASE_PASSWORD,
    'charset' => 'utf8mb4',
    'collation' => 'utf8mb4_unicode_ci',
    'prefix' => NULL,
    'strict' => false,
    'engine' => NULL,
    'prefix_indexes' => true,
  ),
  'url' => URL_TO_YOUR_SITE_CASE_SENSITIVE_INCLUDE_HTTPS,
  'paths' => 
  array (
    'api' => 'api',
    'admin' => 'admin',
  ),
);

              (https://docs.flarum.org/config.html)

              Once you put that in with the old database info, make sure you run php flarum migrate. That should update your database to the new version of Flarum. Then, you can reinstall your extensions.

                  askvortsov I'll try that. I have about 6 copies of my forum folder now, and nightly database backups, so I'm not worried about screwing anything up.

                      9 days later

                      I declared success too early 😅 . The forums are fine, and going from weird tag names to valid texts and colors and all the posts visible, I thought I was done.

                      Turns out though that absolutely none of my extensions are working, and I have no idea how to chase that down. They install without error with 'composer require', but they do nothing. I started over so that I could install them individually. fof/polls doesn't add polls. fof/reactions doesn't give me a reactions option. fof/sitemap doesn't give me a sitemap.xml - that link gives me an exception. The other extensions I'm a little less sure of, because I'm not sure if I'm accessing them correctly, but I recall that fof/user-directory added a /user or /users link, and both of those give me the same exception as /sitemap.xml.

                      How could I have broken extensions when they seem to install just fine?

                      The exceptions look like this: Flarum \ Http \ Exception \ RouteNotFoundException
                      /sitemap.xml

                      and post a code fragment:

                      */
                      public function process(Request $request, Handler $handler): Response
                      {
                      $method = $request->getMethod();
                      $uri = $request->getUri()->getPath() ?: '/';
                      $routeInfo = $this->getDispatcher()->dispatch($method, $uri);
                      switch ($routeInfo[0]) {
                      case Dispatcher::NOT_FOUND:
                      throw new RouteNotFoundException($uri); <<<<line highlighted
                      case Dispatcher::METHOD_NOT_ALLOWED:
                      throw new MethodNotAllowedException($method);

                      I'm reluctant to post complete screenshots because there's too much site identification information.

                      (Edit: striking out all the stuff about exceptions, this was my bad url in config.php)

                        HelenL are you able to access the admin panel? Do you see the extension(s) there? After installing with Composer you need to enable the extensions in the admin panel,

                            clarkwinkelmann Well, duh! Thank you!

                            Also, the exception was a red herring. I had a trailing slash in the url in my config.php. I knew I was getting somewhere when I re-ran the install and stopped getting exceptions, but nothing worked until I enabled them. I'm not 100% sure I'm there, but sitemaps and user maps are working, so I probably am.

                            (Edit: ) Yes, all good. I thought reactions weren't working when I replied here, but it turns out I was trying to add a reaction to my own post. Polls, reactions and the various directories are working now.