I fixed it .. edit this file:
/vendor/flagrow/flarum-ext-image-upload/migrations/2016_01_11_000000_create_flagrow_images_table.php
with:

<?php 
namespace flagrow\image\upload\Migration;

use Flarum\Database\Migration;
use Illuminate\Database\Schema\Blueprint;


return Migration::createTable(
    'flagrow_images',
    function (Blueprint $table) {
            $table->increments('id');
            $table->integer('user_id')->unsigned()->nullable();
            $table->integer('post_id')->unsigned();
            $table->string('file_name')->nullable();
            $table->string('upload_method');
            $table->timestamp('created_at');
    }
);

    7h3ev1l It might be better to just submit a PR to the Flagrow team at their Image Upload Github page. Then users can install through composer like normal. I don't think most users are going to be comfortable manually editing files to make the extension work.

    Do you know I could get rid of this?

    Whenever I try to uninstall either, I get a 500 error.

      Just tagged version 0.2.0 which makes the extension compatible with Flarum 0.1.0-beta.5. Please let us know if you encounter any issues.

      Tagged 0.2.1 with the German translation, thank you Reflic.

      Is this:
      "General preferences
      Maximum file size (in kilobytes)"
      is for imgur too>?

      Lol i just updated and now i cant upload images to imgur ?

      I tried to reinstall it but still cant upload..

      Huh lol.. after few seconds its working but i dont get uploading progress.

      I am sorry...
      I am having issues using the latest version in the new beta...
      Using local storage the uploads fail.
      Debug Info:

      POST https://domain.com/forum/api/image/upload
      
      {
        "errors": [
          {
            "status": "404",
            "code": "route_not_found"
          }
        ]
      }
      

      Thank you in advance for any help you might be able to provide. =)

        f0r3v3r I have a strong feeling your package is misconfigured.. Did you try re-enabling the extension?

        For anyone having a similar issue, somehow php-gd was broken. Check that it is installed and enabled in php.ini.
        I am guessing the logic of the extension must have changed somehow, because it was working in the previous beta without it.

        Anyways... Thank you all for your time and consideration.

        Though I do wonder what is re-enabling an extension supposed to fix exactly?


        I have tried re-enabling and re-installing the extension. I have also checked permissions.
        Error log gives me no output...
        Access log gives me the following:

        [03/Apr/2016:23:39:20 +0200] "POST /forum/api/image/upload HTTP/1.1" 301 209
        [03/Apr/2016:23:39:20 +0200] "GET /forum/api/image/upload/ HTTP/1.1" 404 54
        


        I would also note that the DEBUG flag that appears says: "The requested resource was not found."

        What I don't understand is why it is even referencing that folder location?
        I created that location after trying to get it to work, but without that location existing it throws the following error:
        Oops! Something went wrong. Please reload the page and try again. DEBUG

        500 Internal Server Error
        POST https://domain.com/forum/api/image/upload
        
        null
        


        If I create that folder location I get the other error. I have left the default upload location at assets/images so , again, I am really unclear where this other directory is getting called from.


        However, looking again with that directory not existing, it does produce the following error:

        PHP Fatal error:  Call to undefined function Intervention\\Image\\Gd\\imagecreatefromjpeg() in /home/user/public_html/forum/vendor/intervention/image/src/Intervention/Image/Gd/Decoder.php on line 33, referer: https://domain.com/forum/d/45-thread-title
        

          We should add this as a required dependency to the package. "ext-gd". Not sure, but I assumed flarum/flarum had the same requirement. Thanks f0r3v3r for checking this.

            I install v0.2.1 and enable the extension,but when I upload a image, the uploading circle was not appear, wait a few second the image was upload success, and the link was input to textbox.

            It's all done, but no uploading circle, the problem is?

            thanks

            ps. My Flarum is beta-5

              louisw128 It's all done, but no uploading circle, the problem is?

              It's a known issue.. We have to look into it.

              how to save img by year/month folder ?
              .
              from
              /assets/images/1-F08JwrDb40l3HVYB.jpeg
              to
              /assets/images/2016/201604/1-F08JwrDb40l3HVYB.jpeg

                The framework that we (mostly @luceos actually) developed should be easily adaptable to a generic file uploader. At the moment though it is not in the roadmap, but it may be in the future ?