unable to add images?

Greetings everyone,

I am a new user of Omeka, willing to use it in order to create a virtual exhibition. I managed to install it on a koding VM, but i now have issues concerning the pictures. I am indeed unable to add any kind of image to my items. Any time I try, it finishes with an error message. Do you have any idea how I could fix the issue? Would it be possible that any plug-in is the cause of my problem?
Feel free of course to ask for any further information concerning my configuration.
Thank you in advance,

user4242

First thing will be to follow the steps to retrieve error messages. That should tell us much more about what's going on.

Okay. So here it is:

Omeka_Storage_Exception
Destination directory is not writable: '/home/user3bd/Web/omeka/files/fullsize'.

exception 'Omeka_Storage_Exception' with message 'Destination directory is not writable: '/home/user3bd/Web/omeka/files/fullsize'.' in /home/user3bd/Web/omeka/application/libraries/Omeka/Storage/Adapter/Filesystem.php:219
Stack trace:
#0 /home/user3bd/Web/omeka/application/libraries/Omeka/Storage/Adapter/Filesystem.php(116): Omeka_Storage_Adapter_Filesystem->_rename('/tmp/fullsize_e...', '/home/user3bd/W...')
#1 [internal function]: Omeka_Storage_Adapter_Filesystem->store('/tmp/fullsize_e...', 'fullsize/e9651f...')
#2 /home/user3bd/Web/omeka/application/libraries/Omeka/Storage.php(67): call_user_func_array(Array, Array)
#3 /home/user3bd/Web/omeka/application/models/File.php(429): Omeka_Storage->__call('store', Array)
#4 /home/user3bd/Web/omeka/application/models/File.php(429): Omeka_Storage->store('/tmp/fullsize_e...', 'fullsize/e9651f...')
#5 /home/user3bd/Web/omeka/application/models/Job/FileProcessUpload.php(23): File->storeFiles()
#6 /home/user3bd/Web/omeka/application/libraries/Omeka/Job/Dispatcher/Adapter/Synchronous.php(25): Job_FileProcessUpload->perform()
#7 /home/user3bd/Web/omeka/application/libraries/Omeka/Job/Dispatcher/Default.php(136): Omeka_Job_Dispatcher_Adapter_Synchronous->send('{"className":"J...', Array)
#8 /home/user3bd/Web/omeka/application/models/File.php(203): Omeka_Job_Dispatcher_Default->send('Job_FileProcess...', Array)
#9 [internal function]: File->afterSave(Array)
#10 /home/user3bd/Web/omeka/application/libraries/Omeka/Record/AbstractRecord.php(277): call_user_func(Array, Array)
#11 /home/user3bd/Web/omeka/application/libraries/Omeka/Record/AbstractRecord.php(550): Omeka_Record_AbstractRecord->runCallbacks('afterSave', Array)
#12 /home/user3bd/Web/omeka/application/models/Item.php(335): Omeka_Record_AbstractRecord->save()
#13 /home/user3bd/Web/omeka/application/models/Item.php(248): Item->saveFiles()
#14 [internal function]: Item->afterSave(Array)
#15 /home/user3bd/Web/omeka/application/libraries/Omeka/Record/AbstractRecord.php(277): call_user_func(Array, Array)
#16 /home/user3bd/Web/omeka/application/libraries/Omeka/Record/AbstractRecord.php(550): Omeka_Record_AbstractRecord->runCallbacks('afterSave', Array)
#17 /home/user3bd/Web/omeka/application/libraries/Omeka/Controller/AbstractActionController.php(188): Omeka_Record_AbstractRecord->save(false)
#18 /home/user3bd/Web/omeka/application/controllers/ItemsController.php(151): Omeka_Controller_AbstractActionController->addAction()
#19 /home/user3bd/Web/omeka/application/libraries/Zend/Controller/Action.php(516): ItemsController->addAction()
#20 /home/user3bd/Web/omeka/application/libraries/Zend/Controller/Dispatcher/Standard.php(308): Zend_Controller_Action->dispatch('addAction')
#21 /home/user3bd/Web/omeka/application/libraries/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http))
#22 /home/user3bd/Web/omeka/application/libraries/Zend/Application/Bootstrap/Bootstrap.php(105): Zend_Controller_Front->dispatch()
#23 /home/user3bd/Web/omeka/application/libraries/Zend/Application.php(384): Zend_Application_Bootstrap_Bootstrap->run()
#24 /home/user3bd/Web/omeka/application/libraries/Omeka/Application.php(79): Zend_Application->run()
#25 /home/user3bd/Web/omeka/admin/index.php(28): Omeka_Application->run()
#26 {main}

Thanks.

That's a little surprising, because Omeka checks for this issue when installing, so I would have expected a warning about this before you got to adding items.

It looks like the files directory, and its subdirectories, are not writable by the server. You'll want to check the permissions for those folder, and make sure that the server has permission to write to them.

The problem came from the permission indeed. A little work on the server was enough to resolve the problem. I must thank you greatly, I probably would not have found it on my own!
Have a nice day, and thanks again!