[Neos] Exception #1391806394: Image resource file could not be found

[Jean Claude]

hello Michael

I am not an expert, I am a beginner !..

I had many problems with the installation on a local computer with windows 7, but after a very long time, I found a solution that works.
Then I took an on line server with Plesk and Ubuntu ...
it is best to start installation with "Composer" . 
after loading, you must create the folder _Resources
 in  Neos/Web /_Resources ..
then, to prepare the Data folders, I select : (Development  or Production )
FLOW_CONTEXT=Development ./flow flow:cache:flush FLOW_CONTEXT=Production ./flow flow:cache:warmup

then, I followed the advice by granting rights with the command line:
/flow core:setfilepermissions <commandlineuser> <webuser> <webgroup>
but with Plesk and Ubuntu, 
the permissions are not installed correctly ...
because "setfilepermissions" told me "psaserv" and "psacln" does not exist 
but, they do exist ... perhaps I badly configured my server  ?

I have to do a chmod 777 on all folders
Neos / Data files, Neos / Package etc ...
and then to do
chown -R owner:psacln /var/www/vhosts/your_domaine.com/httpdocs/Neos
(for me owner = jccosse)
to properly put the owner and the group (psacln) to all folders and files.
I sometimes have to do it again after  "  ./flow flow:cache:flush --force  "

and I run the project creation ....   http://your_domaine.com/setup
and each time, everything works fine...

I think if your project Neos working properly, if you completely delete the "Data" folder and then
create folders with (Development  or Production )
FLOW_CONTEXT=Development ./flow flow:cache:flush FLOW_CONTEXT=Production ./flow flow:cache:warmup
/flow core:setfilepermissions <commandlineuser> <webuser> <webgroup>
and I run again  the project creation ....   http://your_domaine.com/setup

selecting your database without creating a new user and clicking "skip" before the creation of the project, you will arrive directly on the choice of "Frontend" or "Backend" and you find your project as it was before ...

I don't  know if it will help you understand,
but I chose to write to make perhaps a response to those who have problems with Plesk and Ubuntu :)

best Regards
jean-claude

 ..... I worry about saving a project because I discover problems that I can not find a solution ! ....