Many thanks for your help miteshsc.  I can see it now ok. However it comes up with this error message. Any ideas?  Thanks again.

ERROR: Vars in views must be an array: group_chat/chat_process_engine

Also the same problems as others before i.e. no text showing on chat box.  Are there specific files or folders which need permission changes?

Thanks again.

@StreetRJ: Seems like ELGG version is causing the problem.. May i know which version of ELGG you are using???

Thanks for your help in this. We are on 1.8.14

@StreetRJ: I ll have to check for 1.8.15 first then only i can say something.. Pls give me sometime.. ill get back to you for the same.

Sorry i mean, 1.8.14 version

Thanks again for your help.

Hello,

First good job on the plugin!

Though, there is a 2 main problems with the code. So here is the solution that solves the white page :

• the plugin can't access the historic file because of en url error in the start.php in the get_chat_content function (line 59)

$filepath = $CONFIG->data root.'/group_chat/'.$guid.'/'.$filename;        

and it must be : (delete the first / in front of group_chat)

$filepath = $CONFIG->dataroot.'group_chat/'.$guid.'/'.$filename;        

• in the process.php file (action folder), the creation and set up of the directories in elgg-data are wrong (permission must be a number and not a string for example) -> from line 46

$dataroot = $CONFIG->dataroot;
    if(!is_dir($dataroot.'group_chat')){
        mkdir($dataroot.'group_chat', '0777');  -> 0777 should not be a string but a number!
        chmod($dataroot.'group_chat', '0777');  -> chmod already set up in mkdir command. so this line is not needed.
    }
    $groupEntityId =  get_input('groupEntityId');
    if(!is_dir($dataroot.'group_chat'.'/'.$groupEntityId)){ -> your checking here if it is a directory and not if it exist. Which is better I think.
        mkdir($dataroot.'group_chat'.'/'.$groupEntityId, '0777');  -> 0777 should not be a string but a number!
        chmod($dataroot.'group_chat'.'/'.$groupEntityId, '0777');  -> chmod already set up in mkdir command. so this line is not needed.
    }

so it must be like that: 

    $dataroot = $CONFIG->dataroot;
    if(!is_dir($dataroot.'group_chat')){
        mkdir($dataroot.'group_chat', 0777); 
    }

    $groupEntityId =  get_input('groupEntityId');
    if(!file_exists($dataroot.'group_chat'.'/'.$groupEntityId)){
        mkdir($dataroot.'group_chat'.'/'.$groupEntityId, 0775); 
    }

Hope this quick fix will help others.

I still  havent found the fix for the "Vars should be in an array" error. Will post here if I find a solution.