Undefined index: file (line 2017)

I am getting this too. php5.5

Me too. php5.5. Seems to have started after updating Commerce to latest version and core from 7.26 to 7.32... though that could be a red herring?

I'm fairly new to Drupal... workaround?

Me too. core 7.34, php 5.2.17

Notice: Undefined index: file in devel/devel.module on line 2017

Backtrace: theme_get_setting-> backtrace_error_handler->ddebug_backtrace( $return = TRUE, $pop = -1)

Affected code:

    $path = $backtrace[$counter - 1]['file'];

Local vars:

$call =
Undefined
$counter =
int 6
$function =
Undefined
$len =
Undefined
$nbsp =
Undefined
$nicetrace =
Undefined
$options =
boolean true
$path =
Undefined
$paths =
Undefined
$pop =
int -1
$return =
boolean true

$backtrace =
array (size=6)
  0 => 
    array (size=4)
      'file' => string 'includes/theme.inc' (length=94)
      'line' => int 1476
      'function' => string 'backtrace_error_handler' (length=23)
      'args' => 
        array (size=5)
          0 => &int 8
          1 => &string 'Trying to get property of non-object' (length=36)
...
5 => 
    array (size=2)
      'function' => string '_drupal_exception_handler' (length=25)
      'args' => 
        array (size=1)
          0 => 
            object(EntityMalformedException)[2335]
              protected 'message' => string 'Missing bundle property on entity of type node.' (length=47)
              private 'string' (Exception) => string '' (length=0)
              protected 'code' => int 0
              protected 'file' => string 'includes/common.inc' (length=95)
              protected 'line' => int 7844
              private 'trace' (Exception) => 
                array (size=24)
                  0 => 
                    array (size=4)
...

So it seems 5 element from $backtrace doesn't have file key.

Possible fix:

-$path = $backtrace[$counter - 1]['file'];
+$path = !empty($backtrace[$counter - 1]['file']) ? $backtrace[$counter - 1]['file'] : '';

Yes, and what about 'line'?

Patch must go against the -dev version, if the issue is still there...

Is it also in D8?

Over a year after the most recent comment prior to this one, and the problem is still happening for me (with version 7.x-1.5 — changing to the latest -dev of 2017-Jan-10 changes the line number of the error message to 1980 instead of 2017 but does nothing else to fix it).

EDIT to add: Applying @kenorb’s fix manually from #9 makes the error message go away, but no SQL queries are shown even on a page with Views output which should be loaded with them. It prevents the error message, but does not fix the underlying problem.

Yeah, it's too bad that no one ever cared enough to post a patch.

I encountered and fixed it in #2959508: PHP 7.2 Incompatibility - count(): Parameter must be an array or an object that implements Countable in krumo::_object