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Elements should be user-editable, so that it can be cleaned (Selenium :: WebDriver :: Error: : Invalid ElementStart Error) (Eval): 2: In `attach_file`

When I run my facility that contains attach_file step, this will give me this error is.

Here is the line of my feature that fails: 

  and "file_field" / "file / cake / 1.jpeg" file for "file_field"   
 And here is my step definition:  
  when / ^ (?: | I) attach the file "([^"] *) "To" ([^ "] *)"   
 What is it? (?: "(":: "(" [: ":]" $ / Do | path, field, selector | with_scope (selector) enclosed_file (field, path) is within the end (<: "([^" *] ")   
 The body knows what the problem is?   
 
 
 There is a problem in Capibara 2. See.

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