jquery - Krajee JqueryPlugin file input - disable validation -

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i'm using krajee jqueryplugin bootstrap , have modal edit form. file selected, when submit form, have following error message:

"you must select @ least 1 file upload "

how disable validation upload? not want send image.

this code:

$('#file-0a').fileinput({                showupload: false,         allowedfileextensions: ['jpg', 'png'],         initialcaption: 'img48.png',         initialpreview: [             "/images/img48.png"         ],         overwriteinitial: true   });

find input tag (id="file-0a") , add attribute data-min-file-count="1" 0 this

<input id="file-0a" data-min-file-count="0"/>

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