Some uploading files don't contain meta tags. We have to replace with default values it
'Requested data is not valid.':
[{
'meta': {
'author': ['Field may not be null.'],
'album': ['Field may not be null.'],
'track': ['Field may not be null.'],
'title': ['Field may not be null.']},
'cover': ['Field may not be null.']
}
]
Some uploading files don't contain meta tags. We have to replace with default values it