[Vuejs]-Vue: V-input-file is not of type ‘HTMLFormElement’ error

Based on your last comment, i created a codepen to check the issue.

1. There is no HTMLFormElement error which i encountered, check below code pen
   https://codepen.io/kurtesy_/pen/MWJBwQX?editors=1111

2. Next to Post a formData using axios use the below protocol, you need to specify "Content-Type": "multipart/form-data"

   axios({
      method: "post",
      url: "your_url",
      data: formData,
      headers: { "Content-Type": "multipart/form-data" },
    })
      .then(function (response) {
        //handle success
        console.log(response);
      })
      .catch(function (response) {
        //handle error
        console.log(response);
      });