Annotation error while trying to upload image using symfony 4.4

I am using Symfony 4.4 and trying to upload an image. But while creating schemas I am getting an Annotation error.

[Semantical Error] The annotation “@SymfonyComponentValidatorConstraintsImageImage” in property AppEntityStudent::$photo was never imported. Did you maybe forget to add a “use” statement for this annotation?

Attaching the code snippets below, please say what is the mistake I made.

use SymfonyComponentValidatorConstraints as Assert;

/** 
      * @AssertNotBlank(message="Please, upload the photo.") 
      * @AssertFile(mimeTypes={ "image/png", "image/jpeg" }) 
   */
    private $photo;

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Answer

It looks like you forgot to add use SymfonyComponentValidatorConstraints as Assert; to the top of the file.

According to the error message and the documentation for NoBlank, that line should fix your issue.