MaterialFileUploader Issue : maxFiles="1" throws exception on console

[dhinakarreddy]

When I am setting the maxFiles to 1, the app is working fine, but throwing a console error.
Uncaught Error: java.lang.NumberFormatException: For input string: "undefined"
at Dropzone.Emitter.emit (dropzoneJsDebug.js:58)
at Dropzone._updateMaxFilesReachedClass (dropzoneJsDebug.js:857)
at dropzoneJsDebug.js:999
at Dropzone.accept (dropzoneJsDebug.js:154)
at Dropzone.accept (dropzoneJsDebug.js:974)
at Dropzone.addFile (dropzoneJsDebug.js:988)
at HTMLInputElement. (dropzoneJsDebug.js:573)