catch/handle error upload() method in SAPUI5

[#1]

Hi experts,

im using upload method from class sap.ui.unified.FileUploader. I want to catch/handle the error from FileUploader.upload().

i need this error becouse upload method never executes handeUploadComplete 

This is the definition of oFileUploader

var oFileUploader = new FileUploader({
				id: "Hello",
				name: "Hello",
				tooltip: "something",
				uploadComplete: [this.handleUploadComplete, this],
				change: [this.onFileChange, this],
				width: '100%'
			});