[Ext.createByAlias] Cannot create an instance of unrecognized alias: formaction.stand

Hi,

I am getting '[Ext.createByAlias] Cannot create an instance of unrecognized alias: formaction.standardsubmit' on

form submit, only in my sencha app build code. the development code works fine. below is the snippet of the form submit I use.

if(uploadform.isValid()){

uploadform.submit({

url: initParams.uploadURL + '/' + upKey + '-' + upIndex,

target : "iframe" + i

});

}

Thanks in advance.