[AngularJS] file upload is not work in IE with protractor

the conf file is :

exports.config = {

  seleniumAddress: 'http://localhost:4444/wd/hub',

  

  specs: ['../../NG-Experience/uee/src/main/webapp/test/pc/**/pro.file.js'],

  

  capabilities: {

     'browserName': 'internet explorer',

     'platform': 'ANY',

  },

  

  baseUrl: 'http://localhost:8080',

  

  onPrepare: function(){

        require('jasmine-reporters');

        var capsPromise = browser.getCapabilities();

browser.driver.manage().window().maximize();

        capsPromise.then(function(caps){

            var browserName = caps.caps_.browserName.toUpperCase();

            var browserVersion = caps.caps_.version;

            var prePendStr = browserName + "-" + browserVersion + "-";

            jasmine.getEnv().addReporter(new

            jasmine.JUnitXmlReporter("protractor_output", true, true,"protractor-"+browserName,true));

        });

   },

}

test case is :

var filepath = "D:\\TestTools\\fileupload\\";

describe('file组件文件上传', function() {

it('001.单文件上传,file单独使用,并进行require校验', function() {       

browser.get('/uee/test/pc/file.business.html#/file');

browser.driver.manage().window().maximize();

$("#upload-single1").click();

expect($("#fileSingle1-file-value").getAttribute("ueevstatus")).toBe("fail");

expect($("#fileSingle1-file-value").getAttribute("ueevmsg")).toBe("必填项。");

$("#fileSingle1-file").sendKeys(filepath+"file01.gif");

        $("#upload-single1").click();

        expect($("#fileSingle1_name input").getAttribute("value")).toBe("file01.gif");

        expect($("#fileSingle1_tmpfile input").getAttribute("value")).not.toBe("");

        expect($("#fileSingle1_size input").getAttribute("value")).toBe("3836KB");

});  

});  

question：it work well in chrome and firefox ,  but it can't select file in it .  the sendKeys does't work.