unable to upload folder with files using protractor for web application testing - protractor

Question

Iam using protractor for testing my web application that has a button to popup window to open file explorer where I need to select a folder that contains 5 files that needs to be uploaded.
I have the code as
''''
var fileUpload = '/home/indu/jpg';
require("./logger");
console.file("./test.log");
var absolutePath = path.resolve(__dirname, fileUpload);
fs.readdir(absolutePath, (err, files) => {
for (i = 0; i < files.length; i++) {
filelst.push(fileUpload +"/"+files[i]);
}
console.log("fuull is ",filelst);
});
var remote = require('/usr/lib/node_modules/protractor/node_modules/selenium-webdriver/remote');
browser.setFileDetector(new remote.FileDetector());
var absolutePath = path.resolve(__dirname, fileUpload);
console.log("value of absolutePath",absolutePath);
var fileElem = element(by.css('input[type="file"]'));
// Unhide file input
browser.executeScript("arguments[0].style.visibility = 'visible'; arguments[0].style.height = '1px'; arguments[0].style.width = '1px'; arguments[0].style.opacity = 1", fileElem.getWebElement());
fileElem.sendKeys(absolutePath);
when I execute I get below error
Failed: unexpected alert open: {Alert text : Error during upload, redirecting to login page .... }
(Session info: chrome=96.0.4664.110): Error during upload, redirecting to login page ....
Build info: version: '3.141.59', revision: 'e82be7d358', time: '2018-11-14T08:25:53'
System info: host: 'indu-Latitude-E6420', ip: '127.0.1.1', os.name: 'Linux', os.arch: 'amd64', os.version: '5.4.0-91-generic', java.version: '1.8.0_312'
Driver info: driver.version: unknown
I have tried on windows10 as well as ubuntu 18.04.05 and on both I get chrome driver info version unknown error. I have searched for this error and tried suggested solution in
Unable to start e2e tesing in angular project
but that didnt work too.
Pls suggest

Answer 1

I resolved the problem by a
browser.wait(ExpectedConditions.elementToBeClickable(buttonelementlocator),
100, 'Element is not clickable.').then( () => {
uploadfiles();
});
function uploadfiles(){
var shell = require('shelljs');
var exec = require('child_process').execFile;
// uploadfile.bat contains the autoit exe to upload the files and handle
chromebrowser alert
var task = shell.exec('uploadfile.bat');
if (task.code !== 0) {
console.log("execute AutoIt script fail: " + task.stdout);
shell.exit(1);
}
}