Ionic not working in emulator but working browser - ionic4

My ionic angular application is working in Browser but when I build and run in android emulator it's not working. There is nor CORS issues.

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Expo project android emulator issue

I've been working on a react-native app managed mode built on expo, I was working from a mac at first which worked perfectly fine using the IOS simulator it didn't work on android emulator on mac, here i switched to a windows computer and the issue still exists on the android emulator, executing the command "expo start" the app crashes after the splash screen before the logo appears, I tested the app on a real device on the debug mode and it worked! also after deploying the apk file the app works with no issues, the only problem is it's not working on android simulator using expo client, things i tried to solve the issue including trying to reinstall android studio and install the latest version, tried updating expo sdk to latest version also tried playing around with the app.js from where the app launches the first time but still crashes at the same point, it's not showing any errors or warning it just crashes, any suggestion or something i could try would be very helpful thanks.
I am also having a similar issue : after upgrading to the latest release (SDK 41) the android simulator hangs often and the app crash without any errors. But works some time .

Expo Stopped ( expo client app is not working )

I had been working with react native for few days and I used to run my app in my own android phone through LAN. But recently the expo client app is not supporting. When I open it it shows all the recent project as well as working project. when I click on working once it shows all the normal stuffs like Dowloading javascript bundles and in metro bundler also it shows Building JavaScript bundle: finished in 5380ms. No problem there. But when it finishes a pop up came and show Expo stopped
like this :
I cleared the cashe and atlast reinstalled expo client app in android device and expo-cli in my system. Still the problem persisting. How to resolve it... :(

React native application when run from terminal cannot debug in safari

When React native application is run from terminal using
npx react-native run-ios
Cannot debug webview from safari. Safari develop menu does not show the simulator in the devices .
I could not debug the application in safari when run using command
npx react-native run-ios.
But when I tried running the application using Xcode ,simulator was available in
safari develop menu. To debug your web url you need to go to
safari>develop>simulator name> web url

Build Cordova Browser for production

I have an Apache Cordova app which I have deployed for both ios and android. But i want to deploy it for my web server i.e. I want to deploy it on my server live so users can access it using their browsers. How can I go about it?
for android its cordova build android --release but for browser, I don't know which command to use for this operation.
For browser it is simply
cordova build browser --release

Mfp cli WLResourceRequest is not defined error

i recently converted my mfp studio project to mfp cli cordova project.
when i preview my project everything work fine except "WLResourceRequest is not defined" that log to the console.
enter image description here
i noticed that the web preview works fine, but the mobile browser simulator not working and logs the same error
Same problem. I have a ionic project. This was working till I installed MFP 8.0 beta
Post that I m unable to make any adapter calls.
It doesn`t work in Chrome, but it works on my device. Using MFP 8.0