On device and emulator I receive a blank screen. How could I receive errors?

On device and emulator I receive a blank screen. It seems There are errors. How could I receive errors from a device or an emulator?

Thank you.

for ios

xcode or safari debugger

for android

weinre < 4.3 or chrome inspect >= 4.4

I am developing under Linux Mint. Yes I am testing by Chome inspect. But The application works well in the browser. But it does not work on a device.

1 Like

Yes. It looks well. I tried adb logcat .