Android 6.0 : java.net.UnknownHostException: Unable to resolve host. Working fine in Android 7.0

Question

There is issue of java.net.UnknownHostException: Unable to resolve host "URL": No address associated with hostname

Here is what I tried.

Turn on/off Wifi
Test in Mobile Network
Check in Postman
Runtime permission integrated
INTERNET permission is also there.

Above solutions is working fine in Android 4.4.4, 6.0, and also 7.0.

But this is not working only on 6.0.

are you sure that the problem is not device-specific? have you tried multiple 6.0 devices? — Vladyslav Matviienko
– Vladyslav Matviienko, Commented Jun 26, 2017 at 6:20
Unable to resolve host "URL": did you literally use a hostname "URL"? — Henry
– Henry, Commented Jun 26, 2017 at 6:20
@VladMatvienko Yes I tested In 3 6.0 Devices. There is same problem in all 3 6.0 devices. — Chirag Savsani
– Chirag Savsani, Commented Jun 26, 2017 at 6:22

Gustavo Soler · Accepted Answer · 2017-08-08 22:07:01Z

1

After several attemps I found unreadable characters when setting the URL at my code. Opening the source file with VIM, I found: http://this.is.an.ip<200b>/

Where <200b> is an unreadable character at my IDE (Android studio).

After the deletion of <200b> my app started running ok at Android 5/6.

Good luck!

answered Aug 8, 2017 at 22:07

Gustavo Soler

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