I am trying to simulate my app in Ionic DevApp tool.
I am able to open it there but I receive this message and when I press ‘ok’ the app closes.


I add this line in config.xml but it didn’t solve.

<preference name="loadUrlTimeoutValue" value="700000" />

Could someone help me, please?


facing the same issue


Hi Yes I get the same issue, has anyone found a solution yet?


I had the same issue and I resolved it with opening port 8100 on my ubuntu pc os:
sudo ufw allow 8100


i have the same issue, the solution please !!


Hello, Solve the error by configuring the firewall for my network …!


After a long.R&D, your post helped me to come out the problem,Thank