xcode9.2

I am looking for solution to get data in background mode even app is terminated. There are lots of tutorials and answers available for this questions, but my questions is different than other. I haven't find any proper solution on stackoverflow, so posted this question. I have scenario which I can explain. I'm using realm database which store event date, name, time, address etc. Now the thing is that, I want to write a code which are execute in background, In this code I want to get all event data and compare their date with today's date. And based on days remaining between these days fire

I know that so many people have asked this question earlier. But I think my situation is different. In my case Xcode 9.2 was already installed and I upgraded macOS from 10.13.2 to 10.13.5. Then I installed Xcode 10 beta. Now when I'm running any project on Xcode 9.2 and try to use simulator, its becoming black though I can see the xcode logs. Things I have tried so far, Uninstalled Xcode 10 Beta Uninstalling & reinstalling Xcode 9.2 Uninstall Xcode 9.2 and install Xcode 9.4 Reset Content & Settings from simulator menu Restart Device from simulator menu Resizing simulator. Followed this post

Working with my first application for learning purposes. It goes well but has met into a problem with Xcode. When I try to run the application on the iPhone simulator this message always pops up "This app could not be installed at this time." What is wrong? There are no errors when trying to build the app. Has tried to clean the build. Reinstall pods. Restarted Xcode. Erased all settings on the simulator device, however, the problems still exist. The error message does not give me any information. Is there another logfile I could look into or something? I managed to find the problem. The