I am doing the simplest of projects in Xcode 8.2.1, an "Hello World!" message, but when I run it, although it says that "Build Succeeded", iOS simulator, (for the default iPhone 7 Plus), shows a black screen. When I quit iOS simulator, it says - mach error 308 - ipc/mig - server died.
I see that this question was asked before on the Net, but the suggested methods don't work here. I tried to reset all settings for iOS simulator, and also had a look at the deployment settings for the project. They seem to be ok.
please make sure you have defined your root view controller or initial view controller
Related
When I close my app (double tap home button and touch the X) on my iPhone, it crashes and I get this error:
objc[9337]: class `ADManager' not linked into application
objc[9337]: class `ADSessionManager' not linked into application
objc[9337]: class `ADSession' not linked into application
(lldb)
-Deployment target: iOS 5.1
-Iphone iOS 5.1.1
-Testing with Xcode on iPhone
How can I fix it?
This is the default behavior of all iOS apps in iOS4 and later.
Um, it's not a good idea to be running the app connected to Xcode debugger and then terminate it in the middle of the process. It can very easily lead to the bootstrap error.
The debugger is constantly monitoring your app when you run it in iTunes, terminating it would obviously cause a crash =/
You can see a spinning icon in the "debug" tab in Xcode 4 (the tab with the icon that looks like a speech button and some lines in it in your project navigator) when you're in the middle of debugging.
Not sure what you're trying to achieve by terminating your app, a registered background process such as location service?
I am new to iPhone application development, and I am building a new calculator just to see how everything works.
I completed my code, but when I run the application, it does not show anything on the simulator.
I have created a number pad, but the screen is blank (white) after the application launches.
Can anyone give me a pointer, please?
I am using Xcode 4.2 and deployment target is 5.0
If you are using empty template for your project them make sure that you are correctly adding your view to window in appdelegate file in function named applicationDidFinishLaunching.
It can also happen when you target for iphone and using xid file related to ipad or another way.
hope it will help you and sorry for my bad english
When I run my app on the simulator, every time a white blank screen would be generated. but after I black iPhone button on the bottom to exit the app, the views will then be visible after you re-enter the app. then the app run as usual.
But the situation is different when I load it into my iPhone.
Only BLACK blank screen can be seen into the app. after I exit the app and re-enter it, still nothing can be seen, and the app would automatically exit, too.
I dunno why it would be like that as simulator just simulate the real iPhone.
Here is some information:
iOS version of my iPhone: iOS 5
XCode version: XCode 4.2
Hope someone can help me. Thanks a lot.
Make sure that your Base SDK is as high or higher than your current version. Change it in your target settings and your project settings. Also change your compiler to Apple LLVM and your debugger (under edit scheme) to LLDB.
I'm trying to learn iOS development, and have run into a problem that has stopped any and all progress. Whenever I build and run my code on the simulator, I just get a blank grey screen! I can't find any help on the subject, so I turn to you wonderful people here. I have no idea what's wrong. Even when I start a new blank project and build/run it, I get a blank grey screen. It seems like something is wrong in xcode that's preventing my MainWindow.xib file to be used.
Like I said, I'm just learning, so I don't have much experience as to how this all works.
Try this: with iOS Simulator active, select Window->Scale->50%. This worked for me after frustrating hours and hours of restarting the computer, reinstalling Xcode, and searching the Web. Turned out there was nothing wrong with iOS Simulator, just that the default Scale of 100% hid all the icons. OS X 10.9.3, Xcode 5.1.1, iOS Simulator 7.1.
Some of the sample project templates (e.g. 'view based application') don't show anything interesting - only a grey screen (bceause it's up to you to actually add something to the view). But if you create a new "Navigation based application" sample project, you'll see a blue nav bar and an empty table in your app.
I just upgraded my Mac to Snow Leopard, and installed Xcode 3.2.3.
The app I am working on ran perfectly before the upgrade.
Now, the default image appears briefly, then the screen goes black except for the status bar. Same behavior on my iPhone 4 and in the simulator, whether I target iOS 3.2 or 4.
The app is still running and I an see from traces and in the debugger that the app is running normally, and my root view controller has been loaded, but nothing but blackness on screen
Anyone seen this before?
Thanks
JK
Problem solved. I needed to add [window makeKeyAndVisible]; to my applicationDidLaunch method. Wonder why it worked before, with just the wired up XIB file???