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I can't start expo app in ios simulator
I searched for this error and tried everything I could, but I still can't.
I tried this ways
checked xcode command Line Tools (Xcode 12.2(1B2B45b))
tried ios simulator Erase all contents and settings
created new expo project and run
run this command line expo client:install:ios
created .watchmanconfig empty object
all didn't work!
what should i do?
I build an app with the 2nd beta of Xcode 11, using SwiftUI, and everything worked completely fine, but now, with the 3rd beta, the app isn't even build. I get errors like "Use of undeclared type 'View'", "Unknown attribute 'State'" etc. What can I do? Is the problem in my code or is it just a bug?
The problem is when I'm trying to build the app to run on my Mac (with UIKit for Mac)
#State var score = 0
The error is "Unknown attribute 'State'"
struct ContentView : View {
/*...*/
}
The error is "Use of undeclared type 'View'"
Got same issue on Xcode 11.2. Found out that the reason was that somewhere in same module I declared protocol State {}. This breaks compiler without any reasonable errors.
This is from the Xcode 11 Beta 3 Release Notes.
Known Issues
Xcode 11 doesn’t support working with SwiftUI in an iPad app brought to macOS. (41416222, 51201699)
I downloaded the Xcode 11 Beta 3 myself just to confirm the errors you mentioned, and I had the same issues when trying to build a SwiftUI project for Mac.
I would suggest going back to using Xcode Beta 2 if possible. Unfortunately, Apple doesn't provide download links to previous betas, so hopefully you have a Time Machine backup or Beta 2 still installed on your computer. Otherwise, you might be out of luck until the next beta is released.
I was getting the same "Unknown attribute 'State'" issue in Beta 5. But I was doing "#state" and not "#State". Case matters. It's hard to notice because both ways are shown as purple.
If you are doing a Kotlin multi-platform project, check if your shared module has a component named "State".
Instead #main, please replace #UIApplicationMain.
I've attached screenshots.
https://prnt.sc/vimvwn
I got the same error while trying to compile a Swift project created with Xcode 13 on Xcode 11. The problem was that the newer version uses the SDK 12.1 while the older one uses the SDK 10.15. To let the project compile on the older Xcode/SDK I just performed these steps:
remove the #main attribute from the swift source code
add Cocoa.framework in the section Frameworks, Libraries, and Embedded Content
add a file named main.m to the project (no bridge header) with this content:
#include <Cocoa/Cocoa.h>
int main(int argc, const char * argv[]) {
return NSApplicationMain(argc, argv);
}
I need to start a VNC server (x11vnc) in my Raspberry pi 3. It's running without X-server (Raspbian Lite). My app (C++ QT 5) writes directly to Linux framebuffer.
Following to some instructions in Qt creator forum, I've done some progress.
At this moment I can start a x11vnc server, connect to Raspberry via a regular VNC client and use my app with mouse and keyboard.
YES, IT'S WORKING.
BUT... If I change the Raspberry resolution (raspi-config) to something different from 1280x720, I don't know why, I can't see the screen perfectly. The VNC client shows a distorted display, like the image bellow.
(And, unfortunately I can't set a fixed resolution)
This is my actual settings to start x11vnc:
x11vnc -permitfiletransfer -nopw -rawfb +/dev/fb0 -forever -noxrecord -noxfixes -noxdamage -xrandr -bg -shared -pipeinput UINPUT:accel=0.7,reset=0 -cursor none -nodragging
I already tried to start with -clip 1280x720+0+0, -geometry 1280x720 and -scale 1280x720, (with other values too) but had the same problem. =/
And I start my application like this:
my-app -platform linuxfb
Both are started with root user.
If someone have an idea of how to fix this, please tell me know! Thanks!
I just installed RubyMotion on my iMac.
I created my first app - Hello
This is the code:
class AppDelegate
def application(application, didFinishLaunchingWithOptions:launchOptions)
#window = UIWindow.alloc.initWithFrame(UIScreen.mainScreen.bounds)
#window.rootViewController = HelloViewController.alloc.init
#window.rootViewController.wantsFullScreenLayout = true
#window.makeKeyAndVisible
true
end
end
I run $ Rake and the IOS Simulator start up. And I get this error:
2014-04-25 18:58:03.157 Hello[10488:70b] Cannot find executable for CFBundle 0x8d8a130 </Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator7.1.sdk/System/Library/AccessibilityBundles/CertUIFramework.axbundle> (not loaded)
I tried this from another question:
Temporary workaround: click iOS Simulator > Reset Content and Settings... and run again.
But, that didn't fix it.
Thanks for the help!
It's a relatively harmless (I believe) bug in the iOS 7 SDK.
https://devforums.apple.com/message/940094#940094
I had the same issue and found your post when searching for a solution. My application appeared to be running fine but I was still getting this message I was able to eliminate the message on my machine, here is what I had to do;
Stop all execution on the simulator.
Go to the simulator's home screen using shift-command-h.
Delete the app from the simulator device by holding a click on my program until the delete icon appeared, then click the X to delete.
In the iOS Simulator select Reset Content and Settings.
Clean the project in Xcode, shift-command-k.
Build it and run it.
Note, I was doing steps 4 & 5 but that wasn't working. It wasn't until I added step 3 (as crazy as it sounds) that it cleared my message.
Hope this works for you!
--Dave
Perhaps deleting the app, resetting, and restarting the iOS simulator would work.
I am attempting to use libnfc to allow NFC operations on Windows 7. I am using the SCL3711. The device shows up when running testlibusb, so it would seem that LibUSB is functioning correctly. However, when I run the libnfc test application nfc-list I get the message "No NFC device found". Any suggestions on how to fix this problem would be greatly appreciated.