Need help on XCode: Thread 1:EXC_BAD_INSTRUCTION (WebView) - ios

Question

I'm new in XCode and I'm trying to create a simple Webview that displays www.google.com website
But the Code does not RUN. I got an Error: Threat1: Signal SIGATBRT
Here is my code:
import UIKit
import WebKit
class ViewController: UIViewController {
#IBOutlet var WebView: WKWebView!
override func viewDidLoad() {
super.viewDidLoad()
let url = URL(string: "www.google.com")
let request = URLRequest(url: url!)
WebView.load(request)
// Do any additional setup after loading the view.
}
}
Questions Update
import UIKit
#UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate { // <- The Error Pointing Here!!! -> Threat1: Signal SIGABRT
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
// Override point for customization after application launch.
return true
}
Output Text
2020-01-16 09:58:27.127224+0200 wvApp2[6306:366786] -[__NSArrayM loadRequest:]: unrecognized selector sent to instance 0x600001f0c3c0
2020-01-16 09:59:21.186755+0200 wvApp2[6306:366786] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSArrayM loadRequest:]: unrecognized selector sent to instance 0x600001f0c3c0'
*** First throw call stack:
(
0 CoreFoundation 0x00007fff23c7127e __exceptionPreprocess + 350
1 libobjc.A.dylib 0x00007fff513fbb20 objc_exception_throw + 48
2 CoreFoundation 0x00007fff23c91fd4 -[NSObject(NSObject) doesNotRecognizeSelector:] + 132
3 CoreFoundation 0x00007fff23c75c4c ___forwarding___ + 1436
4 CoreFoundation 0x00007fff23c77f78 _CF_forwarding_prep_0 + 120
5 wvApp2 0x00000001038677ea $s6wvApp214ViewControllerC11viewDidLoadyyF + 890
6 wvApp2 0x0000000103867a8b $s6wvApp214ViewControllerC11viewDidLoadyyFTo + 43
7 UIKitCore 0x00007fff47a0ef01 -[UIViewController _sendViewDidLoadWithAppearanceProxyObjectTaggingEnabled] + 83
8 UIKitCore 0x00007fff47a13e5a -[UIViewController loadViewIfRequired] + 1084
9 UIKitCore 0x00007fff47a14277 -[UIViewController view] + 27
10 UIKitCore 0x00007fff480ca3cf -[UIWindow addRootViewControllerViewIfPossible] + 150
11 UIKitCore 0x00007fff480c9ac0 -[UIWindow _updateLayerOrderingAndSetLayerHidden:actionBlock:] + 232
12 UIKitCore 0x00007fff480cab43 -[UIWindow _setHidden:forced:] + 362
13 UIKitCore 0x00007fff480ddef1 -[UIWindow _mainQueue_makeKeyAndVisible] + 42
14 UIKitCore 0x00007fff482e9431 -[UIWindowScene _makeKeyAndVisibleIfNeeded] + 202
15 UIKitCore 0x00007fff4761d445 +[UIScene _sceneForFBSScene:create:withSession:connectionOptions:] + 1405
16 UIKitCore 0x00007fff4808f170 -[UIApplication _connectUISceneFromFBSScene:transitionContext:] + 1018
17 UIKitCore 0x00007fff4808f4b2 -[UIApplication workspace:didCreateScene:withTransitionContext:completion:] + 304
18 UIKitCore 0x00007fff47bfa7f5 -[UIApplicationSceneClientAgent scene:didInitializeWithEvent:completion:] + 361
19 FrontBoardServices 0x00007fff365d6165 -[FBSSceneImpl _callOutQueue_agent_didCreateWithTransitionContext:completion:] + 442
20 FrontBoardServices 0x00007fff365fc4d8 __86-[FBSWorkspaceScenesClient sceneID:createWithParameters:transitionContext:completion:]_block_invoke.154 + 102
21 FrontBoardServices 0x00007fff365e0c45 -[FBSWorkspace _calloutQueue_executeCalloutFromSource:withBlock:] + 220
22 FrontBoardServices 0x00007fff365fc169 __86-[FBSWorkspaceScenesClient sceneID:createWithParameters:transitionContext:completion:]_block_invoke + 355
23 libdispatch.dylib 0x0000000103b91d48 _dispatch_client_callout + 8
24 libdispatch.dylib 0x0000000103b94cb9 _dispatch_block_invoke_direct + 300
25 FrontBoardServices 0x00007fff3662237e __FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK__ + 30
26 FrontBoardServices 0x00007fff3662206c -[FBSSerialQueue _queue_performNextIfPossible] + 441
27 FrontBoardServices 0x00007fff3662257b -[FBSSerialQueue _performNextFromRunLoopSource] + 22
28 CoreFoundation 0x00007fff23bd4471 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
29 CoreFoundation 0x00007fff23bd439c __CFRunLoopDoSource0 + 76
30 CoreFoundation 0x00007fff23bd3bcc __CFRunLoopDoSources0 + 268
31 CoreFoundation 0x00007fff23bce87f __CFRunLoopRun + 1263
32 CoreFoundation 0x00007fff23bce066 CFRunLoopRunSpecific + 438
33 GraphicsServices 0x00007fff384c0bb0 GSEventRunModal + 65
34 UIKitCore 0x00007fff48092d4d UIApplicationMain + 1621
35 wvApp2 0x00000001038689bb main + 75
36 libdyld.dylib 0x00007fff5227ec25 start + 1
37 ??? 0x0000000000000001 0x0 + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)
This is the Output text from All Output Window. I think this will help to clear out all misunderstandings on this question. This output is from the Run of the app till the exception.
Recent Issues
Showing Recent Issues
Build target wvApp2 of project wvApp2 with configuration Debug
CompileStoryboard /Users/admin/DevSource/wvApp2/wvApp2/Base.lproj/Main.storyboard (in target 'wvApp2' from project 'wvApp2')
cd /Users/admin/DevSource/wvApp2
export XCODE_DEVELOPER_USR_PATH=/Applications/Xcode.app/Contents/Developer/usr/bin/..
/Applications/Xcode.app/Contents/Developer/usr/bin/ibtool --errors --warnings --notices --module wvApp2 --output-partial-info-plist /Users/admin/Library/Developer/Xcode/DerivedData/wvApp2-ehhbosgmbdwuucejiweipdfuqjzt/Build/Intermediates.noindex/wvApp2.build/Debug-iphonesimulator/wvApp2.build/Base.lproj/Main-SBPartialInfo.plist --auto-activate-custom-fonts --target-device iphone --target-device ipad --minimum-deployment-target 13.2 --output-format human-readable-text --compilation-directory /Users/admin/Library/Developer/Xcode/DerivedData/wvApp2-ehhbosgmbdwuucejiweipdfuqjzt/Build/Intermediates.noindex/wvApp2.build/Debug-iphonesimulator/wvApp2.build/Base.lproj /Users/admin/DevSource/wvApp2/wvApp2/Base.lproj/Main.storyboard
/* com.apple.ibtool.document.warnings */
/Users/admin/DevSource/wvApp2/wvApp2/Base.lproj/Main.storyboard:Bvy-8R-dSa: warning: UIWebView is deprecated since iOS 12.0 [7]
I don't know what I am doing wrong,
How can I solve this? Anyone answer is welcome.

Answer 1

First, you should better let variables start with a lowercase letter (and types with a uppercase). This is the kind-of-convetion in Swift (and Java and C++ and C and almost any other programming language except C#):
#IBOutlet var webView: WKWebView!
(change this using refactor in Xcode, to sync the storyboard/xib)
Then, don't use explicit unwrapping, better use if let:
if let url = URL(string: "www.google.com") {
let request = URLRequest(url: url)
webView.load(request)
}
To your exception: The only other thing (besides that the explicit url! unwrapping could fail) might be that the outlet webView is nil. You could also check this:
if (webView == nil) {
print ("Ooops")
}
If it's nil, check the connections from the storyboard/xib.

Answer 2

Make sure that you import webKit framework in your project target.
Target -> General -> Linked Framework and Libraries -> click on the + -> add the webKit.framwork
If you have done that and it's still not working please show more of the error message you are getting.
Also on a side note for naming convention you should not start class properties with uppercase.
Leading uppercase names are reserved for classes, this way you will always know if the code is referring to a class or a property. So in your case:
// #IBOutlet var WebView: WKWebView! change this to
#IBOutlet var webView: WKWebView!