Flutter not building iOS application, is it a swift error? - swift

Question

I'm not longer able to build an iOS app with XCode, even a brand new flutter application will not run.
Here's the version of Android Studio:
Android Studio 3.1.4
Build #AI-173.4907809, built on July 23, 2018
JRE: 1.8.0_152-release-1024-b01 x86_64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
Mac OS X 10.13.6
Here's the version of XCode:
Version 9.4.1 (9F2000)
I get the following error:
Launching lib/main.dart on Andrea's iPad in debug mode...
Automatically signing iOS for device deployment using specified development team in Xcode project: XG2RLBENW5
Starting Xcode build...
Xcode build done.
Failed to build iOS app
Error output from Xcode build:
↳
2018-09-15 15:56:05.469 xcodebuild[39750:2818902] DVTAssertions: Warning in /Library/Caches/com.apple.xbs/Sources/IDEXcode3ProjectSupport/IDEXcode3ProjectSupport-14098/Xcode3Core/LegacyProjects/Frameworks/DevToolsCore/DevToolsCore/BuildSystem/Runtime/PBXTargetBuildContext.mm:757
Details: unexpected successful exit code from cancelled command
Object:
Method: -createCommandInvocationRecordFromInvocation:
Thread: {number = 9, name = (null)}
Please file a bug at http://bugreport.apple.com with this warning message and any useful information you can provide.
** BUILD FAILED **
Xcode's output:
↳
=== BUILD TARGET Runner OF PROJECT Runner WITH CONFIGURATION Debug ===
The use of Swift 3 #objc inference in Swift 4 mode is deprecated. Please address deprecated #objc inference warnings, test your code with “Use of deprecated Swift 3 #objc inference” logging enabled, and then disable inference by changing the "Swift 3 #objc Inference" build setting to "Default" for the "Runner" target.
The use of Swift 3 #objc inference in Swift 4 mode is deprecated. Please address deprecated #objc inference warnings, test your code with “Use of deprecated Swift 3 #objc inference” logging enabled, and then disable inference by changing the "Swift 3 #objc Inference" build setting to "Default" for the "Runner" target.
=== BUILD TARGET Runner OF PROJECT Runner WITH CONFIGURATION Debug ===
/Users/pbirdsall/Documents/highline/LeverageGoogleServersPlist/GoogleService-Info.plist:0: error: reading data: The file “GoogleService-Info.plist” couldn’t be opened because there is no such file.
Could not build the precompiled application for the device.
Error launching application on Andrea's iPad.

Answer 1

The error is saying:
"An App ID with Identifier 'com.test.flutterApp' is not available.
Please enter a different string"
You need a different bundle id for your project as com.test.flutterApp may be registered under different Apple ID. Change it to anything unique and try to run it
EDIT
The new error says: GoogleService-Info.plist couldn't be found at
/Users/pbirdsall/Documents/highline/LeverageGoogleServersPlist/GoogleService-Info.plist
Make sure you have the plist file.