Incompatible SDK Expo - sdk

I am getting an incompatible SDK error. Here are images of my emulator, my package.json. I have tried going back to previous versions of the codes and uninstalling and re-installing everything. I don't know exactly why I got the error. Please help me.
I am trying to use expo go to debug the app and hopefully solve the sdk incompatibility problem and understand the error.

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Build fails when archiving React Native App in Xcode

My build fails when attempting to archive my react native project in Xcode. The following appears when trying to archive:
Does anyone know what may be causing this error? I have tried editing the run script in 'Bundle React Native code and images' to the below as suggested by the link https://github.com/facebook/react-native/issues/3935:
. ~/.nvm/nvm.sh
../node_modules/react-native/scripts/react-native-xcode.sh
However, I'm still getting the same error. Can someone please advise? I'm really stuck here.
Thanks.

Flutter 1.17.1 update problems on iOS

After I update Flutter to the version 1.17.1 and Dart to 2.8.1 I started to get this following error on iOS:
io.flutter.1.raster (8): EXC_BAD_ACCESS (code=1, address=0x0)
I tried to change the channel to master and do a flutter clean, but that didn't work. I also tried to use some of the other versions of flutter that are on the dev channel but I keep getting the same error. The only way I can successfully run my app is downgrading to flutter version 1.12.13+hotfix.9 that I was previously using. My Xcode is also updated to the latest version, 11.4.1.
Anyone else is having this problem and/or know how to fix it?
So the problem was the same as the link posted in the comments by MyrackeDesign. The extension for iOS, FlutterViewController, caused the problem, when I removed it, the app ran normally.

Swifty json error when i run the app on my mobile devise after update Xcode

I have updated the Xcode to the latest version (7.3). and my mobile OS (9.3). I am using carthage and updated libraries also.
I could run my project in Xcode simulator without error. but when i try to run the project on my mobile devise it gives a JSON error.
Simulator version also 9.3
Use of undeclared type 'JSON'
Simulator version also 9.3
I could not find a source to solve this problem. so please help me to solve this.

Getting dyld: Symbol not found: _AWSSignatureV4Algorithm

I have updated my AWS SDK to 2.2.5 through Cocoapods and received the following error when the app is launching on the device
dyld: Symbol not found: _AWSSignatureV4Algorithm
I am really not sure where to start to fix, according to the docs this should be handled within the SDK.
I bumped it back down to 2.2.2 and it works fine.
Any help or a point in the right direction would be very much appreciated.
It seems like you updated the service SDK to 2.2.5, but AWSCore is still 2.2.2. See Update the SDK to a Newer Version for more details on how to update the SDK.

Cydia app installation problems

I have been hosting my app on a cydia repository for quite some time, and haven't had any problems hosting the app for iOS 5 or iOS 6. However, when I upgraded one of my devices to iOS 7, and tried to install the app it gave me some errors during the installation.
The erros I am getting are,
subprocess dpkg-deb --fsys-tarfile returned error exit status 2
Sub-process /usr/bin/dpkg returned an error code (1)
I've tried googling the errors, but haven't had much luck, and I just reread saurik's post about building a .deb file and creating a cydia repository, here I am still not sure why the package / .deb file would work in iOS 6 but then stop working in iOS 7.
I even created a simple test app with just button in it using Xcode 5, and that simple test app is giving me the same errors as stated above.
Apparently there's some compatibility issues with dpkg, Cydia, and the homebrew release of dpkg. I ended up finding this, which solved the install problem. :)
this error mostly happen if you are using new SDK that has not been jailbroken yet, if you are using Xcode with new SDK you should download older Xcode with SDK that has been jailbroken, then you can compile an app that will load normally.

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