CODEWITHSUNDEEP
iosxcode
Kumar Utsav
Kumar Utsav

Reputation: 2841

Software caused connection abort. Error returned in reply:Connection invalid

My Xcode 9 gives the message to which I don't know how to respond. I want to run the app to my simulator, and I am getting this weird message. Attaching the snapshot for the same. enter image description here

Upvotes: 26

Views: 17505

Answers (9)

Solayman Rana
Solayman Rana

Reputation: 331

I faced the same issue. Quit Xcode and Restart Mac. This worked for me.

Upvotes: 0

Vishal Rajole
Vishal Rajole

Reputation: 1544

  • If you are using two versions of Xcode, remove one or quit all Xcode and simulators.
  • Go to preferences and Set proper version for command line tools
  • click on Derived Data, go to Derived data and delete that folder or simply use rm -rf ~/Library/Developer/Xcode/DerivedData
  • Click on Simulator reset content settings and just quit XCode and simulator and open clear and build the Xcode and run it.

Upvotes: 29

Jayprakash Dubey
Jayprakash Dubey

Reputation: 36447

It seems that there is error while Xcode is trying to connect with Simulator/Device in order to run app.

Screenshot 1

So there are multiple solution to this issue :

  1. Clean project (shortcut : cmd + shift + k) / Clean Build project (shortcut : cmd + shift + alt + k)

  2. Delete derived data content (Open Xcode preference using cmd + comma). Goto Location tab. In Derived Data section press on arrow symbol.

Screenshot 2

  1. Quit Xcode and Simulator

For me solution 3 worked!

Upvotes: 1

Conor
Conor

Reputation: 1777

You need to select the latest version of the command line tools in the preference pane.

  1. Xcode -> Preferences

  2. In the Locations tab change the Command Line Tool pop up to the latest version. enter image description here

  3. Restart Xcode and the Simulator

Upvotes: 0

Divya MG
Divya MG

Reputation: 51

This is because you have multiple versions of Xcode in your system. Just quit all the other versions of xcode and also the simulators. Restart the required version of Xcode and it should work.

Upvotes: 0

wheeliebin
wheeliebin

Reputation: 735

Swapping between 2 versions of Xcode (8.3.3 and 9 GM) gave me this problem in Xcode 9. Solved by Xcode->Preferences->Locations->Command Line Tools, set to Xcode 9. Needed to quit Xcode and the simulator, but it then worked.

Upvotes: 5

Sebastian
Sebastian

Reputation: 2339

Same error. For me running xcode-select helped:

sudo xcode-select -s /Applications/Xcode-beta.app/Contents/Developer/

Upvotes: 0

Piyush
Piyush

Reputation: 119

Restart Xcode & Simulator. delete the app from simulator make clean & try to deploy again. it works for me.

Upvotes: 2

Robert
Robert

Reputation: 3880

I had the same issue:

Try to: - kill simulator (force quit)

if it won't work, restart mac - it is funny but for me it worked

Upvotes: 2

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