ERROR “swiftc failed with exit code 1” when converting to latest syntax

Question

I was trying to convert syntax of old Swift project to new one as per few suggestion on Stack Overflow I tried converting it through Edit > Convert > To latest Synta

Answer 1

This issue is happening because of pods

So Follow the below steps to resolve this issue

• Remove all the pods and re-install again. Remove all the pods using below this command (rm -rf "pwd/Pods/")
• Quit the Xcode and open it again and build the app with device (generic iOS device).
• Now check this issue will be resolved.

Answer 2

I faced this issue while using the Swift auto-generated header file in my project (named as 'TargetName'-swift.h) to use Swift classes in Objective-C.

There was a typo in the file where I had imported this swift header. Correcting the typo helped me resolve the issue.

Answer 3

Try below if none of the above working for you.

My project location was desktop/my_project_folder

I tried all above then i made simple change.

I create one more folder on desktop past my project .

then...

Cause of problem in my case:

This problem occurred when i change my project name in xcode & project folder name from desktop.

Answer 4

For me, it was the keychainAccess problem as described in this answer (my error messages were completely opaque, all I had to go by was 'failed with exit code 1')

Answer 5

I was working on a private pod and was also pointing to it locally. I had made some file name changes.

Hence I was getting this error.

All I had to do was to run pod install so it would reflect the file name changes. After that it compiled.

Answer 6

Had the same issue but with duplicate file references. Deleting Derived Data and cleaning had no success. But I got it fixed by doing this:

Navigate to your project.pbxproj -> open with your text editor of choice(I use atom).

Command+F and find the duplicate file sources and then delete them.

Build/Run and should be fixed.