ARC conversion tool fails but no errors listed

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Created Apr ’22

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Hi all, I am trying to enable ARC on a project that was started by someone else a long time ago. When I selected Edit->Convert to Objective-C ARC I got a large number of errors which I eventually fixed.

But now when I run the converter, I get the message that Xcode found 1 issue that prevents conversion from succeeding, but there are no errors displayed. I have a few warnings, but these are related to XIB files and digital signatures, rather than anything ARC-related.

If the issue is one of the warnings, I don't know which one. There is no warning that stands out as different from the others. So I am at a loss as to how to find out what this issue actually is, and how to fix it.

Any ideas much appreciated.

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Answer 1

Claude31 OP

Apr ’22

Could this old tutorial provide some insight ?

https://objectpartners.com/2013/07/17/converting-an-ios-project-to-use-arc-automatic-reference-counting/

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Answer 2

mcgddd OP

Apr ’22

Ok so in case this bites anyone else, it turns out it was a Post-Action that was returning a non-zero exit code. It seems that this was not causing builds to fail, only the conversion. So I did get to do the conversion after fixing that.

Unfortunately the conversion left out some files for reasons best known to itself, so I still have hundreds of calls to release, retain and autorelease to manually remove.

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