Deleting derived data in XCode8 safely

Question

Claude31 OP

Created Jun ’17

Replies 2

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Views 5.5k

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I would like to try to completely clear derived data (I have problems with code signing, and I want to try this).

I did an option-clean, but that does not seem to delete derived data.

I found a way to access derived data :

- Project settings

- clicking on the arrow following derived data leadfs to thr common folder, which contains several files

- so I clicked on Advanced…

Then, under legacy, there are 2 paths for Products and Intermediates

Clicking on the arrow at the end leads to DerivedData/A_Program_name/Build/ Intermediates or Products

My questions :

what should I delete ?

- the full folder DerivedData/A_Program_name ? With folders : Build, Index, info.plist, Logs, scm.plist, TestIndex

the Build forlder DerivedData/A_Program_name/Build

- only DerivedData/A_Program_name/Build/ Intermediates or DerivedData/A_Program_name/Build/ Products

- or just some elements in these folders ?

Is there a risk deleting those files ?

Is it worth deleting derivedData for this code signing problem ?

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Answer 1

QuinceyMorris OP

Jun ’17

You can delete everything up to and including the immediate subfolder of DerivedData that belongs to your project. (But, make sure you close the project in Xcode first.)

It does no harm to try this. You'll just cause the project to be re-indexed the next time you open it, and fully rebuilt the next time you build it.

I very much doubt that it will solve code signing problems, though.

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Answer 2

KMT OP

Jun ’17

>s it worth deleting derivedData for this code signing problem ?

I would be surprised if it did, but you haven't described your exact code signing issue(s), so...

Open Keychain Access and confirm no expired and/or duplicate certificates. Delete any you find, restart your computer and try Xcode again.

Confirm your signing processes here: https://developer.apple.com/library/content/qa/qa1814/_index.html

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