Installation instructions don't mention arm64 architecture settings on target => linker errors

[David Dancy]

Installation instructions here: http://docs.couchbase.com/couchbase-lite/cbl-ios/#setting-up-the-initial-database.

On a stock standard Xcode 5 installation I followed them to the letter and ended up with linker errors.

ld: warning: ignoring file /Users/davidd/Documents/Projects/Objective-C/CouchTester/CouchTester/CouchbaseLite.framework/CouchbaseLite, missing required architecture arm64 in file /Users/davidd/Documents/Projects/Objective-C/CouchTester/CouchTester/CouchbaseLite.framework/CouchbaseLite (3 slices)
ld: warning: ignoring file /Users/davidd/Documents/Projects/Objective-C/CouchTester/CouchTester/CouchbaseLiteListener.framework/CouchbaseLiteListener, missing required architecture arm64 in file /Users/davidd/Documents/Projects/Objective-C/CouchTester/CouchTester/CouchbaseLiteListener.framework/CouchbaseLiteListener (3 slices)
Undefined symbols for architecture arm64:
  "_OBJC_CLASS_$_CBLManager", referenced from:
      objc-class-ref in CTAppDelegate.o
ld: symbol(s) not found for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

I'm a bit new to the whole idea, but I infer that the Couchbase Lite frameworks weren't compiled for arm64.

If I set Architectures/Architectures to "Standard Architectures (armv7, armv7s) and omit the arm64 support, the linker errors go away.

May I suggest adjusting either the compile settings in the project (to include arm64) or the documentation (to mention removing arm64 if it's been included by default)?

Thanks for an amazing framework - hope this helps to make it even better.

Cheers

David

[Amy Kurtzman]

Hi David,

i’m sorry you ran into trouble with this. As I understand it, the regular iOS build does not include a 64-bit ARM binary. You can find more information about that here: https://github.com/couchbase/couchbase-lite-ios/wiki/Building-Couchbase-Lite#64-bit-ios.

Were you adding Couchbase Lite to an existing project? I’m not sure why you encountered this problem, and am trying to get a better idea of the circumstances so I can update the document appropriately.

I’ll check with Jens tomorrow too. Thank you for letting me know about the issue with the documentation.

Best regards,

Amy

Always Scalable, Always On NoSQ

Amy Kurtzman Senior Technical Writer Phone: 650-417-7500 Email: a...@couchbase.com

From: David Dancy <david...@gmail.com>
Reply-To: "mobile-c...@googlegroups.com" <mobile-c...@googlegroups.com>
Date: Monday, December 2, 2013 at 8:51 PM
To: "mobile-c...@googlegroups.com" <mobile-c...@googlegroups.com>
Subject: Installation instructions don't mention arm64 architecture settings on target => linker errors

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[Jens Alfke]

On Dec 2, 2013, at 8:51 PM, David Dancy <david...@gmail.com> wrote:

Installation instructions here: http://docs.couchbase.com/couchbase-lite/cbl-ios/#setting-up-the-initial-database.
On a stock standard Xcode 5 installation I followed them to the letter and ended up with linker errors.

The documentation is for the beta 1 release, which came out shortly before Apple announced 64-bit support in iOS.

Beta 2 will ship with a 64-bit version of the framework. In the meantime you can check out and build the ‘stable’ branch of the Github repo using the instructions that Amy linked to.

—Jens

[David Dancy]

Amy,

Thanks for getting involved. To answer your question, I was adding CBL to a test project that I'm putting together to use in learning how to use it. I was able to work out the problem and fix it, but thought it might be helpful to have a note in the documentation about the build configuration. As Jens has pointed out though this is all likely to be resolved when Beta 2 ships.

Cheers

[David Dancy]

Great news, thanks!