Cannot import Firebase in Swift app

Question

In attempting to learn Firebase, I followed the steps in the IOS Quickstart section of the Firebase website. I use Cocoapods and followed the steps exactly as documented. However, "import Firebase" results in a compiler error. I don't see the Framework any where but I do see the Firebase objective C files.. . By following the manual process of downloading the zip file and adding it to the project I can make it work. However, I would like to understand what I am doing wrong.

score 17 · Answer 1 · answered Nov 11 '16 at 17:15

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Documentation is outdated. I've used:

import FirebaseCore

answered Nov 11 '16 at 17:15

MCMatan

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score 10 · Accepted Answer · answered Dec 26 '15 at 19:25

10

You shouldn't need to use a Bridging Header.

The Firebase SDK uses Swift module mapping, so you'll have to let CocoaPods know.

Use this podfile:

use_frameworks! # this allows you to use import Firebase
pod 'Firebase', '>= 2.5.0'

Then you should be able to use import Firebase in any Swift file.

Sometimes after opening from CocoaPods install, XCode can get confused. Do a Cmd+K to clean and a Cmd+Shift+R to rebuild. If that still is giving you errors, then restart Xcode and try the clean and build again.

answered Dec 26 '15 at 19:25

David East

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Hey David - that's fine but seems not to be documented. https://www.firebase.com/docs/ios/quickstart.html – Darko Dec 26 '15 at 20:33
You're right, it should be in the docs. The module mapping is a newer addition so it hasn't made its way there yet. – David East Dec 26 '15 at 20:42
Hi David: I have the two commands as shown. I also used the 'Clean' command and restarted. But could not make it work. – Syed Tariq Dec 27 '15 at 05:13
In the tutorial (link in my comment) the reference to Firebase is implied. I do not see any 'import Firebase' anywhere is the code but the class is used. – Syed Tariq Dec 27 '15 at 05:16
Hi David: I was wrong regarding installation using Cocoapods. I opened the .xcworkspace from the console and did a 'Clean' and 'Build' as you suggested. Then 'import Firebase' did not issue a compile error. So essentially your answer is correct. Thhank you. – Syed Tariq Dec 27 '15 at 06:00

score 9 · Answer 3 · answered Jun 22 '17 at 00:38

9

import FirebaseCore

and
FirebaseApp.configure()
These are the new documented injections into FireBase in Swift, rather than what you were using. Good day, sir.

answered Jun 22 '17 at 00:38

Harris B

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score 2 · Answer 4 · answered Dec 26 '15 at 05:53

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You need to create an ObjC bridging header. There are many SO tutorials about that.

answered Dec 26 '15 at 05:53

Darko

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I included a bridging header but I am still getting an error. In a tutorial https://github.com/scotteg/Grocr/blob/master/Grocr/AppDelegate.swift I noticed that there is NO import to Firebase but there is a reference to the class. What else could I be missing? I am carefully looking at the code. – Syed Tariq Dec 26 '15 at 06:12
Which ObjC bridging header tutorial did you follow? – Darko Dec 26 '15 at 06:13
The header has to be added to build settings. – Darko Dec 26 '15 at 06:14
@Darko if there are many StackOverflow questions about it, can you link to one? – Frank van Puffelen Dec 26 '15 at 14:44
@Darko a bridging header shouldn't be needed. – David East Dec 26 '15 at 15:56
@David I know no other way to do it. You? – Darko Dec 26 '15 at 16:19
@FrankvanPuffelen just search SO for "objective c bridging header" – Darko Dec 26 '15 at 16:20
@Dark, see my answer. – David East Dec 26 '15 at 19:25

score 1 · Answer 5 · answered May 05 '16 at 01:13

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So I was having the same problem. Right now the fix is very simple, before you type import Firebase, after following the instructions, simply build your project. i.e. cmd+b, this did it for me, before doing this it does not recognize the path, no need to change the path!

answered May 05 '16 at 01:13

dherre3

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Thanks @dherre3. After hours of attempting to get this to work, your simple procedure worked for me. – Alan Cabrera Nov 06 '16 at 16:44

score 1 · Answer 6 · answered Jul 20 '16 at 04:33

I got the same problem. and i try to execute these code below in terminal, then it works for me. After change your pod file with pod 'Firebase'. Go to terminal:

$ cd yourSource
$ pod install
$ pod repo update

waiting it update for about 5 minutes. Then calling update pod

$ pod update

it will update Firebase and install some parts are lacked I think it has something wrong about the version because i saw it installed ver 2.5 and when i called pod update, i was seeing it was installing ver 3.0

score 0 · Answer 7 · answered Dec 02 '18 at 19:12

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Make sure you launched the project from "your_project_name.xcworkspace" file, instead of "your_project_name.xcodeproj" file. If not, your project won't find firebase.

answered Dec 02 '18 at 19:12

hafiz031

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Cannot import Firebase in Swift app

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