无法将Firebase导入Swift类-CannotImportFirebaseIntoSwiftClass

15  

There are two ways to install Firebase: manually, and with CocoaPods.

有两种方法可以安装Firebase：手动和CocoaPods。

I recommend using CocoaPods. In your Podfile, make sure you specify !use_frameworks:

我建议使用CocoaPods。在您的Podfile中，请确保指定！use_frameworks：

platform :ios, "9.0"
use_frameworks!

target 'MyProject' do
 pod 'Firebase'
end

Then after you pod install and open the MyProject.xcworkspace, you should be able to use import Firebase.

然后在您安装pod并打开MyProject.xcworkspace后，您应该可以使用导入Firebase。

edit by Jay:

杰伊编辑：

If you are targeting OS X your pod file may look more like this

如果您的目标是OS X，则您的pod文件可能看起来更像这样

platform :osx, '10.10'
use_frameworks!

target 'MyProject' do
  pod 'FirebaseOSX', '>= 2.4.2'
end

31  

For me it was this:

对我来说就是这样：

The Framework is called FirebaseAnalytics now and not Firebase.

该框架现在称为FirebaseAnalytics而不是Firebase。

The official documentation even has this wrong.

官方文档甚至有这个错误。

So after installing with CocoaPods (Firebase version 3.4.0) this works:

因此，在使用CocoaPods（Firebase版本3.4.0）安装后，这可以：

import FirebaseAnalytics

5  

If you imported Firebase manually, update Framework Search Paths and Header Search Paths under your target's Build Settings so they include the Firebase frameworks.

如果您手动导入Firebase，请在目标的Build Settings下更新Framework Search Paths和Header Search Paths，以便它们包含Firebase框架。

2  

If you have added the firebase framework manually, delete it and add it again.Rebuild the project and it will work.

如果您已手动添加了firebase框架，请将其删除并再次添加。重建项目即可。

There seems to be a bug.This happens when you discard the changes.

似乎有一个错误。当您放弃更改时会发生这种情况。

2  

When using the CocoaPods installation method, you can start by removing the project workspace file:
rm -rf MyProject.xcworkspace

使用CocoaPods安装方法时，可以先删除项目工作区文件：rm -rf MyProject.xcworkspace

Then, edit the Podfile to following, which will be automatically set for the latest version of Firebase:

然后，将Podfile编辑为以下内容，将自动为最新版本的Firebase设置：

use_frameworks! 
target 'MyProject' do
  pod 'Firebase/Core'
  pod 'Firebase/Database'
end

target 'MyProjectUITests' do
  pod 'Firebase/Core'
  pod 'Firebase/Database'
end

Finally, reinstall the pod

最后，重新安装pod

pod install

1  

For me, I had to make sure that cocoapods was updated to version 1.0.0.

对我来说，我必须确保cocoapods已更新到版本1.0.0。

Just run sudo gem install cocoapods, then clean project and pod install. Compiler should not complain anymore.

只需运行sudo gem install cocoapods，然后清理项目和pod安装。编译器不应再抱怨了。

0  

For me, I found that I wrote the line : (pod 'Firebase') in the wrong line in the pod file. you only need to find the comment : # Pods for projectName and then replace it with pods like: pod 'Firebase' or : pod 'Firebase/Auth'

对我来说，我发现我在pod文件的错误行中写了一行:( pod'Firebase'）。你只需要找到评论：#Pods为projectName然后用pods替换它们：pod'Firebase'或：pod'Firebase / Auth'

0  

1. open terminal and type cd "drag and drop your project" Enter
2. 打开终端并输入cd“拖放你的项目”回车
3. type "pod init"
4. 输入“pod init”
5. open pod file with xcode
6. 用xcode打开pod文件
7. under use_frameworks! type pod 'Firebase' pod 'Firebase/xxx'
8. 在use_frameworks下！输入pod'Firebase'pod'Firebase / xxx'
9. back to terminal and type "pod install" 6.open your project folder and run xxx.xcworkspace
10. 返回终端并键入“pod install”6.打开项目文件夹并运行xxx.xcworkspace

0  

In your Podfile make sure to have pod 'Firebase' in addition to your pod 'Firebase/Core' After, :wq from vim and run a command pod update. Make sure to open .xcworkspace

在你的Podfile中，确保除了你的pod'Firebase / Core'之后还有pod'Firebase'，之后：来自vim的wq并运行命令pod更新。确保打开.xcworkspace

0  

So after spending hours and hours trying to fix this error I did the following and my life went back to normal

所以在花了几个小时试图修复这个错误后，我做了以下事情，我的生活恢复了正常

a) Went to my Podfile and changed pod 'Firebase', '~> 4.8' to pod 'Firebase/Core'

a）去我的Podfile并将pod'Firebase'，'〜> 4.8'更改为pod'Firebase / Core'

b) Then I went into my AppDdelegate changed from import Firebase to import FirebaseCore

b）然后我进入我的AppDdelegate，从导入Firebase更改为导入FirebaseCore

If you were facing the same problem as me this solution will work for you

如果您遇到与我相同的问题，此解决方案将适合您