import of module 'glog.glog.log_severity' appears within namespace 'google'

[imRanjit]

Hello All,
I am running iOS project using react-native. I have installed pods, below is my Podfile

_source 'https://github.com/CocoaPods/Specs.git'
source 'https://github.com/goinstant/pods-specs-public'

target ‘appName’ do
platform :ios, '9.0'
use_modular_headers!

pod 'GoogleSignIn'
pod 'GoogleMaps'    

pod 'React', :path => './node_modules/react-native', :subspecs => [
'Core',
'RCTText',
'RCTImage',
'RCTNetwork',
'CxxBridge',
'RCTLinkingIOS',
'RCTWebSocket',
'RCTAnimation',
'DevSupport',
pod 'yoga', :path => './node_modules/react-native/ReactCommon/yoga'
post_install do |installer|
    installer.pods_project.targets.each do |target|
        phase_name = 'Headers'
        target.build_configurations.each do |config|
            config.build_settings['SWIFT_VERSION'] = '3.0'
        end
    end
end
pod 'ReactNativeLocalization", :path => './node_modules/react-native-localization'
pod 'BVLinearGradient', :path => './node_modules/react-native-linear-gradient'
pod 'DoubleConversion', :podspec => './node_modules/react-native/third-party-podspecs/DoubleConversion.podspec'
pod 'glog', :podspec => './node_modules/react-native/third-party-podspecs/glog.podspec'
pod 'Folly', :podspec => './node_modules/react-native/third-party-podspecs/Folly.podspec'

end_

So when I run my project, I get the above error. Please let me know how to fix this.

[sergiud]

What's a pod? How is your problem related to glog?

[imRanjit]

Hi @sergiud , pod is dependency manager used to install and update 3rd party dependencies. Its related to glog because, this error is happening in glog/logging.h file

[sergiud]

Please then provide a minimal example allowing to reproduce the problem, without pod.

[khloukrada]

I also have the same issue on line 512 of glog/logging.h
`namespace google {

// They need the definitions of integer types.
#include "glog/log_severity.h"
#include "glog/vlog_is_on.h"`
Is there any solution?

[amrita019]

@sergiud
As per mentioned in the docs
I added Folly in my podfile, and then this issue appeared in logging.h

[sergiud]

I'm neither familiar with Folly nor with pod. Please provide a reproducible standalone example showcasing the problem. Closing the issue until then.

[Legonaftik]

@imRanjit I have the same issue. Looks like it's required to include "use_frameworks!" in your Podfile for Swift projects to make React Native work.
Look in the docs: https://facebook.github.io/react-native/docs/integration-with-existing-apps
Switch between Objective-C and Swift guides and notice that "use_frameworks!" is stated for Swift but not for Objective-C.

So for now I have to use "use_frameworks!" and do not use "use_modular_headers!" which means to use dynamically linked frameworks instead of static ones :(

[makadaw]

Try to turn off module imports for this pods

pod 'DoubleConversion', :podspec => '../node_modules/react-native/third-party-podspecs/DoubleConversion.podspec', :modular_headers => false
pod 'glog', :podspec => '../node_modules/react-native/third-party-podspecs/glog.podspec', :modular_headers => false
pod 'Folly', :podspec => '../node_modules/react-native/third-party-podspecs/Folly.podspec', :modular_headers => false

[anutripa]

Is there a solution without using use_Frameworks!

[Teivaz]

@anutripa Try updating cocoapods.
I've checked this question on StackOverflow and checked my version of pods. In 1.5.3 I was still getting this error but after updating to 1.7.5 it is no longer required and you can remove use_frameworks! / use_modular_headers!

P.S. @sergiud sorry for hijacking this thread with seemingly unrelated issue. The point of failure was in the glog here where includes were inside the namespace. The swift <==> objC bridge was trying to generate "modular_headers" for that and chocked on that syntax which brought us all here. Hopefully this is not a problem any more.

[kovacs-tamas]

This issue is still exists, why did you close it?
i can't use the RN because i receive the following error message.

OS: 10.15 Beta (19A536g)
Xcode: 11.0 beta 5 (11M382q)
Toolchain: Swift 5.1 Snapshot 2019-07-25 (a)

React-Native: 0.60.5 (glog version in podspec file is 0.3.5)

[kovacs-tamas]

Other infos
Pod version: 1.8.0.beta.1

source 'https://github.com/CocoaPods/Specs.git'

platform :ios, '9.0'
use_frameworks!

target 'eportrait_sdk' do

  pod 'React', :path => '../../js/node_modules/react-native/'
  pod 'React-Core', :path => '../../js/node_modules/react-native/React'
  pod 'React-DevSupport', :path => '../../js/node_modules/react-native/React'
  pod 'React-RCTText', :path => '../../js/node_modules/react-native/Libraries/Text'
  pod 'React-RCTImage', :path => '../../js/node_modules/react-native/Libraries/Image'
  pod 'React-RCTNetwork', :path => '../../js/node_modules/react-native/Libraries/Network'
  pod 'React-RCTWebSocket', :path => '../../js/node_modules/react-native/Libraries/WebSocket'
  pod 'React-RCTLinking', :path => '../../js/node_modules/react-native/Libraries/LinkingIOS'
  pod 'React-RCTAnimation', :path => '../../js/node_modules/react-native/Libraries/NativeAnimation'
  pod 'React-RCTBlob', :path => '../../js/node_modules/react-native/Libraries/Blob'
  pod 'React-RCTLinking', :path => '../../js/node_modules/react-native/Libraries/LinkingIOS'
  pod 'React-RCTActionSheet', :path => '../../js/node_modules/react-native/Libraries/ActionSheetIOS'
  pod 'React-RCTSettings', :path => '../../js/node_modules/react-native/Libraries/Settings'
  pod 'React-RCTVibration', :path => '../../js/node_modules/react-native/Libraries/Vibration'
  pod 'React-cxxreact', :path => '../../js/node_modules/react-native/ReactCommon/cxxreact'
  pod 'React-jsi', :path => '../../js/node_modules/react-native/ReactCommon/jsi'
  pod 'React-jsiexecutor', :path => '../../js/node_modules/react-native/ReactCommon/jsiexecutor'
  pod 'React-jsinspector', :path => '../../js/node_modules/react-native/ReactCommon/jsinspector'

  pod 'DoubleConversion', :podspec => '../../js/node_modules/react-native/third-party-podspecs/DoubleConversion.podspec', :modular_headers => false
  pod 'glog', :podspec => '../../js/node_modules/react-native/third-party-podspecs/glog.podspec', :modular_headers => false
  pod 'Folly', :podspec => '../../js/node_modules/react-native/third-party-podspecs/Folly.podspec', :modular_headers => false

  pod 'yoga', :path => '../../js/node_modules/react-native/ReactCommon/yoga'
  pod 'react-native-camera', subspecs: ['RCT', 'RN'], path: '../../js/node_modules/react-native-camera'
  pod 'react-native-image-picker', :path => '../../js/node_modules/react-native-image-picker'
  pod 'rn-fetch-blob', :path => '../../js/node_modules/rn-fetch-blob'
  pod 'react-native-image-resizer', :path => '../../js/node_modules/react-native-image-resizer'
  pod 'react-native-orientation', :path => '../../js/node_modules/react-native-orientation'
  pod 'RNDeviceInfo', :path => '../../js/node_modules/react-native-device-info'
  pod 'RNGestureHandler', :path => '../../js/node_modules/react-native-gesture-handler'
end```

So, i tried everything what i found on the internet, but i think these steps don't change the original problem :)

[kovacs-tamas]

Is the glog prepared for Clang 11.0.0? I assume the problem can be a deprecated syntax, because i haven't faced with this issue before i upgraded to Catalina beta

[sagarjeu]

Add same in pod file
pod 'glog', :podspec => '../node_modules/react-native/third-party-podspecs/glog.podspec', :modular_headers => false
pod 'Folly', :podspec => '../node_modules/react-native/third-party-podspecs/Folly.podspec', :modular_headers => false
still issue

#include "glog/log_severity.h"
#include "glog/vlog_is_on.h"
logging file
errro: Import of module 'glog.glog.log_severity' appears within namespace 'google'

[sergiud]

I'm locking the discussion because the issue is clearly not in glog but rather is caused by the tools being used.