Flutter_blue: Installation failed on osx

[ssarangi]

On installation I get the following message and the installation fails. The protoc compiler is not found...

* /Users/satyajits/dev/flutter/bluetooth_example/Pods/!ProtoCompiler/protoc --objc_out=gen --proto_path=../protos ../protos/.proto**

However, the correct path is /Users/satyajits/dev/flutter/bluetooth_example/ios/Pods/!ProtoCompiler/protoc

The difference is that the installation happens inside the ios folder of the flutter directory but somehow it is looking in the parent directory.

Launching lib/main.dart on iPhone X in debug mode...
Warning: CocoaPods recommended version 1.5.0 or greater not installed.
Pods handling may fail on some projects involving plugins.
To upgrade:
brew upgrade cocoapods
pod setup

Running pod install...
CocoaPods' output:
↳
Preparing

Analyzing dependencies

Inspecting targets to integrate
  Using `ARCHS` setting to build architectures of target `Pods-Runner`: (``)

Fetching external sources
-> Fetching podspec for `Flutter` from `.symlinks/flutter/ios`
-> Fetching podspec for `flutter_blue` from `.symlinks/plugins/flutter_blue/ios`

Resolving dependencies of `Podfile`

Comparing resolved specification to the sandbox manifest
  A !ProtoCompiler
  A Flutter
  A Protobuf
  A flutter_blue

Downloading dependencies

-> Installing !ProtoCompiler (3.5.0)
  > Copying !ProtoCompiler from `/Users/satyajits/Library/Caches/CocoaPods/Pods/Release/!ProtoCompiler/3.5.0-3e9dc` to `Pods/!ProtoCompiler`

-> Installing Flutter (1.0.0)

-> Installing Protobuf (3.6.0)
  > Copying Protobuf from `/Users/satyajits/Library/Caches/CocoaPods/Pods/Release/Protobuf/3.6.0-0fc0a` to `Pods/Protobuf`

-> Installing flutter_blue (0.0.1)
 > Running prepare command
   $ /bin/bash -c  set -e mkdir -p gen /Users/satyajits/dev/flutter/bluetooth_example/Pods/!ProtoCompiler/protoc         --objc_out=gen         --proto_path=../protos         ../protos/*.proto
[!] /bin/bash -c 
set -e
mkdir -p gen
/Users/satyajits/dev/flutter/bluetooth_example/Pods/!ProtoCompiler/protoc         --objc_out=gen         --proto_path=../protos         ../protos/*.proto

/bin/bash: line 3: /Users/satyajits/dev/flutter/bluetooth_example/Pods/!ProtoCompiler/protoc: No such file or directory

/Library/Ruby/Gems/2.3.0/gems/cocoapods-1.4.0/lib/cocoapods/executable.rb:69:in `execute_command'
/Library/Ruby/Gems/2.3.0/gems/cocoapods-1.4.0/lib/cocoapods/executable.rb:27:in `block in executable'
/Library/Ruby/Gems/2.3.0/gems/cocoapods-1.4.0/lib/cocoapods/installer/pod_source_preparer.rb:66:in `block (2 levels) in run_prepare_command'
/Library/Ruby/Gems/2.3.0/gems/cocoapods-1.4.0/lib/cocoapods/installer/pod_source_preparer.rb:60:in `chdir'
/Library/Ruby/Gems/2.3.0/gems/cocoapods-1.4.0/lib/cocoapods/installer/pod_source_preparer.rb:60:in `block in run_prepare_command'
/Library/Ruby/Gems/2.3.0/gems/cocoapods-1.4.0/lib/cocoapods/user_interface.rb:64:in `section'
/Library/Ruby/Gems/2.3.0/gems/cocoapods-1.4.0/lib/cocoapods/installer/pod_source_preparer.rb:59:in `run_prepare_command'
/Library/Ruby/Gems/2.3.0/gems/cocoapods-1.4.0/lib/cocoapods/installer/pod_source_preparer.rb:37:in `prepare!'
/Library/Ruby/Gems/2.3.0/gems/cocoapods-1.4.0/lib/cocoapods/installer/pod_source_installer.rb:61:in `install!'
/Library/Ruby/Gems/2.3.0/gems/cocoapods-1.4.0/lib/cocoapods/installer.rb:365:in `install_source_of_pod'
/Library/Ruby/Gems/2.3.0/gems/cocoapods-1.4.0/lib/cocoapods/installer.rb:330:in `block (2 levels) in install_pod_sources'
/Library/Ruby/Gems/2.3.0/gems/cocoapods-1.4.0/lib/cocoapods/user_interface.rb:85:in `titled_section'
/Library/Ruby/Gems/2.3.0/gems/cocoapods-1.4.0/lib/cocoapods/installer.rb:329:in `block in install_pod_sources'
/Library/Ruby/Gems/2.3.0/gems/cocoapods-1.4.0/lib/cocoapods/installer.rb:321:in `each'
/Library/Ruby/Gems/2.3.0/gems/cocoapods-1.4.0/lib/cocoapods/installer.rb:321:in `install_pod_sources'
/Library/Ruby/Gems/2.3.0/gems/cocoapods-1.4.0/lib/cocoapods/installer.rb:164:in `block in download_dependencies'
/Library/Ruby/Gems/2.3.0/gems/cocoapods-1.4.0/lib/cocoapods/user_interface.rb:64:in `section'
/Library/Ruby/Gems/2.3.0/gems/cocoapods-1.4.0/lib/cocoapods/installer.rb:162:in `download_dependencies'
/Library/Ruby/Gems/2.3.0/gems/cocoapods-1.4.0/lib/cocoapods/installer.rb:117:in `install!'
/Library/Ruby/Gems/2.3.0/gems/cocoapods-1.4.0/lib/cocoapods/command/install.rb:41:in `run'
/Library/Ruby/Gems/2.3.0/gems/claide-1.0.2/lib/claide/command.rb:334:in `run'
/Library/Ruby/Gems/2.3.0/gems/cocoapods-1.4.0/lib/cocoapods/command.rb:52:in `run'
/Library/Ruby/Gems/2.3.0/gems/cocoapods-1.4.0/bin/pod:55:in `<top (required)>'
/usr/local/bin/pod:22:in `load'
/usr/local/bin/pod:22:in `<main>'

Error output from CocoaPods:
↳
/bin/bash: line 3: /Users/satyajits/dev/flutter/bluetooth_example/Pods/!ProtoCompiler/protoc: No such file or directory

[!] `<PBXGroup UUID=`97C146E51CF9000F007C117D`>` attempted to initialize an object with an unknown UUID. `CF3B75C9A7D2FA2A4C99F110` for attribute: `children`. This can be the result of a merge and  the unknown UUID is being discarded.

Error running pod install
Error launching application on iPhone X.

[NaelAwayes]

Experiencing the same issue.

Did Step 1 from #40 without any result. Doing step 2 enables me to build the app on Xcode, but flutter run still fails.

[psycura]

Somebody solved this?

[NaelAwayes]

@psycura check the last commit on https://github.com/pauldemarco/flutter_blue/pull/89

Fixed it for me.

[psycura]

@NaelAwayes How can i get the updated version of the plugin?
I still see only 0.4.1 version in the store

[NaelAwayes]

Hey,

It hasn’t been merged (yet ?) so you will have to fix it locally after downloading the most recent version.

[pauldemarco]

Hi everyone,

I've tested in xcode 9.4 and just updated to 10.1, and I am unable to reproduce this issue.
Please try with the latest version of FlutterBlue 0.4.2 and report back your results.

[bradselw]

This is still an issue for me on 0.4.2.

[bradselw]

Note, copying the flutter_blue repo into my project's repo and applying #89 fixed the issue for me. I would prefer not to maintain a fork of the flutter_blue repo - what is the hold up on merging #89?

[bsheen]

As per @bradselw comment above, any chance we can get #89 merged in?

[Andy1984]

I am always using 0.5.0. It did not happen at the beginning, but it happens now. I do not know why and how to fix this. It looks like pwd is not always correct?

[bsheen]

@Andy1984 this issue is fixed in this PR

[bobdeng]

modify flutter_blue/ios/flutter_blue.podspec
change protoc = ENV['PWD'] + 'Pods/!ProtoCompiler/protoc'
to protoc = ENV['PWD'] + '/ios/Pods/!ProtoCompiler/protoc'

works for me

[Gollor]

A very simply work-around is to execute ln -s ios/Pods Pods in the project root. This would link Pods/ folder to the working directory so the ios/ could be omitted.

[ch-bitrise]

@Gollor are you able to confirm this PR

@pauldemarco has indicated he'll merge this in should he get some confirmation. The fix should resolve this for all.

[Dalmangyi]

Thx @Gollor !! solved.

[0x77dev]

A very simply work-around is to execute ln -s ios/Pods Pods in the project root. This would link Pods/ folder to the working directory so the ios/ could be omitted.

Thank you very much!

[pauldemarco]

This should be resolved in the latest version 0.6.3

If everyone could give it a shot and let me know, we might be able to squash this!

[pauldemarco]

Protoc is no longer a dependency as the files are pre-generated.
This should no longer be an issue.