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React Native on Android failed to find Build Tools

Posted by: admin November 29, 2017 Leave a comment

Questions:

What causes following problem? Is my Android SDK Version not supported?

Starting JS server...                                                                     
Building and installing the app on the device (cd android && gradlew.bat installDebug)...

FAILURE: Build failed with an exception.                                                  

* What went wrong:                                                                        
A problem occurred configuring project ':app'.                                            
> failed to find Build Tools revision 23.0.1       
Answers:

Probably you need to update your Build Tools.

I faced the problem when I tried to update from the graphic interface, it didn’t show the exact minor version, so I couldn’t update to it.

It was solved by looking at the available versions from the terminal with:

android list sdk -a

[...]
Packages available for installation or update: 156
1- Android SDK Tools, revision 24.4
2- Android SDK Platform-tools, revision 23.0.1
3- Android SDK Platform-tools, revision 23.1 rc1
4- Android SDK Build-tools, revision 23.0.1
[…]

And installing the right version with:

android update sdk -a -u -t 4

Questions:
Answers:

Just a note – it’s possible to get this error because the only version of the build tools you have installed is too new.

I got precisely the error that the OP got (complaining that react-native couldn’t find Build Tools revision 23.0.1). When I checked my Android SDK Manager, I saw this:

screenshot showing 23.0.2 "Installed" but 23.0.1 "Not installed"

I’d naively thought that installing the latest version of the Build-tools (23.0.2 at the time of writing) would work, but apparently not. Additionally installing 23.0.1 fixed the problem.

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Answers:

I also had problem with newer version of SDK Build tools (same as Mark) but I managed to resolve it with modification of android/app/build.gradle and setting proper version, e.g.

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.2"
...

UPDATE: As Mark suggested, it is wise only update minor (or patch) version in this way. Another reason why not to update this version is when you have plenty of 3rd party libs with native part – you might end up updating all of them. So you must weight possible benefits of newer version vs a bit more work.

Questions:
Answers:

Need modify 4 files

grep buildToolsVersion * -r | grep 23.0.1

Examples/Movies/android/app/build.gradle:    buildToolsVersion "23.0.2"
Examples/UIExplorer/android/app/build.gradle:    buildToolsVersion "23.0.2"
ReactAndroid/build.gradle:    buildToolsVersion "23.0.2"
local-cli/generator-android/templates/src/app/build.gradle:    buildToolsVersion "23.0.2"

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I to change the android project build.gradle to:

 compileSdkVersion 23
buildToolsVersion "23.0.3"

defaultConfig {
    applicationId "com.demoproject"
    minSdkVersion 16
    targetSdkVersion 23
    versionCode 1
    versionName "1.0"
    ndk {
        abiFilters "armeabi-v7a", "x86"
    }

Questions:
Answers:

It means that the Android Build Tools installed on your system is something else than in your app’s configuration file (your configuration file is pointing to 23.0.1) but you probably have 23, 24 or 25.0.* on your system.

The solution to fixing this problem is :

Edit the build.gradle file located under anroid/app in your project folder

Look for the entry buildToolsVersion “23.0.1”, and replace it with the latest version you have on your system.

You can find it here: C:\Program Files (x86)\Android\android-sdk\build-tools

OR to install the version you have in this file in your system (with SDK manager).

Good luck.

Questions:
Answers:

If you are having build tools version 24.0.1 then in the build.gradle update as buildToolsVersion "24.0.0"
In my Android/Sdk/build-tools/24.0.1/source.properties it had Pkg.Revision=24.0.0

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Find the version number in the /Users/username/Library/Android/sdk/build-tools directory, and then modify the version number of the buildToolsVersion corresponding to the gradle configuration

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I had this problem trying to build at the command line following react native’s documentation. I resolved this problem by opening the project in android studio. The mismatched dependencies will appear in the build failure snackbar at the bottom of the App. For each failure, click on the link to resolve the issue.

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From Android SDK manager v25 you have to install the correct build tools directly from Android Studio because the android command does not work anymore:

install from android studio