SDK Build Tools revision (23.0.1) is too low for project :react-native-keychain.

[oblador]

SDK Build Tools revision (23.0.1) is too low for project :react-native-keychain.

[SudoPlz]

Ok I found a solution to this.

For people facing the same problem in the future, here's what I did:

I added the following to my root build gradle android/build.gradle
(Not the android/app/build.gradle)

subprojects {
    afterEvaluate {project ->
        if (project.hasProperty("android")) {
            android {
                compileSdkVersion 25
                buildToolsVersion '25.0.0'
            }
        }
    }
}

That forces all the submodules to use the specified compileSdkVersion and buildToolsVersion.
Problem gone now.

[gigeos]

@SudoPlz Check your android/build.gradle I moved files from a project to an older and I haved to downgrade my build gradle version from 2.3.2 to 2.2.3

dependencies {
    // classpath 'com.android.tools.build:gradle:2.3.2' //before
    classpath 'com.android.tools.build:gradle:2.2.3' //to solve problem
}

[SudoPlz]

That's a good question @gungungun93.
The solution above is not ideal, but works.
Everyone should take a look at the libraries they're using, and find the lowest common denominator version to use for all projects.

It would be cool if someone wrote a script that checks the module name with a simple if clause, and allows people to manually define the version of each and every dependency individually.

I might do that myself, but I have zero time at the moment.

[Msspl-PrashenjeetRoy]

Will the future code look like this? The file path is android/build.gradle

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.3.3'
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        mavenLocal()
        jcenter()
        maven {
            // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
            url "$rootDir/../node_modules/react-native/android"
        }
    }
}

subprojects {
    afterEvaluate {project ->
        if (project.hasProperty("android")) {
            android {
                compileSdkVersion 25
                buildToolsVersion '25.0.0'
            }
        }
    }
}

[flaviocolonna]

If you have Android Studio, just import your project into the IDE, and then a warning about this error will be showed. Just click on the link "Update SDK". And it is solved without forcing any library to use a downgraded version of the SDK.

[sirawatGG]

@SudoPlz Thank you for sharing this solution for us
but I have a question if you don't mind. by following your solution, all packages which use compileSdkVersion lower than 25 will be forced to use 25. What if some packages are not compatible with the newer version? For instance, Facebook-login. Thank you.

[tomauty]

We've been clicking "Update build tools and rebuild" for like 15 libs on android studio for months now...haha. So, yes.

[Baburaomannepalli]

Ok I found a solution to this.

For so many peoples facing the same problem in the future, here's what I did:

I added the following to my root build gradle android/build.gradle
(Not the android/app/build.gradle)

subprojects {
afterEvaluate {project ->
if (project.hasProperty("android")) {
android {
compileSdkVersion 25 0r 26
buildToolsVersion '25.0.0'
}
}
}
}

its working good

[gulshanzealous]

saved the day ! Thanks.

[linrium]

Thank you very much @SudoPlz

[subhajitmondalglb]

@SudoPlz after I have added the lines to force the submodules to use the specified compileSdkVersion , the build problem is gone. But the application is showing message "unfortunately app has stopped". how would I solve it, has anyone faced this issue?

[SudoPlz]

Hmm, no, I didn't have any problems.
It could be that one of your modules requires an sdk version higher than 25.

[subhajitmondalglb]

@SudoPlz thanks for your quick reply.
Here are my dependencies:
"dependencies": {
"react": "16.0.0-alpha.12",
"react-native": "0.45.1",
"react-native-blur": "^3.1.2",
"react-native-google-places": "^2.1.0",
"react-native-keyboard-aware-scroll-view": "^0.2.9",
"react-native-vector-icons": "^4.2.0",
"react-navigation": "^1.0.0-beta.11"
},

So what can i do to ?

[SudoPlz]

Well I'd check each of those projects dependencies to see the minimum sdk they support.

i.e react-native-blur requires version 16 or higher so that's not the problem.

Just a suggestion.

[tomauty]

@SudoPlz you are a godsend

[SudoPlz]

No probs @tomauty I hope that helped :)

[SudoPlz]

@flaviocolonna That works if you're building locally, but not if your build is on a CI.

[sujitpk-perennial]

@SudoPlz Simply Awesome. You are a life saver for all

[SudoPlz]

No problem man, I'm glad this works for you.

[pravinraut809]

after i upgrade version to 25.0.2 , DEX error is coming ,