cvc-complex-type.2.4.a: Invalid content was found starting with element 'base-extension'. One of '{layoutlib}' is expected

user_14333699 0
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I am facing this issue many times when i download project from github i am using new Android studio(bumble bee) please help me if any body knows

https://github.com/fjbatresv/arcore_solar_system.git (this is the project which i am downloading in bumble bee)

There are not any gradle issue

actually i have tried many solutions from stack over flow but i am getting solutions for gradle but it is not an gradle related error.

gradle-plugin android-gradle-plugin augmented-reality build.gradle android
6 Answers

Upgrade your com.android.tools.build:gradle in your build.gradle file to the latest version

e.g.

classpath 'com.android.tools.build:gradle:7.0.3'

And upgrade your gradle-wrapper.properties to the latest version i.e.

#Tue Apr 12 23:39:17 AEST 2022
distributionBase=GRADLE_USER_HOME
distributionUrl=https\://services.gradle.org/distributions/gradle-7.0.2-bin.zip
distributionPath=wrapper/dists
zipStorePath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME

Optionally, you can upgrade it using Project-Structure UI

enter image description here

user_32864890

I was facing same issue and solved it with following changes

In File -> Project Structure, set Android Gradle Plugin Version 7.0.3 And Gradle Version 7.0.2.

user_191121660

I also faced similar issue. cvc-complex-type.2.4.a: Invalid content was found starting with element 'base-extension'. One of '{layoutlib}' is expected. Finally i was able to fix this issue, by Go To File>>Settings>>Build, Execution, Deployment>Build Tools And I am enable "Reload project after changes in the build scripts">Any changes after this Appeared new Error "Add Google maven repository" I add Google maven repository to build.gradle and project worked without any errors enter image description here

user_188817140

For me I resolved by

Go to File > Project Structure > SDK Location > Gradle Settings.

Check there Gradle JDK, try changing it and then sync again.

solution

user_68915630

I solved the problem after digging into the source code and some experiments.

Android SDK configuration file ~/Library/Android/sdk/platforms/android-32/package.xml has an extra tag named base-extension compared to the same file of other API levels. Removing this tag solves the problem.

Delete downloaded Android API 32 SDK Platform from SDK Manager (Tools ā†’ SDK Manager) also solves the problem (you can redownload after deletion). Maybe the Android studio team noticed the problem, redownloading API 32 platform files, the base-extension tag disappeared from the API 32 package.xml

the extra tag in android-32/package.xml (after format the file)

ā†‘ the extra tag in android-32/package.xml (after formatting the file)

user_26193240

Upgrade your Android Gradle plugin version to 4.0.1 or higher in the project build.gradle file

buildscript {
    dependencies {
        classpath("com.android.tools.build:gradle:4.0.1")
        ...
    }
}

Upgrade the Gradle version to 6.5 or higher in the gradle-wrapper.properties file.

distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-all.zip
user_71038820
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