Invalid content was found starting with element ошибка

asked Mar 6, 2015 at 11:19

NatashaNatasha

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Sumit KumarSumit Kumar

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XstianXstian

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Is anyone else seeing this issue? I’ve never seen it before…

I am getting this error while building the project

cvc-complex-type.2.4.a: Invalid content was found starting with element ‘base-extension’. One of ‘{codename, tag}’ is expected.

Hi @Anasmirza20 did you get any update on how to solve this issue

Hello guys I am also facing the same error during gradle sync.

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

I am having this issue too!

Android Studio Bumblebee | 2021.1.1 Patch 1
Build #AI-211.7628.21.2111.8139111, built on February 1, 2022
Runtime version: 11.0.11+0-b60-7590822 x86_64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
macOS 12.2
GC: G1 Young Generation, G1 Old Generation
Memory: 1280M
Cores: 8
Registry: external.system.auto.import.disabled=true
Non-Bundled Plugins: org.jetbrains.kotlin (211-1.6.10-release-923-AS7442.40)

Same issue here:

Android Studio: Bumblebee | 2021.1.1
macOS: 12.0
chip: apple M1
Gradle JDK: 1.8.0_321

Hi, I’m getting this error while building project. Anyone here who solved that?

cvc-complex-type.2.4.a: Invalid content was found starting with element ‘base-extension’. One of ‘{codename, tag}’ is expected.

JDK: 1.8
Android Studio Version Bumblebee 2021.1.1

I’m not seeing this. We are going to be replacing the gradle build system with bazel and will update all our dependencies etc. at the same time so it should be fixed then.

I’ll leave this issue open until then in case someone else figures it out

I was running into this same error. What fixed it for me was making sure the Gradle JDK was pointing to the right JDK (in my case JDK 1.8). File > Project Structure > SDK Location > Gradle Settings (Link)

facing the same issue.
i7 6700k
2021.01.01 Bumblebee

to fix this issue simply reset your ide settings
File — Manage IDE Settings — Restore Default Settings

hey guys i have same eror here anybody already fix this error can you share in here thanks you

I ended up fixing this by upgrading Gradle to the latest version (and modify my current source code accordingly)

I am also facing the same issue.
cvc-complex-type.2.4.a: Invalid content was found starting with element ‘base-extension’. One of ‘{layoutlib}’ is expected.

My build version was
Android Studio Arctic Fox | 2020.3.1 Patch 4

I updated to version — Android Studio Bumblebee | 2021.1.1 Patch 1. Still issue exists. Any help is much appreciated.

Hello
Anyone have solution for this??

———————ISSUE———————-

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

I’m facing this issue in
JDK: 1.8
Android Studio Version Bumblebee 2021.1.1

Hello all,
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 updating Android Gradle Plugin Version and Gradle Version.

Android Studio Configuration:
Android Studio Bumblebee | 2021.1.1 Patch 1
JDK: 1.8

Hello all, 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 updating Android Gradle Plugin Version and Gradle Version.

Android Studio Configuration: Android Studio Bumblebee | 2021.1.1 Patch 1 JDK: 1.8

Facing same issue after this.

Im also facing the same issue cvc-complex-type.2.4.a: Invalid content was found starting with element ‘base-extension’. One of ‘{layoutlib}’ is expected.

does any one solved this problem? Im also facing the same issue

Does anyone have an idea to resolve this issue?

I face the same problem,In my case I opened the idea.log,and it says I haven’t the build-tools 28.0.3,then I installed this version of build-tools, after that, my problem solved.

Add Ndk path in local.Properties like this
and download ndk’s from Sdk Tools in Sdk Manager
ndk.dir=C:UsersUserNameAppDataLocalAndroidSdkndk21.1.6352462

@zhangtao2005, Thank you, I had tried to play with older code but finally upgraded to latest react native and pulled all latest dependencies, hence its working fine

Add Ndk path in local.Properties like this and download ndk’s from Sdk Tools in Sdk Manager ndk.dir=C:UsersUserNameAppDataLocalAndroidSdkndk21.1.6352462

Thank you

I have the issues related to base-extension. I used distributionUrl=https://services.gradle.org/distributions/gradle-2.14.1-all.zip in gradle-wrapper.properties file and classpath 'com.android.tools.build:gradle:2.2.3' in build.gradle file of android directory.

This error returns when npx react-native run-android is run

Also, I tried to open project on Android Studio. This is the error of it.

Hi Team

I am getting this error while building the project

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

Same issue

i fixed it. Please check the configuration below

Hello all, 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 updating Android Gradle Plugin Version and Gradle Version.

Android Studio Configuration: Android Studio Bumblebee | 2021.1.1 Patch 1 JDK: 1.8

This works for me, thanks a lot!

It is possible that your SDK tools is too new. Check the version through “adb version“ and reinstall the corresponding old version according to your needs，after that, my problem solved.

Hello all, 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 updating Android Gradle Plugin Version and Gradle Version.

Android Studio Configuration: Android Studio Bumblebee | 2021.1.1 Patch 1 JDK: 1.8

Worked for me, Thanks

Invalid content was found starting with element ‘base-extension’. One of ‘{layoutlib}’ is expected.
please tell any fix……..

I am also facing this issue but sadly none of the suggestions made above work for me.

Here’s the 2 error messages I see —
cvc-complex-type.2.4.a: Invalid content was found starting with element 'base-extension'. One of '{layoutlib}' is expected.
cvc-complex-type.2.4.a: Invalid content was found starting with element 'base-extension'. One of '{codename, tag}' is expected.

I think this could be an M1 Chip issue as this didn’t happen to me on an Intel chip.
Any help would be appreciated.

Same here.

3 error messages:-
cvc-complex-type.2.4.a: Invalid content was found starting with element ‘base-extension’. One of ‘{layoutlib}’ is expected.
cvc-complex-type.2.4.d: Invalid content was found starting with element ‘base-extension’. No child element is expected at this point.
cvc-complex-type.2.4.a: Invalid content was found starting with element ‘base-extension’. One of ‘{codename, tag}’ is expected.

Android Studio Bumblebee | 2021.1.1 Patch 1
M1 Chip

I am also facing this issue but sadly none of the suggestions made above work for me.

Here’s the 2 error messages I see — cvc-complex-type.2.4.a: Invalid content was found starting with element 'base-extension'. One of '{layoutlib}' is expected. cvc-complex-type.2.4.a: Invalid content was found starting with element 'base-extension'. One of '{codename, tag}' is expected.

I think this could be an M1 Chip issue as this didn’t happen to me on an Intel chip. Any help would be appreciated.

So here’s an update — I was finally able to fix this issue on my M1 Pro machine. ✅

The fix —

• Updated gradle-wrapper.properties to use gradle version 6.9.0.
• Updated my build.gradle to use architecture components version 2.4.0 (look for kapt "androidx.room:room-compiler...").

Now why did these changes work for me?

1. Gradle 6.9 was the first release to include Apple Silicon Support. (see release notes). Thus, upgrading to this version was the first step (as has also been suggested by Google here).

1. Instead of building from Android studio, I ran the gradlew build command. Once done, I looked at the error logs, and noticed an error for SQLite Room DB.
   Caused by: java.lang.Exception: No native library is found for os.name=Mac and os.arch=aarch64. path=/org/sqlite/native/Mac/aarch64 at org.sqlite.SQLiteJDBCLoader.loadSQLiteNativeLibrary(SQLiteJDBCLoader.java:333) at org.sqlite.SQLiteJDBCLoader.initialize(SQLiteJDBCLoader.java:64) at androidx.room.verifier.DatabaseVerifier.(DatabaseVerifier.kt:71) ...
   I looked up online and this StackOverflow answer seemed to give the solution that worked for me.
   Explanation — Room DB, part of Android architecture components library, uses SQLite internally, which had compatibility issues with the new Apple Silicon architecture. This was fixed in one of the Room alphas and updated in the Release Notes.

I hope you find this fix useful.

I’m not seeing this. We are going to be replacing the gradle build system with bazel and will update all our dependencies etc. at the same time so it should be fixed then.

I’ll leave this issue open until then in case someone else figures it out

Update gradle version and target JDK 11 fixed my issue.

Hello all, 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 updating Android Gradle Plugin Version and Gradle Version.

Android Studio Configuration: Android Studio Bumblebee | 2021.1.1 Patch 1 JDK: 1.8

This worked for me，Thanks。

Closing all outstanding pull requests + issues as we’ve reworked the app to now build with Bazel. With this change, we should be able to properly accept pull requests going forward so these won’t sit around for so long. If this is still relevant please check it with the latest version [Using the Android T SDK] and re-open.

to fix this issue simply reset your ide settings File — Manage IDE Settings — Restore Default Settings

Works like magic

Hello all, 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

this is work for me also. thanks

my project’ s compileSdkVersion and targetSdkVersion is API 28, so i remove the latest SDK Platforms and Android SDK Build-Tools, it works for me

As per my experience, most of the time it happens when your gradle version and gradle distributionUrl are not matching. Make sure you are using the right gradle version for you project. the following link may help, Gradle Versioning

Hello dear community.
I am building react-native project for android.
But, unfortunately, I face the same errors like the above.
Already set Android gradle plugin and gradle version according to the best solutions.
But, the same error is occured in my side.
Help me.