Gradle Sync failed could not find constraint-layout:1.0.0-alpha2

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忘了有多久
忘了有多久 2020-11-27 17:39

Problem :

Error:Could not find com.android.support.constraint:constraint-layout:1.0.0-alpha2.
Required by:
myapp:app:unspecified


        
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22条回答
  • 2020-11-27 18:02

    Just as a heads up to those still searching for this.

    ConstraintLayout 1.0.1 and lower have been deprecated by maven.

    For a list of available constraint layouts that can be downloaded, see below:

    https://maven.google.com/web/index.html?q=Constrain#com.android.support.constraint:constraint-layout

    The easiest solution at the moment, is to change

    implementation 'com.android.support.constraint:constraint-layout:1.0.0-beta1'

    to

    implementation 'com.android.support.constraint:constraint-layout:1.0.2'

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  • 2020-11-27 18:04

    My problem was, that the SDK Tools updated it to the latest version, in my case it was 1.0.0-alpha9, but in my gradle dependency was set to

    compile 'com.android.support.constraint:constraint-layout:1.0.0-alpha8' So, you can change your gradle build file to

    compile 'com.android.support.constraint:constraint-layout:1.0.0-alpha9' Or you check "Show package details" in the SDK Tools Editor and install your needed version. See screenshow below. Image of SDK Tools

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  • 2020-11-27 18:05

    Update your constraint layout dependency to the relevant version from '1.0.0-alpha2'. In my case, I changed to the following. compile 'com.android.support.constraint:constraint-layout:2.0.0-alpha5'

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  • 2020-11-27 18:06

    In my case, that support libraries for ConstraintLayout were installed, but I was adding the incorrect version of ConstraintLayout Library in my build.gradle file. In order to see what version have you installed, go to Preferences > Appearance & Behavior > System Settings > Android SDK. Now, click on SDK Tools tab in right pane. Check Show Package Details and take note of the version.

    Finally you can add the correct version in the build.gradle file

    dependencies {
        compile fileTree(dir: 'libs', include: ['*.jar'])
        compile 'com.android.support.constraint:constraint-layout:1.0.0-alpha9'
        testCompile 'junit:junit:4.12'
    }
    
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  • 2020-11-27 18:06

    Alpha version is no longer available !

    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
    
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  • 2020-11-27 18:06

    While updating SDK tools, a dilog box presented with Constraint layout version that is going to get installed. Note that and update your dependency based on that. In my case it was installing beta3.

    I changed my dependency like below. After that it worked.

    compile 'com.android.support.constraint:constraint-layout:1.0.0-beta3'

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