Unable to resolve dependency for app debug compileClasspath Could not resolve com android support appcompat-v7 26 1 0

Question

Unable to resolve dependency for   app debug compileClasspath   Could not resolve com android support appcompat-v7 26 1 0   Could not resolve com android support appcompat-v7 26 1 0   Required by  project  app     No cached version of com android support appcompat-v7 26 1 0 available for offline mode    Error log      Could not resolve all files for configuration   app debugCompileClasspath     Could not resolve com android support appcompat-v7 26 1 0      Required by          project  app   No cached version of com android support appcompat-v7 26 1 0 available for offline mode    No cached version of com android support appcompat-v7 26 1 0 available for offline mode    Could not resolve com android support constraint constraint-layout 1 1 0-beta3      Required by          project  app   No cached version of com android support constraint constraint-layout 1 1 0-beta3 available for offline mode    No cached version of com android support constraint constraint-layout 1 1 0-beta3 available for offline mode    Could not resolve com android support design 26 1 0      Required by          project  app   No cached version of com android support design 26 1 0 available for offline mode    No cached version of com android support design 26 1 0 available for offline mode    Could not resolve com android support cardview-v7 26 1 0      Required by          project  app   No cached version of com android support cardview-v7 26 1 0 available for offline mode    No cached version of com android support cardview-v7 26 1 0 available for offline mode    Could not resolve com google android gms play-services-ads 11 4 2      Required by          project  app   No cached version of com google android gms play-services-ads 11 4 2 available for offline mode    No cached version of com google android gms play-services-ads 11 4 2 available for offline mode    Could not resolve com android support support-v4 26 1 0      Required by          project  app   No cached version of com android support support-v4 26 1 0 available for offline mode    No cached version of com android support support-v4 26 1 0 available for offline mode    Error log image

User · Answer

I solved the problem  In Home Ubuntu  I deleted the  gradle folder and downloaded it again  I hope it is useful

User · Answer

From the documentations      Add the support library to the dependencies section  For example  to   add the v4 core-utils library  add the following lines   dependencies               implementation  com android support support-core-utils 28 0 0

User · Answer

For users which have flavors in the project and found this thread   Notice  that if your module dependency has different flavors  you should use one of the strategies    Module that tightens dependencies should have the same flavors and dimensions as the dependency module You should explicitly indicate which configuration you target in the module   Like that   dependencies       compile project path    module   configuration  alphaDebug

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This is a problem for users who live in a country that is banned by Google  like Iran   for this reason we need to remove these restrictions by a proxy  follow me    file- settings- Appearance amp Behavior- System Setting-  Http Proxy-  Manual proxy configuration - HTTP -  Host name   fodev org - Port   8118    and click Ok Button  then go to file-  Invalidate Caches Restart       Use and enjoy the correct execution without error

User · Answer

Just went to build gradle and deleted the line   implementation  com android support appcompat-v7 26 1 0    After that  I re-synced the Gradle  Then  I pasted the line of code back  re-synced the Gradle again and it worked   Note  While I was making this changes  I also updated all the SDK Tools that needed update

User · Answer

Go to File- gt Other Settings- gt Default Settings- gt Build  Execution  Deployment- gt Build Tools- gt Gradle- gt Uncheck Offline work option

User · Answer

If you did not uncheck offline work  then make you sure you have internet for Android Studio to normalize your project

User · Answer

In the android app build gradle file    Replace the version details  implementation  com android support appcompat-v7 26 1 0    with  implementation  com android support appcompat-v7      Android Studio will use a suitable version to make it work for you

User · Answer

Below is a workaround demo image of   Uncheck Offline work option by going to      File -  Settings -  Build  Execution  Deployment -  Gradle     If above workaround not works then try this         Open the build gradle file for your application    Make sure that the repositories section includes a maven section with the  https   maven google com  endpoint  For example   allprojects        repositories            jcenter            maven                url  https   maven google com                         Add the support library to the dependencies section  For example  to add the v4 core-utils library  add the following lines    dependencies               compile  com android support support-core-utils 27 1 0             Caution  Using dynamic dependencies  for example  palette-v7 23 0    can cause unexpected version updates and regression incompatibilities  We recommend that you explicitly specify a library version  for example  palette-v7 27 1 0        Manifest Declaration Changes      Specifically  you should update the android minSdkVersion element of the  lt uses-sdk gt  tag in the manifest to the new  lower version number  as shown below    lt uses-sdk   android minSdkVersion  14    android targetSdkVersion  23    gt        If you are using Gradle build files  the minSdkVersion setting in the build file overrides the manifest settings    apply plugin   com android application   android                defaultConfig               minSdkVersion 16                                                Following Android Developer Library Support

User · Answer

I ran into the same issue and adding mavenCentral   in the repositories block of my build gradle file worked for me  I had Offline work unchecked and adding maven   url  https   maven google com     Adding this answer for the lost souls that find themselves at end of this thread

User · Answer

If you are getting this same error after adding dynamic module then don t worry follow this    Add productFlavors in your build gradle dynamic- module   productFlavors   flavorDimensions  default  stage         to do   prod         to do

User · Answer

For me the cause was incorrect url for jcenter  To solve it I simply changed url for app and proect level build gradle   from   jcenter   url  http   jcenter bintray com      to    jcenter

User · Answer

Go to build Gradle file and replace 27 and 29 by 25 at these places    1  targetSdkVersion 25   2  implementation  com android support appcompat-v7 25     it really works for me  Thanks

User · Answer

For other people where the accepted answer does not solve this issue     As of September 2018  AndroidX has replaced the Android Support Libraries  which includes the appcompat-v7 library    com android support appcompat-v7  becomes  androidx appcompat appcompat 1 0 0    com android support design  becomes  com google android material material 1 0 0      References       https   developer android com jetpack androidx migrate   List of Support Libraries to AndroidX mappings

User · Answer

Used implementation  androidx appcompat appcompat 1 1 2  in App gradle  fixed the issue for me

User · Answer

Go to File- Other Settings- Preferences for New Projects- Build  Execution  Deployment- Build Tools- Gradle- Uncheck Offline work option

User · Answer

Adding this in project gradle worked for me  allprojects    repositories        jcenter        maven            url  https   maven google com     specifically this worked

User · Answer

Today I have the similar problem   Previous in my project gradle      Top-level build file where you can add configuration options common to all  sub-projects modules  allprojects   repositories       jcenter       google       mavenCentral       maven   url  https   jitpack io        maven   url  https   plugins gradle org m2         Then I just added this below line in allprojects   maven           url  https   maven google com          It saved my day   And now my current allproject    code looks like this  allprojects   repositories       jcenter       google       mavenCentral       maven   url  https   jitpack io        maven   url  https   plugins gradle org m2        maven           url  https   maven google com

User · Answer

Invalidate Cache   Restart from File option  Just unchecking offline mode did not work for me

User · Answer

use Invalidate Caches Restart it will works for you and make sure that your gradle offline sync option is not enabled

[android] Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve com.android.support:appcompat-v7:26.1.0

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