Braintree Drop-in UI: ERROR: Failed to resolve: org.jfrog.cardinalcommerce.gradle:cardinalmobilesdk:2.2.1-2?

Troubleshooting Braintree Drop-in UI: “ERROR: Failed to resolve: org.jfrog.cardinalcommerce.gradle:cardinalmobilesdk:2.2.1-2”

This error indicates that your Android project is unable to find the necessary Cardinal Mobile SDK dependency. This is a common issue when integrating Braintree Drop-in UI into your application.

Understanding the Error

The error message, “ERROR: Failed to resolve: org.jfrog.cardinalcommerce.gradle:cardinalmobilesdk:2.2.1-2”, signals a missing dependency. Here’s a breakdown:

• org.jfrog.cardinalcommerce.gradle:cardinalmobilesdk: The artifact you’re trying to import, which is a library specifically for handling credit card payments.
• 2.2.1-2: The specific version of the Cardinal Mobile SDK you need.
• Failed to resolve: This means the dependency resolver cannot locate the library in your project’s dependencies.

Common Causes and Solutions

1. Missing Dependency Declaration

Ensure the Cardinal Mobile SDK is correctly declared in your project’s build.gradle (Module: app) file. The declaration should be within the dependencies block.

dependencies {
    // ... other dependencies
    implementation 'org.jfrog.cardinalcommerce.gradle:cardinalmobilesdk:2.2.1-2'
}

Action: If the declaration is missing, add it to the build.gradle file.

2. Incorrect Repository Configuration

The Cardinal Mobile SDK might not be available in the standard Maven Central repository. You need to add the Braintree repository in your build.gradle (Project: app) file:

allprojects {
    repositories {
        google()
        jcenter()
        maven {
            url "https://raw.githubusercontent.com/braintree/android-drop-in/master/maven"
        }
    }
}

Action: Double-check that the repository is correctly defined. If it’s missing, add it as shown above.

3. Version Mismatch

Check if the declared version in your build.gradle (Module: app) matches the actual available version.

Action: Update the version in your build.gradle (Module: app) file if necessary, based on the latest available release. Refer to the Braintree documentation for the correct version.

4. Gradle Issues

Sometimes, Gradle issues can prevent dependency resolution.

• Try Invalidate Caches / Restart: Go to “File > Invalidate Caches / Restart” in Android Studio, then choose “Invalidate and Restart”.
• Rebuild Project: Clean and rebuild your Android project (Build > Clean Project and Build > Rebuild Project).
• Update Gradle: Ensure you have the latest version of Gradle installed. In your project-level build.gradle file, check the dependencies block. Update the Gradle version if necessary.

  dependencies {
      classpath 'com.android.tools.build:gradle:7.4.2' // Example version
  }
  

Additional Considerations

Ensure you’re running your project on a supported environment and platform. You might need to modify your application’s AndroidManifest.xml to include specific permissions.

Refer to the official Braintree documentation for comprehensive setup instructions and troubleshooting resources: [https://developers.braintreepayments.com/](https://developers.braintreepayments.com/)