Migrating project to new experimental gradle plugin

Question

I try to migrate my Android project to new experimental gradle plugin. I followed instructions at this page. I made changes in required files, but I have an error when I trying to Sync project with gradle files.

Error:Unable to load class 'com.android.build.gradle.managed.ProductFlavor_Impl'. Possible causes for this unexpected error include:

• Gradle's dependency cache may be corrupt (this sometimes occurs after a network connection timeout.) Re-download dependencies and sync project (requires network)
• The state of a Gradle build process (daemon) may be corrupt. Stopping all Gradle daemons may solve this problem. Stop Gradle build processes (requires restart)
• Your project may be using a third-party plugin which is not compatible with the other plugins in the project or the version of Gradle requested by the project.

In the case of corrupt Gradle processes, you can also try closing the IDE and then killing all Java processes.

build.gradle in my app folder is very similar to this:

apply plugin: 'com.android.model.application'
apply plugin: 'maven'

repositories {
    maven {
        url = getBaseRepository()
        credentials {
            username = NEXUS_USERNAME
            password = NEXUS_PASSWORD
        }
    }
    mavenCentral()
}

def int CACHE_LIMIT = CACHE_CHANGING_MODULES_FOR_SECONDS.toInteger()

configurations.all {
    resolutionStrategy.cacheChangingModulesFor CACHE_LIMIT, 'seconds'
}

model {
    android {
        compileSdkVersion = 23
        buildToolsVersion = "23.0.0"

        defaultConfig.with {
            applicationId = "<myRealAppIdIsHere>"
            minSdkVersion.apiLevel = 14
            targetSdkVersion.apiLevel = 18

            multiDexEnabled = true
        }
    }

    android.buildTypes {
        debug {
            /*buildConfigField.with {
                create() {
                    type = "boolean"
                    name = "DEBUG_BUILD"
                    value = rootProject.ext.debugBuild
                }
            }*/
        }
        release {
            minifyEnabled = false
            proguardFiles += 'proguard-rules.pro'
            /*buildConfigField.with {
                create() {
                    type = "boolean"
                    name = "DEBUG_BUILD"
                    value = rootProject.ext.releaseBuild
                }
            }*/
        }
    }
}


dependencies {
    // my dependencies are here...
}

Does anybody know where the problem is? I do not know why error message contains problem about ProductFlavor, because my project has no flavors...

UPDATE

I tried to clean my project - clean was not successful, but the error message during clean is more specific:

Error:(10, 1) A problem occurred configuring project ':app'. Exception thrown while executing model rule: com.android.build.gradle.model.BaseComponentModelPlugin$Rules#createVariantData(org.gradle.model.ModelMap, org.gradle.model.ModelMap, com.android.build.gradle.internal.TaskManager) > afterEach() Could not resolve all dependencies for configuration ':app:_debugCompile'. Exception thrown while executing model rule: model.android Cannot set readonly property: minSdkVersion for class: com.android.build.gradle.managed.ProductFlavor_Impl

But still I do not know how can I fix it.

Answer 1

In case this is not the real file in your project, make sure you have:

minSdkVersion.apiLevel
targetSdkVersion.apiLevel

instead of:

minSdkVersion
targetSdkVersion

I had the same issue and this fixed it.