I'm a beginner with gradle and would like to use koin in my Kotlin project.
However, I get the following error
Execution failed for task ':compileTestKotlin'.
> Error while evaluating property 'filteredArgumentsMap' of task ':compileTestKotlin'
> Could not resolve all files for configuration ':testCompileClasspath'.
> Could not resolve org.jetbrains.kotlin:kotlin-test-junit5:1.6.20.
Required by:
project : > org.jetbrains.kotlin:kotlin-test:1.6.20
> Module 'org.jetbrains.kotlin:kotlin-test-junit5' has been rejected:
Cannot select module with conflict on capability 'org.jetbrains.kotlin:kotlin-test-framework-impl:1.6.20' also provided by [org.jetbrains.kotlin:kotlin-test-junit:1.6.10(junitApi)]
> Could not resolve org.jetbrains.kotlin:kotlin-test-junit:1.6.10.
Required by:
project : > io.insert-koin:koin-test:3.2.0-beta-1 > io.insert-koin:koin-test-jvm:3.2.0-beta-1
> Module 'org.jetbrains.kotlin:kotlin-test-junit' has been rejected:
Cannot select module with conflict on capability 'org.jetbrains.kotlin:kotlin-test-framework-impl:1.6.10' also provided by [org.jetbrains.kotlin:kotlin-test-junit5:1.6.20(junit5Api)]```
This is my gradle.build.kts file
import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
val koinVersion = "3.2.0-beta-1"
plugins {
kotlin("jvm") version "1.6.20"
kotlin("plugin.serialization") version "1.6.10"
application
}
group = "org.example"
version = "1.0-SNAPSHOT"
repositories {
mavenCentral()
}
dependencies {
implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.3.2")
implementation("io.insert-koin:koin-core:$koinVersion")
testImplementation("io.insert-koin:koin-test:$koinVersion")
testImplementation("io.insert-koin:koin-test-junit5:$koinVersion")
testImplementation("com.willowtreeapps.assertk:assertk-jvm:0.25")
testImplementation(kotlin("test"))
}
tasks.test {
useJUnitPlatform()
}
tasks.withType<KotlinCompile> {
kotlinOptions.jvmTarget = "1.8"
}
application {
mainClass.set("MainKt")
}
It looks like there are 3 problems
As I mentioned in the comment, the Kotlin JVM and Serialization plugins have mismatched versions. These should always be the same!
plugins {
kotlin("jvm") version "1.6.21"
kotlin("plugin.serialization") version "1.6.21"
application
}
However, as you discovered, it still doesn't work. There's a larger error message, with three errors.
Could not resolve io.insert-koin:koin-test-junit5:3.2.0-beta-1
Could not resolve org.jetbrains.kotlin:kotlin-test-junit5:1.6.21
Could not resolve org.jetbrains.kotlin:kotlin-test-junit:1.6.10
Let's go through them one-by-one
Java 11 library, Java 8 project
Here's the reason that Gradle gives for the first failure:
Could not resolve io.insert-koin:koin-test-junit5:3.2.0-beta-1.
No matching variant of io.insert-koin:koin-test-junit5:3.2.0-beta-1 was found. The consumer was configured to find an API of a library compatible with Java 8, preferably in the form of class files, preferably optimized for standard JVMs, and its dependencies declared externally, as well as attribute 'org.jetbrains.kotlin.platform.type' with value 'jvm' but
Incompatible because this component declares a component compatible with Java 11 and the consumer needed a component compatible with Java 8
The component, koin-test-junit5, is only compatible with Java 11, but your project needs Java 8 (kotlinOptions.jvmTarget = "1.8").
Let's fix this first, using Gradle Toolchain
tasks.withType<KotlinCompile>().configureEach {
kotlinOptions.jvmTarget = "11"
}
kotlin {
jvmToolchain {
(this as JavaToolchainSpec).languageVersion.set(JavaLanguageVersion.of(11))
}
}
That resolves the Java version mis-match, and leaves two more errors.
conflict on capability - incompatible libraries
Cannot select module with conflict on capability
Cannot select module with conflict on capability 'org.jetbrains.kotlin:kotlin-test-framework-impl:1.6.10' also provided by [org.jetbrains.kotlin:kotlin-test-junit:1.6.10(junitApi)]
Cannot select module with conflict on capability 'org.jetbrains.kotlin:kotlin-test-framework-impl:1.6.10' also provided by [org.jetbrains.kotlin:kotlin-test-junit5:1.6.10(junit5Api)]
Understanding this one requires quite a bit of knowledge of how Gradle selects versions.
tl;dr: org.jetbrains.kotlin:kotlin-test-junit and org.jetbrains.kotlin:kotlin-test-junit5 are incompatible. You can only use one or the other - not both
I don't really understand what Koin needs to work best. It looks like it has a hard dependency on JUnit5, so you'd have to use these dependencies, and wouldn't be able to use kotlin("test")
dependencies {
implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.3.2")
implementation("io.insert-koin:koin-core:$koinVersion")
testImplementation("io.insert-koin:koin-test:$koinVersion")
testImplementation("io.insert-koin:koin-test-junit5:$koinVersion")
testImplementation("com.willowtreeapps.assertk:assertk:0.25")
testImplementation("org.junit.jupiter:junit-jupiter:5.8.2")
// incompatible with JUnit 5, which I think is required by Koin?
// testImplementation(kotlin("test"))
}
Explanation
In short, when you use Gradle to build a library, you can declare 'attributes'. They're free-form strings, so they can really be anything. They describe things like "this library needs Java 11" or "this is test coverage data".
Some attributes are important to Gradle resolving a project's dependencies. The error you originally got was caused by one such attribute: 'capability'. It describes the Maven coordinates that the library produces.
In the case of the Maven coordinates, if they clash, then Gradle doesn't know what to do, and throws an error. It's up to the user to fix it. There's a lot of Gradle docs about conflict resolution, but usually the simplest answer is to is remove any conflicting dependencies.
What's interesting about capabilities is that because it's just a string, you can add anything to it. And what the authors of org.jetbrains.kotlin:kotlin-test-junit5 and org.jetbrains.kotlin:kotlin-test-junit have done is given them both the same capability.
org.jetbrains.kotlin:kotlin-test-framework-impl:1.6.10
If you search for this library you'll find it doesn't exist. That's because the capability is completely artificial! The authors have made it up, specifically so Gradle will throw an error, and it's up to the user to fix it.
So that's the fix: choose either kotlin-test-junit or kotlin-test-junit5, because you can't have both.
I think org.jetbrains.kotlin:kotlin-test-junit5 has problem with dependencies.
I also struggled with the same issue, so I tried multiple solutions but it all fails.
And I realized that, when just add dependency for kotlin-test-junit5, the kotlin-test-junit is also added to the external libraries.
So here's the working solution for me.
I added this line to gradle first to enable useJunitPlatform()
tasks.withType<Test> {
useJUnitPlatform()
}
after that, i exclude kotlin-test-junit from every references like this,
testImplementation("io.ktor:ktor-server-tests-jvm:$ktorVersion")
testImplementation("org.jetbrains.kotlin:kotlin-test-junit5:$kotlinVersion") {
exclude(group = "org.jetbrains.kotlin", module = "kotlin-test-junit")
}
// Dependency Injection
val koinVersion: String by project
implementation("io.insert-koin", "koin-ktor", koinVersion)
implementation("io.insert-koin", "koin-logger-slf4j", koinVersion)
testImplementation("io.insert-koin", "koin-test-junit5", koinVersion) {
exclude(group = "org.jetbrains.kotlin", module = "kotlin-test-junit")
}
After that, junit5 test was working perfectly.
My app works well on react-native-run-android and on gradlew clean provide me build success.
I used to check and creating the apk by using gradlew assembleRelease.
Recently, I faced an error while trying to create the APK and I cant find the right solution.
as far as I understand, some problem with the build.gradle or any gradle settings - the last feature I put was the mauron background geolocation (im not sure if that cause the problem).
I tried:
on gradle.properties :
android.useAndroidX=true
android.enableJetifier=true
org.gradle.daemon=true
org.gradle.configureondemand=true
org.gradle.jvmargs=-Xmx4608m -XX:MaxPermSize=2048m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
in build.gradle I added: implementation 'androidx.multidex:multidex:2.0.1' in the dependencies.
3.
defaultConfig {
...
multiDexEnabled true
}
dexOptions {
incremental true
javaMaxHeapSize "4g"
// multiDexEnabled true
}
The gradle I used was 6.3. So I upgraded (downloaded from their website v7 but I think the project is still under 6.3).
My question is:
If the app works and build successfuly, was the error because of my code or the gradle settings?
Im over a week with that problem and out of any clue how to get it work.
the error I get:
> Task :app:mergeDexRelease FAILED
D8: Program type already present: org.apache.commons.io.Charsets
com.android.builder.dexing.DexArchiveMergerException: Error while merging dex archives:
Program type already present: org.apache.commons.io.Charsets
full picture: https://ibb.co/87pFnv1 , https://ibb.co/FxB8PWX
could anyone help me with it?
The error is not about multidex. It clearly says that one of your package is trying to add a library which is already there.
Since you have the name of the library you can put conditional implementation in your build.gradle to avoid redundant implementation.
for example
Implementation('new package that has module'){
exclude module: 'module to exclude'
}
Finally I solved the problem, Thanks Shashank Shekhar for directing me to the correct problem.
I used mauron85/react-native-background-geolocation package, was working fine until I tried to create apk.
in mauron85 issue #505 there was similar problem and someone fixed it by forking and maintaining the repo.
if anyone face that issue in future, I recommend to use #darron1217/react-native-background-geolocation as it solved the error.
Resolved: I have two packages #react-native-masked-view/masked-view (from previous developer) and #react-native-community/masked-view. Just remove #react-native-masked-view/masked-view package and try build.
https://github.com/react-native-masked-view/masked-view/issues/100#issuecomment-841634389 Thanks to: Navipro70
I've started to implement instant app feature in my application. I managed to transition to base module and properly build an installable app. The base module has 3 build types:
buildTypes {
release {...}
acceptance {...}
debug {...}
When I try to build instant app as a separate module that has build.gradle file:
apply plugin: 'com.android.instantapp'
dependencies {
implementation project(':base')
}
I'm getting below error message:
Cannot choose between the following variants of project :app:
- inchargeAcceptanceBundleElements
- inchargeAcceptanceRuntime
- inchargeAcceptanceUnitTestCompile
...
(much much longer I can give full stacktrace if needed)
I tried to change instantapp/build.gradle:
implementation project(path: ':base', configuration: 'default')
but then I get:
Unable to resolve dependency for ':instantapp#debug/compileClasspath': Failed to transform file 'base-release.aar' to match attributes {artifactType=processed-aar} using transform IdentityTransform
Then the app module itself has 4 product flavors but it shouldn't matter I believe.
Any advice how to run instantapp module ?
i have add $anko_version in build.gradle(project)
and the add dependencies in build.gradle(app) but Failed when i try to sync.
I just implemented, and it works
implementation "org.jetbrains.anko:anko:0.10.5"
You should use the latest version for anko, and that is
implementation "org.jetbrains.anko:anko:0.10.5"
There is no version like 1.10.5. Check the anko documentation
I am trying to use apache-ldap-api with grails 2.2 . The latest version of the api on their website is 1.0.0-M15 , but maven repo has upto 1.0.0-M13 . So I decided to use M13 first by adding a dependency to BuildConfig.groovy:
dependencies {
// specify dependencies here under either 'build', 'compile', 'runtime', 'test' or 'provided' scopes e.g.
runtime(
[group: 'org.apache.directory.shared', name: 'apache-ldap-api', version: '1.0.0-M13']
)
// runtime 'mysql:mysql-connector-java:5.1.20'
}
Grails downloaded the dependency alright, but when I try to use the API in the code such as:
import org.apache.directory.groovyldap.LDAP
LDAP.newInstance(...)
I get a compile error :
LdapController.groovy: 2: unable to resolve class org.apache.directory.groovyldap.LDAP
# line 2, column 1.
import org.apache.directory.groovyldap.LDAP
^
1 error
The compiler lets me import 'org.apache.directory.groovyldap.*' but then again, the call to 'LDAP.newInstance()' throws an exception.
I also tried manually dropping the 1.0.0-M15 version in my /lib folder and running 'grails compile --refresh-dependencies' without any luck. Any ideas if I am doing something wrong here?
Thanks!
1 run this grails compile --refresh-dependencies
2 change LDAP.newInstance(...) into new LDAP
This is how it works for me