When I was trying to upgrade my Android Studio to 3.4, the update does not go smoothly rather, some dependencies break. In my case, the RxJava/RxKotlin dependencies are breaking without giving any clue. Even that is happening randomly as I have RxJava/RxKotlin Code in each of my 4 modules but the dependency is failing in only one module.
What I tried :
Invalidate Cache and restart.
Delete /build *module/build/ *module/.gradle/ & .gradle/
Clean Project
Try find answers on the internet and these are the closest but does not solve the problem. (They did not recommend to upgrade to 3.4)
i) Unresolved reference: Observable in Android Studio 3.4
Explains the problem I have but the thread is moving to either not upgrading the Gradle (Which is last option for me) or making sure RxJava that is being used in the project or any of its library is 2.2.8). For that reason I tried explicitly adding RxJava 2.2.8 (I was not previously as I was getting it inside RxKotlin) and wrote a resolutionStrategy to force Android studio to use RxJava 2.2.8 like this in that particular module i.e. domain, but did not solve the issue :
configurations.all {
resolutionStrategy.force 'io.reactivex.rxjava2:rxjava:2.2.8'
}
ii) RxKotlin is not resolved properly after updating Gradle to 3.4.0 which does not yet give any solution. And I am even suspicious if it's the issue with RxJava/RxKotlin or the Gradle plugin itself. Or even if it's the case with RxKotlin or any other libraries too.
Edit: My dependencies in domain module looks like this :
dependencies {
implementation Deps.kotlinStdLib
implementation Deps.rxKotlin
implementation Deps.dagger
implementation Deps.timber
implementation Deps.mobiusCore
implementation Deps.mapboxGeoJSONCore
}
try to add rxkotlin to the dependencies (if not already added):
dependencies {
// rxKotlin ...is likely missing
implementation "io.reactivex.rxjava2:rxkotlin:2.3.0"
// rxJava:
implementation "io.reactivex.rxjava2:rxjava:2.2.0"
// rxAndroid bindings:
implementation "io.reactivex.rxjava2:rxandroid:2.1.0"
}
Related
I have facing the following error while building the project. And unable to solve the same after trying it for whole day.
error: To use RxJava2 features, you must add `rxjava2` artifact from Room as a dependency. androidx.room:room-rxjava2:<version>
public abstract java.lang.Object clearAllBillers(#org.jetbrains.annotations.NotNull()
^
below are my dependancies inside the build.gradle
implementation("androidx.room:room-rxjava2:2.3.0")
implementation "androidx.room:room-runtime:2.3.0"
implementation "androidx.room:room-ktx:2.3.0"
implementation 'androidx.constraintlayout:constraintlayout:2.1.0'
implementation 'androidx.legacy:legacy-support-v4:1.0.0'
kapt "androidx.room:room-compiler:2.3.0"
I have done trying already existing solutions such as upgrading
classpath 'com.android.tools.build:gradle:7.3.1'
Also tried to do invalidate cache and clean project.
Still not able to solve the issue.
Please help me if you have any idea to get it resolve.
Thanks in advance!!!❤️
Not sure why haven't you received an answer quicker (because this question has an easy solution)
you just need to add
implementation("androidx.room:room-rxjava2:2.4.3")
to your build.gradle (for your app or module)
(source)
Error while adding MoshiPack Library in Kotlin latest version 1.3.70 to gradle.build application
Moshi pack
implementation 'com.daveanthonythomas.moshipack:moshipack:1.0.1'
Error Message
Duplicate class kotlin.reflect.KClasses found in modules jetified-kotlin-reflect-1.1.1.jar (org.jetbrains.kotlin:kotlin-reflect:1.1.1) and jetified-kotlin-stdlib-1.3.70.jar (org.jetbrains.kotlin:kotlin-stdlib:1.3.70)
Any suggestions how to solve this issue or any other library I can use in Kotlin so I can use Message Pack.
Thanks in advance
Try to add this to your dependencies:
implementation "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"
and make sure you specified your Android NDK location under File>Project Structure...>SDK Location
Starting Kotlin 1.3.70 some basic useful members on KClass included in Kotlin standard library (they were in a kotlin-reflect before).
See "Working with KClass" in https://blog.jetbrains.com/kotlin/2020/03/kotlin-1-3-70-released/
In your case MoshiPack adds a kotlin-reflect library that conflicts with standard library.
You should exclude transitive dependency to resolve the conflict.
If you use KotlinDSL, in build.gradle.kts:
implementation ("com.daveanthonythomas.moshipack:moshipack:1.0.1") {
exclude(group = "org.jetbrains.kotlin", module = "kotlin-reflect")
}
If you use Groovy, in build.gradle:
implementation ('com.daveanthonythomas.moshipack:moshipack:1.0.1') {
exclude group: 'org.jetbrains.kotlin', module: 'kotlin-reflect'
}
I tried this and it worked
implementation "org.jetbrains.kotlin:kotlin-reflect:1.4.10"
i think the only way to solve it , to go back to kotlin version 1.3.61 , so remove 1.3.70 and use 1.3.61
So I finally figured it out and here's how :-
So the main problem is you have injected 2 dependency of same class. Here he used 2 dependency for Kotlin which conflict in runtime to fix that you have to check which dependency is duplicated. (It is most case scenario. It can be with any other dependency i.e. Hilt)
Go to File > Project structure > Dependencies
Check which dependency are repeating. In this case it will have (androidx.core:core:1.8.0) and (androidx.core:core:+)
as you can see there are 2 dependency with same classes version 1.8.0 will have all the class which core:+ will have and this is causing a error.
Now delete (androidx.core:core:+) and hit Apply and sync project.
Now you should be good to go. here is structure after changing dependency.
Note:- This method will show all the android dependency which you might be not included but you will see all the dependency which any app has. Please remove the dependency who are you familiar with do not remove any dependency without any proper knowledge.
I am using a lot of Firebase related libraries in my project. Upon syncing, I am facing the following error.
Android dependency 'com.google.firebase:firebase-iid' has different
version for the compile (17.0.3) and runtime (17.1.1) classpath. You
should manually set the same version via DependencyResolution
The thing is that I have not even declared firebase-iid in my dependencies and this is coming as a transitive dependency from other firebase libraries.
Upon running the dependency chart, I am able to find the following things.
Version 17.0.3 is coming from com.google.android.gms:play-services-measurement-api:16.4.0
Whereas 17.1.1 is coming from com.google.firebase:firebase-messaging:17.5.0
Ideally it should resolve it internally and the higher version should be automatically picked. But this is not happening.
Any idea why this is happening and how to resolve this issue?
There is not updated gradle for com.google.android.gms:play-services-measurement-api:
The latest release is on March 2019, version : 16.4.0 .
So, your implementation is not correct for this measurement-api .
Use :
com.google.android.gms:play-services-measurement-api:16.4.0
com.google.firebase:firebase-messaging:17.5.0
refer this link : https://mvnrepository.com/artifact/com.google.android.gms/play-services-measurement-api/16.4.0
https://mvnrepository.com/artifact/com.google.firebase/firebase-messaging
Yes you are right, gradle should automatically resolve to a single version of a library, but as I experienced sometimes, it does, sometimes, it does not. But when It does not resolve to a single version of same library, we can force it to use a single specific version like explained below.
configurations.all {
resolutionStrategy {
force "com.google.android.gms:play-services-measurement-api:17.1.1"
force "com.google.firebase:firebase-messaging:17.5.0"
}
}
dependencies {
// ... all dependencies here...
}
Try using above code forcing gradle to use a single version. Might help in your case.
I'm trying to add ViewModel and LiveData to a Kotlin app. I have the following dependencies added to my module's build.gradle:
implementation "android.arch.lifecycle:extensions:1.1.1"
kapt "android.arch.lifecycle:compiler:1.1.1"
testImplementation "android.arch.core:core-testing:1.1.1"
I'm given the following error:
Android dependency 'android.arch.lifecycle:runtime' has different version for the compile (1.0.0) and runtime (1.1.1) classpath. You should manually set the same version via DependencyResolution
Removing the first line (extensions) fixes the issue, indicating that the error is coming from there, but I can't figure out why.
As #RedBassett mentions Support libraries depends on this lightweight import (runtime library) as explained at android developers documentation.
This is, android.arch.lifecycle:runtime:1.0.0 is spreading up in the dependency tree as a result of an internal api (transitive) import so in my case I only had to include extensions library as "api" instead of "implementation" so that it will override its version to the highest (1.1.1).
In conclusion, change
implementation "android.arch.lifecycle:extensions:1.1.1"
to
api "android.arch.lifecycle:extensions:1.1.1"
In your main build.gradle file
allprojects {
...
configurations {
all {
resolutionStrategy {
force "android.arch.lifecycle:runtime:1.1.1"
}
}
}
}
This will enforce version 1.1.1
Apparently support-v4 was causing the conflict. In the case of this question, the Gradle dependency task wasn't working correctly, but for anyone else who runs into this issue:
./gradlew :app:dependencies will show the sub-dependencies used by your dependencies. Search the output of this command (changing app for your module name) for the dependency causing the conflict.
#RedBassett is right. However I was still having some problem excluding android.arch.lifecycle related sub dependencies.
In my case the conflict was caused in com.android.support:appcompat-v7:27.1.1.
This is how my gradle dependency looks like after excluding it.
implementation ('com.android.support:appcompat-v7:27.1.1') {
exclude group: 'android.arch.lifecycle'
}
api "android.arch.lifecycle:runtime:1.1.1"
kapt "android.arch.persistence.room:compiler:1.1.1"
Also, you will have to add this exclude in every imported module.
I searched for all dependencies with ./gradlew :app:dependencies as #RedBassett mentioned. I noticed the incompatible version of android.arch.core:runtime that Gradle was complaining about was stemming from my version of com.android.support:appcompat-v7, so I just updated that version to the latest and everything worked.
In my project I use SquidDatabase almost everywhere to access the database.
I want to transform my project to Kotlin but when I build there are lots of "Unresolved reference: DepartmentInfo" errors.
That DepartmentInfo class was created by SquidDatabase while building so I think this problem is caused by Kotlin building before other libraries.
I failed to find any way to change Kotlin to the end of buildlist.
How can I solve this problem?
I posted this issue on Github and got reply from developers.
The solotion is here:
build.gradle of your app
//If using kotlin language,please add this
apply plugin: 'kotlin-kapt'
......
dependencies {
compile 'com.yahoo.squidb:squidb:3.2.3'
compile 'com.yahoo.squidb:squidb-annotations:3.2.3'
compile 'com.yahoo.squidb:squidb-android:3.2.3' // For Android projects only
//annotationProcessor 'com.yahoo.squidb:squidb-processor:3.2.3'
// If using the android-apt plugin, this becomes
// apt 'com.yahoo.squidb:squidb-processor:3.2.3'
// If using kotlin language, this becomes
kapt 'com.yahoo.squidb:squidb-processor:3.2.3'
}
It may cause errors if you use DataBinding for Andriod,and the solution is to add one more kapt in your dependencies:
kapt 'com.android.databinding:compiler:$gradle_version'