Develop Reference

Error:Cannot fit requested classes in a single dex file.Try supplying a main-dex list. # methods: 72477 > 65536

I want to add fused location services but it shows me some error.
Help me.
apply plugin: 'com.android.application'
android {
compileSdkVersion 26
buildToolsVersion "27.0.1"
defaultConfig {
applicationId "com.example.adil.bloodbankapplication"
minSdkVersion 15
targetSdkVersion 26
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
compile 'com.android.support:appcompat-v7:26.1.0'
compile 'com.android.support.constraint:constraint-layout:1.0.2'
compile 'com.google.firebase:firebase-auth:11.8.0'
compile 'com.google.firebase:firebase-database:11.8.0'
compile 'com.android.support:support-v4:26.1.0'
compile 'junit:junit:4.12'
compile 'com.android.support:design:26.1.0'
compile 'com.github.joielechong:countrycodepicker:2.1.5'
compile 'com.jaredrummler:material-spinner:1.2.4'
compile 'hanks.xyz:htextview-library:0.1.5'
compile 'com.firebaseui:firebase-ui-database:1.2.0'
compile 'com.google.android.gms:play-services:11.8.0'
}
apply plugin: 'com.google.gms.google-services'

None of the answers they gave you was exhaustive.
The problem lies in the Multidex.
You must add the library in the app gradle :
implementation 'com.android.support:multidex:1.0.3'
After, add in the defaultConfig of the app gradle :
multiDexEnabled true
Your Application must be of the Multidex type..
You must write it in the manifest :
android:name=".MyApplication"
"MyApplication" must be either the Multidex class, or it must extend it.

I fixed my problem with the solution below:
In Gradle build file, add dependency:
implementation 'com.android.support:multidex:1.0.3'
And then in the "defaultConfig" section, add:
multiDexEnabled true

modify your app's or module's build.gradle
android {
defaultConfig {
...
minSdkVersion 21 <----- *here
targetSdkVersion 26
multiDexEnabled true <------ *here
}
...
}
According to official documentation
Multidex support for Android 5.0 and higher
Android 5.0 (API level 21)
and higher uses a runtime called ART which natively supports loading
multiple DEX files from APK files. ART performs pre-compilation at app
install time which scans for classesN.dex files and compiles them into
a single .oat file for execution by the Android device. Therefore, if
your minSdkVersion is 21 or higher, you do not need the multidex
support library.
For more information on the Android 5.0 runtime, read ART and Dalvik.
https://developer.android.com/studio/build/multidex

What are dex files: Android app (APK) files contain executable bytecode files in the form of Dalvik Executable (DEX) files, which contain the compiled code used to run your app.
Reason for this exception: The DEX specification limits the total number of methods that can be referenced within a single DEX file to 65,536 (64K reference limit) —including Android framework methods, library methods, and methods in your own code.
Step 01. Add the following dependency as follows
For Non-Androidx Users,
dependencies {
implementation 'com.android.support:multidex:1.0.3'
}
defaultConfig {
minSdkVersion 16
targetSdkVersion 28
multiDexEnabled true //ADD THIS LINE
}
For Androidx Users,
dependencies {
implementation 'androidx.multidex:multidex:2.0.1'
}
defaultConfig {
minSdkVersion 16
targetSdkVersion 28
multiDexEnabled true //ADD THIS LINE
}
Step 02:
After adding those Sync projects and before you run the project make sure to Build a project before the run. otherwise, you will get an exception.

You can follow this.
Versions of the platform prior to Android 5.0 (API level 21) use the Dalvik runtime for executing app code. By default, Dalvik limits apps to a single classes.dex bytecode file per APK. In order to get around this limitation, you can add the multidex support library to your project:
dependencies {
implementation 'com.android.support:multidex:1.0.3'
}
If your minSdkVersion is set to 21 or higher, all you need to do is set multiDexEnabled to true in your module-level build.gradle file, as shown here:
android {
defaultConfig {
...
minSdkVersion 21
targetSdkVersion 28
multiDexEnabled true
}
...
}

when you are using dependencies so your methods increased!
google has a solution for that. that called Multidex!
NOTE: be sure that min SDK is over 14.
in your build.gradle :
android {
defaultConfig {
...
minSdkVersion 15
targetSdkVersion 28
multiDexEnabled true
}
...
}
dependencies {
implementation 'com.android.support:multidex:1.0.3'
}
FOR androidX USE :
def multidex_version = "2.0.1"
implementation 'androidx.multidex:multidex:$multidex_version'
For more information please go to the orginal link :
https://developer.android.com/studio/build/multidex

Hi problem is here remove it
compile 'com.google.android.gms:play-services:11.8.0'
why?
Note: Don't use the combined play-services target. It brings in dozens of libraries, bloating your application. Instead, specify only the specific Google Play services APIs your app uses.
And use what you need.https://developers.google.com/android/guides/setup
Like for location service
com.google.android.gms:play-services-location:11.8.0
For Cloud Messaging
com.google.android.gms:play-services-gcm:11.8.0

I used below solution in my Flutter project:
Open yourproject/app/build.gradle and add the following lines:
android {
...
defaultConfig {
...
minSdkVersion 21
multiDexEnabled true
}
}
then
dependencies {
...
implementation 'com.android.support:multidex:1.0.3'
}
If you have migrated to AndroidX, you will want this instead:
dependencies {
...
implementation 'androidx.multidex:multidex:2.0.1'
}
This solution worked for me. Thank you for asking this question.

If you are building DEBUG APK, just add:
debug {
multiDexEnabled true
}
inside buildTypes
and if you are building RELEASE APK, add
multiDexEnabled true in release block as-
release {
...
multiDexEnabled true
...
}

For flutter projects you can also solve this issue
open your \android\app\build.gradle
you sould have the following:
android {
defaultConfig {
...
minSdkVersion 16
targetSdkVersion 28
}
}
If your minSdkVersion is set to 21 or higher, all you need to do is set multiDexEnabled to true in the defaultConfig. Like this
android {
defaultConfig {
...
minSdkVersion 16
targetSdkVersion 28
multiDexEnabled true
}
}
if your minSdkVersion is set to 20 or lower add multiDexEnabled true to the defaultConfig
And define the implementation
dependencies {
implementation 'com.android.support:multidex:1.0.3'// or 2.0.1
}
At the end you should have:
android {
defaultConfig {
...
minSdkVersion 16
targetSdkVersion 28
multiDexEnabled true // added this
}
}
dependencies {
implementation 'com.android.support:multidex:1.0.3'
}
For more information read this:
https://developer.android.com/studio/build/multidex

I solved my same problem like this way, you need to follow 2 simple step. I'm AndroidX user so for me, first I implement this dependencies in build.gradle file in my project in dependencies section.
implementation 'androidx.multidex:multidex:2.0.1'
dependencies {
//for multidex
implementation 'androidx.multidex:multidex:2.0.1'
}
after add this dependencies in your build.gradle file then sync your project again
Now add in the "defaultConfig" section:
multiDexEnabled true
defaultConfig {
applicationId "com.papel.helper"
minSdkVersion 16
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
multiDexEnabled true
}
Now Rebuild your project again and Run :)

Just do the following:
build.gradle
(module:app)
android {
....
defaultConfig {
multiDexEnabled true // enable mun
}
}
And add below dependency in your build.gradle app level file
dependencies {
implementation 'com.android.support:multidex:1.0.3'
}

I found this solution for my project
I just set the minimum SDK version to 21 and that solves my problem
android {
defaultConfig {
...
minSdkVersion 21 //set the minimum sdk version 21
targetSdkVersion 29
}
...
}
if your minSdkVersion is 21 or higher multidex is enabled by default, and you do not need the multidex support library.
To read more about multidex https://developer.android.com/studio/build/multidex.html

In Gradle build file, add dependency:
implementation 'com.android.support:multidex:1.0.2'
or
implementation 'com.android.support:multidex:1.0.3'
or
implementation 'com.android.support:multidex:2.0.0'
And then in the "defaultConfig" section, add:
multiDexEnabled true
Under targetSdkVersion
minSdkVersion 17
targetSdkVersion 27
multiDexEnabled true
Now if you encounter this error
Error:Failed to resolve: multidex-instrumentation Open File
You need to change your gradle to 3.0.1
classpath 'com.android.tools.build:gradle:3.0.1'
And put the following code in the file gradle-wrapper.properties
distributionUrl=https://services.gradle.org/distributions/gradle-4.1-all.zip
Finally
add class Applition in project And introduce it to the AndroidManifest
Which is extends from MultiDexApplication
public class App extends MultiDexApplication {
#Override
public void onCreate( ) {
super.onCreate( );
}
}
Run the project first to create an error, then clean the project
Finally, Re-launch the project and enjoy it

Just add this code in your app's or module's build.gradle
android {
defaultConfig {
...
multiDexEnabled true <------ * here
}
...
}

multiDexEnabled true
Please try adding this in your app defaultConfig {}.This help me to solve the problem

This will do the work either for Kotlin or Java project.
Step 1 - Locate build.gradle(Module:app) under the Gradle Scripts
Step 2 - add multiDexEnabled true see below:
compileSdkVersion 29
defaultConfig {
applicationId "com.example.appname"
minSdkVersion 19
targetSdkVersion 29
versionCode 1
versionName "1.0"
multiDexEnabled true //addded
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
Step 3 - add the multidex dependency
dependencies {
implementation 'com.android.support:multidex:2.0.0' //added
}
Finally, sync your project.. Enjoy!

If you are using minifyEnabled with Proguard, you likely won't need to enable multi-dex. I agree with MG Developer that you should try to avoid multi-dex if possible. My solution was to enable multi-dex only for debug builds. minifyEnabled solves the problem for release builds
buildTypes {
release {
minifyEnabled true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
debug {
// getting error: Cannot fit requested classes in a single dex file. # methods: 65537 > 65536
// https://developer.android.com/studio/build/multidex
// minifyEnabled true (used with release) will fix this by getting rid of unused method calls, but this will hide debugging info on crash
multiDexEnabled true
}
}

You have too many methods count.
Android dex file has a limit of 65536 methods you are allowed to have.
For starters, if you don't need all of google play services API and just the location, replace
compile 'com.google.android.gms:play-services:11.8.0'
with
compile 'com.google.android.gms:play-services-location:11.8.0'
You can refer to this page for ways to avoid it or if needed to allow more:
https://developer.android.com/studio/build/multidex.html

I have no idea why, maybe it is because I develop in Kotlin but to fix this error
I finally have to create a class that extends MultiDexApplication like this:
class MyApplication : MultiDexApplication() {
}
and in my Manifest.xml I have to set
<application
...
android:name=".MyApplication">
to not confuse anyone, I also do:
multiDexEnabled true
implementation 'com.android.support:multidex:1.0.3'
for androidx, this also works for me:
implementation 'androidx.multidex:multidex:2.0.0'
...
<application android:name="android.support.multidex.MultiDexApplication">
does not work for me

add your file android/app/build.gradle
defaultConfig {
applicationId "com.ubicacion"
minSdkVersion rootProject.ext.minSdkVersion
targetSdkVersion rootProject.ext.targetSdkVersion
versionCode 1
versionName "1.0"
multiDexEnabled true // ✔
missingDimensionStrategy 'react-native-camera', 'general'
}

Goto build.gradle of app folder,
set minSdkVersion to 21
Save and Run your app, it should run without the dex error now

All I had to do was set the Minimum SDK Version to 21 in File > Project Structure > App > Flavors

I have encountered this error twice and the solution for this is; Check you app gradle file to see your target SDk, if it is 20 or higher, just add one line to your defaultconfig { multiDexEnabled true }
Else if your targetSDK is less than 20, add the line to your defaultConfig and also add a dependency
implementation 'com.android.support:multidex:1.0.3'.
Check this link for more.
https://developer.android.com/studio/build/multidex#mdex-gradle

Using multidex support should be the last resort. By default gradle build will collect a ton of transitive dependencies for your APK. As recommended in Google Developers Docs, first attempt to remove unnecessary dependencies from your project.
Using command line navigate to Android Projects Root.
You can get the compile dependency tree as follows.
gradlew app:dependencies --configuration debugCompileClasspath
You can get full list of dependency tree
gradlew app:dependencies
Then remove the unnecessary or transitive dependencies from your app build.gradle. As an example if your app uses dependency called 'com.google.api-client' you can exclude the libraries/modules you do not need.
implementation ('com.google.api-client:google-api-client-android:1.28.0'){
exclude group: 'org.apache.httpcomponents'
exclude group: 'com.google.guava'
exclude group: 'com.fasterxml.jackson.core'
}
Then in Android Studio Select Build > Analyze APK...
Select the release/debug APK file to see the contents. This will give you the methods and references count as follows.

In build:app
apply plugin: 'com.android.application'
android {
compileSdkVersion 28
defaultConfig {
applicationId "com.proyecto.marketdillo"
minSdkVersion 14
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
multiDexEnabled true
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:28.0.0-rc02'
implementation 'com.google.firebase:firebase-core:16.0.7'
implementation 'com.android.support.constraint:constraint-layout:1.1.3'
implementation 'com.android.support:support-v4:28.0.0-rc02'
implementation 'com.android.support:design:28.0.0-rc02'
implementation 'com.google.firebase:firebase-auth:16.1.0'
implementation 'com.squareup.picasso:picasso:2.5.2'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
implementation 'com.google.firebase:firebase-firestore:17.1.5'
implementation 'com.android.support:multidex:1.0.3'
}
apply plugin: 'com.google.gms.google-services'

android {
compileSdkVersion 28
defaultConfig {
applicationId "com.dev.khamsat"
minSdkVersion 16
targetSdkVersion 28
versionCode 1
versionName "2.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
multiDexEnabled true
}

The error is caused by the number of class dependencies you have in your app Gradle file. If the classes exceed 72,400, you might want to use multidex as a solution to better handle file indexing. Findout more from here: https://developer.android.com/studio/build/multidex

After suffering for two hours found the solution.
File path: android/build.gradle
Worked for me
defaultConfig {
applicationId "com.something"
minSdkVersion rootProject.ext.minSdkVersion
targetSdkVersion rootProject.ext.targetSdkVersion
versionCode 1
versionName "1.0"
multiDexEnabled true --> This works for me
}
If your minSdkVersion is set to 21 or higher, multidex is enabled by default and you do not need the multidex support library. - Reference : https://developer.android.com/studio/build/multidex#mdex-gradle

I know I am late for the answer, but, I am sure that this problem is caused by only a single dependency mostly, 'com.google.android.gms:play-services'. Please read the full answer for better understanding of problem, and solution.
In my case, I was using 'com.google.android.gms:play-services-location:21.0.1' which is the latest version of it, by the time I am writing this answer. It is having wayy too many method count.
My only motive to use it was, for fetching location from user's device. Google recommends using play-services-location only for fetching location, so I did not want to replace this dependency for getting my work done.
So, after numerous google searches, I found,
you can downgrade the version
to some previous stable version, to get your job done. And for my case, the best suited version for me came out to be 17.1.0. So I recommend you to use this specific version only, if your usecase to use play-services-location is exactly like mine.
Do these changes
implementation 'com.google.android.gms:play-services-location:21.0.1'
to
implementation 'com.google.android.gms:play-services-location:17.1.0'
Nonetheless, there is always option to enable multidexing in your code, but, that is the most inefficient way to solve this problem IMO.
If you can find the root cause of which dependency is maxing out your dex file size by large
method count, then I guess you should tweak, or replace that
dependency.

google maps api sdk version error?

It's my code sample. When I firstly build my code, it results in so-called dex error. I added multiDexEnabled property to my gradle setting, but it results in java heap memory overflow. I increased its max size, and finally got builded. However, another error occurred...... what is the problem? android adk version?
apply plugin: 'com.android.application'
android {
compileSdkVersion 24
buildToolsVersion "24.0.2"
defaultConfig {
applicationId "belobster.earthquakealert"
minSdkVersion 14
targetSdkVersion 24
versionCode 1
versionName "1.0"
multiDexEnabled true
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
dexOptions {
javaMaxHeapSize "2g"
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:24.2.1'
compile 'com.google.android.gms:play-services:9.6.1'
}
emulator image.

Check whether play services is available on the emulator, you should consider using physical device for these kind of testing purposes since maps require location services quite often.

download gapps-lp-20141109-signed and install in genymotion

If you want to test it into Genymotion only then , Genymotion provide support for play service
So please check it. It's work for me.
Thank you.

App does not open in lower api version phones

Need a bit of help here!, I have built an application with min api level 15 and target api level 23, now the problem is when i deploy the app on to a phone with api 19 or any phone less than api 22 the app crashes on start up. Please help me out guys? I tried adding permissions in the manifest file but in the end it would be overriden by the build.gradle(Module App) file. I am confused with it and trying to resolve it. Please help me out!
Thanks in Advance!
plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion "23.0.3"
defaultConfig {
applicationId "com.something.sampleapp"
minSdkVersion 15
targetSdkVersion 23
versionCode 1
versionName "1.0"
multiDexEnabled true
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
productFlavors {
}
}
dependencies {
compile fileTree(include: '*.jar', dir: 'libs')
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.4.0'
compile 'com.android.support:design:23.4.0'
compile 'com.mcxiaoke.volley:library-aar:1.0.0'
compile 'com.google.android.gms:play-services:9.0.1'
}

i had the same problem that is caused by Firebase when tested under API 23.
check out the link :
Getting Exception java.lang.NoClassDefFoundError: com.google.firebase.FirebaseOptions after updating to the new firebase

Try this; I hope it helps you:
Go to Settings
Click on build, execution and deployment
After that you find instant run click on that
Uncheck the enable instant run to hot swap code/resource

check if you installed SDK 19 in your android studio, i had the same issue with api 17 and its solved after installing the SDK

Android API level - gradle compiles - will it run?

I changed the API level in my android project for test purposes from 22 down to 7 in the build.gradle file.
Gradle has no problems to build the project and it runs on my (Android 5.1 OS) withouth problems.
Does the successfull build indicates the app would run without problems on lower OS (down to API level 7)? If not - how can I check which API is the lowest appropriate for my application?
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion "23.0.2"
defaultConfig {
applicationId "com.myapplication"
minSdkVersion 7
targetSdkVersion 23
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.2.0'
compile 'com.android.support:design:23.2.0'
}

The Gradle tooling, especially Lint, is nowadays very good to figure out whether or not your minSdkVersion really works for your app and will usually block a release build in the lintVitalRelease task when you use API that is not available on your min SDK level.
And of course, you always could (and should) create an API level 7 emulator and test-drive your app there as well. Even if it does not crash right away, some things might behave weird / different or might plainly be not working or visible at all, because compat API calls you were using have been converted to noops on lower API levels.

org.apache.http jar class not found in android studio projects

i include following jars see below image.
I want to integrate json web service so i import below jars
apache-mim44j-0.-6.jar
gson-2.1.jar
httpmime-4.0.1.jar
json_simple-1.1.jar
build.gradle file
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion '22.0.1'
defaultConfig {
applicationId "pkg.android.myapp"
minSdkVersion 15
targetSdkVersion 23
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:23.0.1'
}
when i set above structure my jar file is not getting in my class file any idea how can i solve this problem?your all suggestions are appreciable.
EDIT
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion '22.0.1'
defaultConfig {
applicationId "pkg.android.myapp"
minSdkVersion 15
targetSdkVersion 23
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
android {
useLibrary 'org.apache.http.legacy'
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:23.0.1'
}

Apache HTTP Client was removed since API level 23:
This preview removes support for the Apache HTTP client. If your app
is using this client and targets Android 2.3 (API level 9) or higher,
use the HttpURLConnection class instead. This API is more efficient
because it reduces network use through transparent compression and
response caching, and minimizes power consumption. To continue using
the Apache HTTP APIs, you must first declare the following
compile-time dependency in your build.gradle file:
android {
useLibrary 'org.apache.http.legacy'
}
Android is moving away from OpenSSL to the BoringSSL library. If
you’re using the Android NDK in your app, don't link against
cryptographic libraries that are not a part of the NDK API, such as
libcrypto.so and libssl.so. These libraries are not public APIs, and
may change or break without notice across releases and devices. In
addition, you may expose yourself to security vulnerabilities.
Instead, modify your native code to call the Java cryptography APIs
via JNI or to statically link against a cryptography library of your
choice.
Reference:
https://developer.android.com/preview/behavior-changes.html#behavior-apache-http-client

You can use this
link to download all libs. and then include
httpclient-4.5.1.jar
httpcore-4.4.3.jar
and if get confilcts use these lines in buil.gradel
android {
packagingOptions {
exclude 'META-INF/DEPENDENCIES'
exclude 'META-INF/NOTICE'
exclude 'META-INF/LICENSE'
}
}
if get any more, click on highlited import and Alt+Enter.
got solved by this