![]() Reducing your app code dependencies can often help A common but problematic pattern is to include a very large libraryīecause a few utility methods were useful. Review your app's direct and transitive dependencies Consider whether the value of any large library dependency you include in your app outweighs the amount of codeīeing added to the app. The following strategies can help you avoid hitting the DEX reference limit: To reduce the total number of references called by your app code, including methods defined by Since this optimization is applied only when deploying your app usingĪndroid Studio, you might still need to configure your release buildīefore configuring your app to enable use of 64K or more method references, take steps This includes enabling multidex when the target devices are runningĪndroid 5.0 and higher. ![]() The build is optimized for the target devices you deploy to. Note: When running your app using Android Studio, Runtime, read Android Runtime (ART) and Dalvik. ![]() Is 21 or higher, multidex is enabled by default and you don't need the multidex library. Performs pre-compilation at app install time, scanning forĬlasses N.dex files and compiling them into a singleĮxecution by the Android device. Natively supports loading multiple DEX files from APK files. Multidex support for Android 5.0 and higherĪndroid 5.0 (API level 21) and higher uses a runtime called ART that To view the current versions for this library, seeįor more details, see the section about how to Manages access to the additional DEX files and the code they contain. This library becomes part of the primary DEX file of your app and then Implementation("androidx.multidex:multidex:$multidex_version") Implementation "androidx.multidex:multidex:$multidex_version" Limitation, add the multidex library to the module-level adle or By default, Dalvik limits apps to a singleĬx bytecode file per APK. Versions of the platform prior to Android 5.0 (API level 21) use the Dalvik Because 65,536 is equal to 64x1024, this limit is referred to as the The Dalvik Executable specification limits the total number of methods thatĬan be referenced within a single DEX file to 65,536-including Androidįramework methods, library methods, and methods in your own code.Ĭontext of computer science, the term kilo, or K, denotes 1024 (orĢ^10). About the 64K reference limitĪndroid app (APK) files contain executable bytecode files in the formĮxecutable (DEX) files, which contain the compiled code used to run your app. This page explains how to move past this limitation byĮnabling an app configuration known as multidex, which allows your app Invoked by the code within a single Dalvik Executable (DEX) bytecode file. Represents the total number of references that can be ![]() These error conditions display a common number: 65536. Unable to execute dex: method ID not in : 65536 Older versions of the build system report a different error, which is an indication of the same Too many field references: 131000 max is 65536. Indicates your app has reached the limit of the Android build architecture: Libraries it references exceed 65,536 methods, you encounter the following build error that If your app has a minSdk of API 20 or lower and your app and the
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