Error:java.lang.OutOfMemoryError: GC overhead limit exceeded error on Telegram

Question

我是 Android 的新手，正在尝试运行 Telegram source code provided on GitHub Android，但我遇到了一些可怕的错误，经过几天的谷歌搜索后，我什么也没找到全部！

我只是按照说明操作，但它不起作用。错误说 Error:java.lang.OutOfMemoryError: GC overhead limit exceeded 但即使在增加最大堆大小之后，它也会抛出相同的错误，但会抛出更多内存。

BuildVars.java:

public class BuildVars {
    public static boolean DEBUG_VERSION = false;
    public static int BUILD_VERSION = 821;
    public static String BUILD_VERSION_STRING = "3.10";
    public static String APP_HASH = "94706fdc9f5d86e2c3749bd8d0a2559e"; //obtain your own APP_HASH at https://core.telegram.org/api/obtaining_api_id
    public static String HOCKEY_APP_HASH = "f7a81fd2b9cd40d3a8687311defcfe88";
    public static String HOCKEY_APP_HASH_DEBUG = "f7a81fd2b9cd40d3a8687311defcfe88";
    public static String GCM_SENDER_ID = "760348033672";
    public static String SEND_LOGS_EMAIL = "ssiasoft@gmail.com";
    public static String BING_SEARCH_KEY = "afb6312cb4ed4e78b8dfd177c6d174af"; //obtain your own KEY at https://www.bing.com/dev/en-us/dev-center
    public static String FOURSQUARE_API_KEY = "HNRPHATHVHEBKXMVVLNTYXOGGUHPUSGVMB33TP2XNOFWMGGV"; //obtain your own KEY at https://developer.foursquare.com/
    public static String FOURSQUARE_API_ID = "A9ABCD"; //obtain your own API_ID at https://developer.foursquare.com/
    public static String FOURSQUARE_API_VERSION = "20150326";
}

这是完整的错误消息日志：

:TMessagesProj:transformClasses_enhancedWithInstant+reloadDexForArmDebug UP-TO-DATE
:TMessagesProj:incrementalArmDebugTasks
:TMessagesProj:prePackageMarkerForArmDebug
:TMessagesProj:fastDeployArmDebugExtractor
:TMessagesProj:generateArmDebugInstantRunAppInfo
:TMessagesProj:transformClassesWithDexForArmDebug
To run dex in process, the Gradle daemon needs a larger heap.
It currently has approximately 910 MB.
For faster builds, increase the maximum heap size for the Gradle daemon to more than 2048 MB.
To do this set org.gradle.jvmargs=-Xmx2048M in the project gradle.properties.
For more information see https://docs.gradle.org/current/userguide/build_environment.html
Error:UNEXPECTED TOP-LEVEL ERROR:
Error:java.lang.OutOfMemoryError: GC overhead limit exceeded
:TMessagesProj:transformClassesWithDexForArmDebug FAILED
Error:Execution failed for task ':TMessagesProj:transformClassesWithDexForArmDebug'.
> com.android.build.api.transform.TransformException: java.lang.RuntimeException: com.android.ide.common.process.ProcessException: java.util.concurrent.ExecutionException: com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command 'C:\Program Files\Java\jdk1.8.0_40\bin\java.exe'' finished with non-zero exit value 3
Information:BUILD FAILED
Information:Total time: 13 mins 5.264 secs
Information:3 errors
Information:0 warnings

有谁知道为什么会发生这种情况以及如何做到这一点运行？

我将非常感谢任何拥有有效 Telegram 项目并与我分享该代码的人。

Answer 1

问题

如日志消息中所述，Gradle 需要更多内存，因为它使用 Dex In Process 功能。

To run dex in process, the Gradle daemon needs a larger heap. It has approximately 910 MB. For faster builds, increase the maximum heap size for the Gradle daemon to more than 2048 MB.To do this set org.gradle.jvmargs=-Xmx2048M in the project gradle.properties.

Gradle 本身是用 Java 编写的，并且像任何其他 Java 程序一样，它拥有的内存量受堆大小的限制。

Heapsize, Stacksize and Garbage Collection Fundamentals

解决方案

选项 1 - 增加堆大小

要增加堆大小，请增加堆的最大可用量 - 设置 JVM 选项 -Xmx。尝试按照日志消息的建议设置 2GB：-Xmx2048M。在Gradle中，通过在项目gradle.properties中写org.gradle.jvmargs=-Xmx2048M来完成。该文件位于 build.gradle 旁边。如果没有，请手动创建一个。

之后，如果错误仍然存在，请尝试明确告诉 Dex In Process 功能它现在有多少内存 - 将其添加到 build.gradle（app模块）。请注意，它应该小于 Gradle 可用的内存总量，即如果 Gradle 有 2GB，则为 Dex In Process 设置 1GB：

android {
 ....
 dexOptions {
    // To prevent OutOfMemory
    javaMaxHeapSize "1G"
  }
}

尝试更大的值，实际值取决于项目。

选项 2 - 关闭进程中的 Dex 功能

尽管据说如果没有此功能构建速度会变慢，请尝试将其关闭。

android {
    // ...
    dexOptions {
        dexInProcess = false
    }
}

Error:java.lang.OutOfMemoryError: GC overhead limit exceeded error on Telegram