Flutter编译APK半小时卡住原因

编译基础知识

最早的计算机用的纸带输入，纸带上有孔表示1，没孔表示0，这些纸带要变成实际的计算机指令，需要一个转换的过程，转换就是编译。早期的计算机环境比较简单，转换过程也很简单，随着各类新技术的出现，编译过程越来越复杂，编译环境越来越多面，带来的困惑也越来越多。

Flutter编译APK半小时卡住原因背景

Flutter是兼容多平台开发的UI工具包，支持多平台多端开发是Flutter的优势。在知道我要开发手机App的意图后，AI推荐了Flutter，并生成了代码，给出了编译提示。我提示按下面命令行进行编译：

D:\cowapp>D:\flutter_windows_3.44.4-stable\bin\flutter build apk --release
Exception in thread "main" java.lang.RuntimeException: Timeout of 120000 reached waiting for exclusive access to file: C:\Users\huawei\.gradle\wrapper\dists\gradle-9.1.0-all\7wzd0jkjit61aq2p43wpjgij9\gradle-9.1.0-all.zip
        at org.gradle.wrapper.ExclusiveFileAccessManager.access(ExclusiveFileAccessManager.java:61)
        at org.gradle.wrapper.Install.createDist(Install.java:48)
        at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:128)
        at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:61)
Running Gradle task 'assembleRelease'...                          120.4s
[!] Gradle threw an error while downloading artifacts from the network.
Retrying Gradle Build: #1, wait time: 100ms
Exception in thread "main" java.lang.RuntimeException: Timeout of 120000 reached waiting for exclusive access to file: C:\Users\huawei\.gradle\wrapper\dists\gradle-9.1.0-all\7wzd0jkjit61aq2p43wpjgij9\gradle-9.1.0-all.zip
        at org.gradle.wrapper.ExclusiveFileAccessManager.access(ExclusiveFileAccessManager.java:61)
        at org.gradle.wrapper.Install.createDist(Install.java:48)
        at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:128)
        at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:61)
Running Gradle task 'assembleRelease'...                          120.3s
[!] Gradle threw an error while downloading artifacts from the network.
Gradle task assembleRelease failed with exit code 1

D:\cowapp>

手工放gradle.zip不行，改wrapper。#distributionUrl=https\://services.gradle.org/distributions/gradle-9.1.0-all.zip
distributionUrl=https://mirrors.cloud.tencent.com/gradle/gradle-9.1.0-all.zip


FAILURE: Build failed with an exception.

* What went wrong:
Timeout waiting to lock build logic queue. It is currently in use by another process.
Owner PID: 11812
Our PID: 10152
Owner Operation:
Our operation:
Lock file: D:\cowapp\android\.gradle\noVersion\buildLogic.lock

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to generate a Build Scan (Powered by Develocity).
> Get more help at https://help.gradle.org.

BUILD FAILED in 1m 5s
Running Gradle task 'assembleRelease'...                           66.0s
Gradle task assembleRelease failed with exit code 1

注意里面的核心提示，等待编译逻辑队列锁定，当前被其它进程使用。我当时不着急看其它事情了，另外对这环境也第一次用，看到提示查AI提示说要找占用进程并且要杀死进程，分析进程很麻烦，新手做不了，就是高手也要占时间，这是治表不治本的措施。

灵机一动

原来想是计算机休眠息屏可能会有影响，后来否认，不是这个导致卡。突然想到Trae软件还在运行，把Trae软件关闭，编译在几秒就完成了。原因Trae加载了一套编译环境，和命令行里的编译环境冲突，就编译不了。具体是Trae也加载了gradle进程，两个gradle进程争抢文件，导致编译卡住了。

AI再强大，有些环境也不是AI能完全预测的，学好软件开发基础，能抄也能想，才好解决问题。

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