记录一个Flutter运行的异常FAILURE: Build failed with an exception. What went wrong: A problem occurred config
运行一个Flutter项目时提示：Launching lib\main.dart on 21091116C in debug mode…Warning: Observed package id ‘build-tools;30.0.3’ in inconsistent location ‘D:\Android\android-sdk\build-tools\30.0.3-2’ (Expected ‘
异常内容
运行一个Flutter项目时提示：
Launching lib\main.dart on 21091116C in debug mode…
Warning: Observed package id ‘build-tools;30.0.3’ in inconsistent location ‘D:\Android\android-sdk\build-tools\30.0.3-2’ (Expected ‘D:\Android\android-sdk\build-tools\30.0.3’)
Warning: Already observed package id ‘build-tools;30.0.3’ in ‘D:\Android\android-sdk\build-tools\30.0.3’. Skipping duplicate at ‘D:\Android\android-sdk\build-tools\30.0.3-2’
Warning: Observed package id ‘build-tools;30.0.3’ in inconsistent location ‘D:\Android\android-sdk\build-tools\30.0.3-3’ (Expected ‘D:\Android\android-sdk\build-tools\30.0.3’)
Warning: Already observed package id ‘build-tools;30.0.3’ in ‘D:\Android\android-sdk\build-tools\30.0.3’. Skipping duplicate at ‘D:\Android\android-sdk\build-tools\30.0.3-3’
Warning: Observed package id ‘build-tools;30.0.3’ in inconsistent location ‘D:\Android\android-sdk\build-tools\30.0.3-2’ (Expected ‘D:\Android\android-sdk\build-tools\30.0.3’)
Warning: Already observed package id ‘build-tools;30.0.3’ in ‘D:\Android\android-sdk\build-tools\30.0.3’. Skipping duplicate at ‘D:\Android\android-sdk\build-tools\30.0.3-2’
Warning: Observed package id ‘build-tools;30.0.3’ in inconsistent location ‘D:\Android\android-sdk\build-tools\30.0.3-3’ (Expected ‘D:\Android\android-sdk\build-tools\30.0.3’)
Warning: Already observed package id ‘build-tools;30.0.3’ in ‘D:\Android\android-sdk\build-tools\30.0.3’. Skipping duplicate at ‘D:\Android\android-sdk\build-tools\30.0.3-3’
Warning: Failed to download any source lists!
Warning: IO exception while downloading manifest:
Warning: IO exception while downloading manifest:
java.net.ConnectException: Connection refused: connect
java.net.ConnectException: Connection refused: connect
at java.base/sun.nio.ch.Net.connect0(Native Method)
at java.base/sun.nio.ch.Net.connect0(Native Method)
at java.base/sun.nio.ch.Net.connect(Net.java:579)
at java.base/sun.nio.ch.Net.connect(Net.java:579)
at java.base/sun.nio.ch.Net.connect(Net.java:568)
at java.base/sun.nio.ch.Net.connect(Net.java:568)
at java.base/sun.nio.ch.NioSocketImpl.connect(NioSocketImpl.java:588)
at java.base/sun.nio.ch.NioSocketImpl.connect(NioSocketImpl.java:588)
at java.base/java.net.Socket.connect(Socket.java:633)
at java.base/java.net.Socket.connect(Socket.java:633)
at java.base/java.net.Socket.connect(Socket.java:583)
at java.base/java.net.Socket.connect(Socket.java:583)
at java.base/sun.net.NetworkClient.doConnect(NetworkClient.java:183)
at java.base/sun.net.NetworkClient.doConnect(NetworkClient.java:183)
at java.base/sun.net.www.http.HttpClient.openServer(HttpClient.java:531)
at java.base/sun.net.www.http.HttpClient.openServer(HttpClient.java:531)
at java.base/sun.net.www.http.HttpClient$1.run(HttpClient.java:590)
at java.base/sun.net.www.http.HttpClient$1.run(HttpClient.java:590)
at java.base/sun.net.www.http.HttpClient$1.run(HttpClient.java:588)
at java.base/sun.net.www.http.HttpClient
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1.run(HttpClient.java:588) at java.base/java.security.AccessController.doPrivileged(AccessController.java:569) at java.base/java.security.AccessController.doPrivileged(AccessController.java:569) at java.base/sun.net.www.http.HttpClient.privilegedOpenServer(HttpClient.java:587) at java.base/sun.net.www.http.HttpClient.openServer(HttpClient.java:631) at java.base/sun.net.www.http.HttpClient.privilegedOpenServer(HttpClient.java:587) at java.base/sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:266) at java.base/sun.net.www.http.HttpClient.openServer(HttpClient.java:631) at java.base/sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:380) at java.base/sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:266) at java.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:193) at java.base/sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:380) at java.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1287) at java.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:193) at java.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1128) at java.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1287) at java.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:179) at java.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1128) at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:142) at java.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:179) at com.android.sdklib.repository.legacy.remote.internal.DownloadCache.openUrl(DownloadCache.java:245) at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:142) at com.android.sdklib.repository.legacy.remote.internal.DownloadCache.downloadAndCache(DownloadCache.java:622) at com.android.sdklib.repository.legacy.remote.internal.DownloadCache.openUrl(DownloadCache.java:245) at com.android.sdklib.repository.legacy.remote.internal.DownloadCache.openCachedUrl(DownloadCache.java:453) at com.android.sdklib.repository.legacy.remote.internal.DownloadCache.downloadAndCache(DownloadCache.java:622) at com.android.sdklib.repository.legacy.LegacyDownloader.downloadAndStream(LegacyDownloader.java:65) at com.android.sdklib.repository.legacy.remote.internal.DownloadCache.openCachedUrl(DownloadCache.java:453) at com.android.repository.impl.downloader.LocalFileAwareDownloader.downloadAndStream(LocalFileAwareDownloader.java:51) at com.android.sdklib.repository.legacy.LegacyDownloader.downloadAndStream(LegacyDownloader.java:65) at com.android.repository.impl.manager.RemoteRepoLoaderImpl.lambda
1.run(HttpClient.java:588)atjava.base/java.security.AccessController.doPrivileged(AccessController.java:569)atjava.base/java.security.AccessController.doPrivileged(AccessController.java:569)atjava.base/sun.net.www.http.HttpClient.privilegedOpenServer(HttpClient.java:587)atjava.base/sun.net.www.http.HttpClient.openServer(HttpClient.java:631)atjava.base/sun.net.www.http.HttpClient.privilegedOpenServer(HttpClient.java:587)atjava.base/sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:266)atjava.base/sun.net.www.http.HttpClient.openServer(HttpClient.java:631)atjava.base/sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:380)atjava.base/sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:266)atjava.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:193)atjava.base/sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:380)atjava.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1287)atjava.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:193)atjava.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1128)atjava.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1287)atjava.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:179)atjava.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1128)atjava.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:142)atjava.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:179)atcom.android.sdklib.repository.legacy.remote.internal.DownloadCache.openUrl(DownloadCache.java:245)atjava.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:142)atcom.android.sdklib.repository.legacy.remote.internal.DownloadCache.downloadAndCache(DownloadCache.java:622)atcom.android.sdklib.repository.legacy.remote.internal.DownloadCache.openUrl(DownloadCache.java:245)atcom.android.sdklib.repository.legacy.remote.internal.DownloadCache.openCachedUrl(DownloadCache.java:453)atcom.android.sdklib.repository.legacy.remote.internal.DownloadCache.downloadAndCache(DownloadCache.java:622)atcom.android.sdklib.repository.legacy.LegacyDownloader.downloadAndStream(LegacyDownloader.java:65)atcom.android.sdklib.repository.legacy.remote.internal.DownloadCache.openCachedUrl(DownloadCache.java:453)atcom.android.repository.impl.downloader.LocalFileAwareDownloader.downloadAndStream(LocalFileAwareDownloader.java:51)atcom.android.sdklib.repository.legacy.LegacyDownloader.downloadAndStream(LegacyDownloader.java:65)atcom.android.repository.impl.manager.RemoteRepoLoaderImpl.lambdafetchPackages
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0(RemoteRepoLoaderImpl.java:138) at com.android.repository.impl.downloader.LocalFileAwareDownloader.downloadAndStream(LocalFileAwareDownloader.java:51) at java.base/java.util.concurrent.Executors
0(RemoteRepoLoaderImpl.java:138)atcom.android.repository.impl.downloader.LocalFileAwareDownloader.downloadAndStream(LocalFileAwareDownloader.java:51)atjava.base/java.util.concurrent.ExecutorsRunnableAdapter.call(Executors.java:539)
at com.android.repository.impl.manager.RemoteRepoLoaderImpl.lambda$fetchPackages
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at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor
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Worker.run(ThreadPoolExecutor.java:635) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.lang.Thread.run(Thread.java:833) at java.base/java.util.concurrent.ThreadPoolExecutor
Worker.run(ThreadPoolExecutor.java:635)atjava.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)atjava.base/java.lang.Thread.run(Thread.java:833)atjava.base/java.util.concurrent.ThreadPoolExecutorWorker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:833)
Warning: Still waiting for package manifests to be fetched remotely.
FAILURE: Build failed with an exception.
- What went wrong:
A problem occurred configuring project ‘:rive_common’.
NDK not configured. Download it with SDK manager. Preferred NDK version is ‘21.4.7075529’.
- 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 get full insights.
- Get more help at https://help.gradle.org
BUILD FAILED in 2s
Running Gradle task ‘assembleDebug’… 3.3s
Exception: Gradle task assembleDebug failed with exit code 1
信息显示“NDK未配置。用SDK管理器下载它。首选的NDK版本是“21.4.7075529”。”
这个错误的主要原因是Android NDK (Native Development Kit) 没有配置。NDK 是一套工具，允许你使用 C 和 C++ 等语言来编写 Android 应用的部分。
可以按照以下步骤来解决这个问题：
- 打开 Android Studio。
- 点击顶部菜单的 “Tools”，然后选择 “SDK Manager”。
- 在弹出的窗口中，点击 “SDK Tools” 标签。
- 在列表中找到 “NDK (Side by side)”，并勾选它。如果已经勾选，那么请确保其版本与错误信息中的版本一致。
- 点击 “OK” 或 “Apply” 来下载并安装 NDK。
完成以上步骤后，可以正常运行了。
关于 NDK
NDK，全称为 Native Development Kit，是 Android 的一个工具集，它允许开发者使用 C 和 C++ 等本地语言来编写 Android 应用的部分代码。
NDK 的主要用途包括：
-
性能关键部分的编程：对于一些计算密集型的应用，如游戏或者图像处理，使用本地语言（C/C++）可以提供更高的执行效率。
-
复用代码库：如果你有大量的 C/C++ 代码库，并且想在 Android 应用中复用这些代码，那么 NDK 就非常有用。
-
调用本地 API：有些系统级别的 API 只能通过本地语言调用，这时候就需要使用 NDK。
不过使用 NDK 需要处理更多的跨平台兼容性问题，而且本地代码的调试也比 Java 或 Kotlin 更困难。此外，本地代码也不能自动享受到 Java 语言的一些优点，如垃圾回收和内存管理。因此，除非有明确的需求，否则一般不建议在 Android 应用中使用 NDK。
腾讯云面向开发者汇聚海量精品云计算使用和开发经验，营造开放的云计算技术生态圈。
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