我使用flutter制作应用程序。当我在控制台中执行flutte run时(我在控制台中使用Tor作为http和https代理会导致Google限制和某些国家/地区对美国的制裁)，但是却出现如下错误:
[iraj@iraj-pc app]$ flutter run
Launching lib/main.dart on LG K520 in debug mode...
Initializing gradle... 0.5s
Resolving dependencies...
Error running gradle: Exit code 1 from: /home/iraj/Public/dart/exercise_flutter/app/android/gradlew app:properties:
NDK is missing a "platforms" directory.
If you are using NDK, verify the ndk.dir is set to a valid NDK directory. It is currently set to /home/iraj/Public/bin/android-sdk-linux/ndk-bundle.
If you are not using NDK, unset the NDK variable from ANDROID_NDK_HOME or local.properties to remove this warning.
Incremental java compilation is an incubating feature.
Failed to validate the XML for the repository at URL 'https://dl.google.com/android/repository/repository2-1.xml/repository-12.xml'
Errors during XML parse:
White spaces are required between publicId and systemId.
org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 62; White spaces are required between publicId and systemId.
javax.xml.bind.UnmarshalException
- with linked exception:
[org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 62; White spaces are required between publicId and systemId.]
Additionally, the fallback loader failed to parse the XML.
Failed to validate the XML for the repository at URL 'https://dl.google.com/android/repository/repository2-1.xml/repository-12.xml/sys-img.xml'
Failed to validate the XML for the repository at URL 'https://dl.google.com/android/repository/repository2-1.xml/repository-12.xml/addon.xml'
Errors during XML parse:
White spaces are required between publicId and systemId.
org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 62; White spaces are required between publicId and systemId.
javax.xml.bind.UnmarshalException
- with linked exception:
[org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 62; White spaces are required between publicId and systemId.]
Additionally, the fallback loader failed to parse the XML.
BUILD FAILED
Total time: 2 mins 24.903 secs
[Fatal Error] support-annotations-25.4.0.pom:2:10: Already seen doctype.
[Fatal Error] support-annotations-25.4.0.pom:2:10: Already seen doctype.
FAILURE: Build failed with an exception.
* Where:
Build file '/home/iraj/Public/dart/exercise_flutter/app/android/build.gradle' line: 26
* What went wrong:
A problem occurred evaluating root project 'android'.
> A problem occurred configuring project ':app'.
> Could not resolve all dependencies for configuration ':app:_debugAndroidTestApkCopy'.
> Could not resolve com.android.support:support-annotations:25.4.0.
Required by:
project :app
> Could not resolve com.android.support:support-annotations:25.4.0.
> Could not parse POM https://maven.google.com/com/android/support/support-annotations/25.4.0/support-annotations-25.4.0.pom
> Already seen doctype.
> Could not resolve com.android.support:support-annotations:25.4.0.
Required by:
project :app > com.android.support.test:runner:0.5
> Could not resolve com.android.support:support-annotations:25.4.0.
> Could not parse POM https://maven.google.com/com/android/support/support-annotations/25.4.0/support-annotations-25.4.0.pom
> Already seen doctype.
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
Running 'gradlew assembleDebug'...
[Fatal Error] support-annotations-25.4.0.pom:2:10: Already seen doctype.
[Fatal Error] support-annotations-25.4.0.pom:2:10: Already seen doctype.
FAILURE: Build failed with an exception.
* Where:
Build file '/home/iraj/Public/dart/exercise_flutter/app/android/build.gradle' line: 26
* What went wrong:
A problem occurred evaluating root project 'android'.
> A problem occurred configuring project ':app'.
> Could not resolve all dependencies for configuration ':app:_debugAndroidTestApkCopy'.
> Could not resolve com.android.support:support-annotations:25.4.0.
Required by:
project :app
> Could not resolve com.android.support:support-annotations:25.4.0.
> Could not parse POM https://maven.google.com/com/android/support/support-annotations/25.4.0/support-annotations-25.4.0.pom
> Already seen doctype.
> Could not resolve com.android.support:support-annotations:25.4.0.
Required by:
project :app > com.android.support.test:runner:0.5
> Could not resolve com.android.support:support-annotations:25.4.0.
> Could not parse POM https://maven.google.com/com/android/support/support-annotations/25.4.0/support-annotations-25.4.0.pom
> Already seen doctype.
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
Gradle build failed: 1
flutter 版本:
flutter --version
Flutter • channel alpha • https://github.com/flutter/flutter.git
Framework • revision b156a0f054 (2 weeks ago) • 2017-08-11 22:01:40 -0700
Engine • revision fef7d827d6
Tools • Dart 1.25.0-dev.9.0
Dart 版本:
[iraj@iraj-pc app]$ dart --version
Dart VM version: 1.24.2 (Thu Jun 22 08:43:26 2017) on "linux_x64"
android目标:
[iraj@iraj-pc app]$ android list target
Available Android targets:
----------
id: 1 or "android-23"
Name: Android 6.0
Type: Platform
API level: 23
Revision: 3
Skins: HVGA, QVGA, WQVGA400, WQVGA432, WSVGA, WVGA800 (default), WVGA854, WXGA720, WXGA800, WXGA800-7in
Tag/ABIs : no ABIs.
----------
id: 2 or "android-24"
Name: Android 7.0
Type: Platform
API level: 24
Revision: 2
Skins: HVGA, QVGA, WQVGA400, WQVGA432, WSVGA, WVGA800 (default), WVGA854, WXGA720, WXGA800, WXGA800-7in
Tag/ABIs : default/armeabi-v7a
----------
id: 3 or "android-25"
Name: Android 7.1.1
Type: Platform
API level: 25
Revision: 3
Skins: HVGA, QVGA, WQVGA400, WQVGA432, WSVGA, WVGA800 (default), WVGA854, WXGA720, WXGA800, WXGA800-7in
Tag/ABIs : google_apis/armeabi-v7a
----------
id: 4 or "Google Inc.:Google APIs:23"
Name: Google APIs
Type: Add-On
Vendor: Google Inc.
Revision: 1
Description: Android + Google APIs
Based on Android 6.0 (API level 23)
Libraries:
* com.android.future.usb.accessory (usb.jar)
API for USB Accessories
* com.google.android.media.effects (effects.jar)
Collection of video effects
* com.google.android.maps (maps.jar)
API for Google Maps
Skins: HVGA, QVGA, WQVGA400, WQVGA432, WSVGA, WVGA800 (default), WVGA854, WXGA720, WXGA800, WXGA800-7in
Tag/ABIs : no ABIs.
在Maven和Jcenter存储库中甚至找不到
support-annotations-25.4.0。问题是什么？
最佳答案
Android Support Library Setup docs提到您可以通过Android SDK管理器获得支持库，尽管该功能将很快删除。
关于gradle - 无法解析com.android.support :support-annotations:25. 4.0，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/45928322/