Flutter问题汇总

1、Building flutter tool...问题

2、flutter pub get卡死

网络问题导致:

export PUB_HOSTED_URL=https://pub.flutter-io.cn
export FLUTTER_STORAGE_BASE_URL=https://storage.flutter-io.cn

3、Waiting for another flutter command to release the startup lock...

等待另一个flutter命令释放启动锁,如果想终止上一个命令锁:

sudo kill $(ps aux | grep flutter | grep -v grep  | awk '{print $2}')

4、Finished with error: Failed to establish connection with the application instance in Chrome.

This can happen if the websocket connection used by the web tooling is unable to correctly establish a connection, for example due to a firewall.

解决：127.0.0.1 localhost

image.png

5、Exception: Invalid image data

图片数据无效,检查url是否是有效的jpg下载地址

Image.network(
              imgList[index]["url"],
              fit: BoxFit.fill,
            );

6、Bad state: Insecure HTTP is not allowed by platform：http：//

IOS 和 Android 9.0 对网络请求做了一些限制，不能直接访问 Http 域名的地址

• android解决

network_secturity

• IOS解决

NSAppTransportSecurity
        
            NSAllowsArbitraryLoads
            
        

info.plist

7、Automatically assigning platform iOS with version 9.0 on target Runner

ios/Podfile文件增加平台配置

 platform :ios, '9.0'

image.png