[移动开发]Flutter打包的时候的错误解决（mac）-更新中

错误1；

* What went wrong:                                                      
Execution failed for task ':app:validateSigningRelease'.                
> Keystore file 'xxxxxxxxx/android/app/android/app/key/key.jks' not found for signing config 'release'.
                                                                        
* 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  

错误2:

* What went wrong:                                                      
Execution failed for task ':app:packageRelease'.                        
> A failure occurred while executing com.android.build.gradle.tasks.PackageAndroidArtifact$IncrementalSplitterRunnable
   > com.android.ide.common.signing.KeytoolException: Failed to read key sign from store 'xxxxxxxxx/android/app/android/app/key/key.jks' : Invalid keystore format
                                                                        
* 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    

解决方法：

出现这样的问题，一般都是jks文件没有获取对，首先可以先检查build.gradle里面对配置是否写正确，可以参考一下我的写法。

///配置打包文件
def keystorePropertiesFile = rootProject.file("key.properties")
def keystoreProperties = new Properties()
keystoreProperties.load(new FileInputStream(keystorePropertiesFile))

   ///配置打包文件
        signingConfigs {
                release {
                    // keyAlias keystoreProperties['sign']
                    // keyPassword keystoreProperties['zxcvbnm']
                    // storeFile file(keystoreProperties['/Users/ggboy/work/practice/noob_program/android/app/key/key.jks'])
                    // storePassword keystoreProperties['zxcvbnm']
                   keyAlias 'sign'
                   keyPassword 'zxcvbnm'
                   storeFile file('你自己的签名路径/key.jks')
                   storePassword 'zxcvbnm'

                }
         debug {
           keyAlias keystoreProperties['keyAlias']
           keyPassword keystoreProperties['keyPassword']
           storeFile file(keystoreProperties['你自己的签名路径/key.jks'])
           storePassword keystoreProperties['storePassword']
        }
    }
    buildTypes {
        release {     
            signingConfig signingConfigs.release
            minifyEnabled true
            useProguard true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        } 
    }

重点来了
上面的配置文件，signingConfigs一定要写在buildTypes之前。
如果你确认，你的签名文件 和 build.gradle里面的配置完全正确的话，接下来这样做，

• 你的签名不要放在项目文件夹里面，自己在其他盘新建文件夹存放签名，
• 使用绝对地址。

  storeFile file(keystoreProperties['其他盘符的绝对路径/key.jks'])

这样的话基本都可以正确打包。

错误三

* What went wrong:
Execution failed for task ':flutter_baidu_mapapi_base:stripReleaseDebugSymbols'.
> No version of NDK matched the requested version 20.0.5594570. Versions available locally: 22.1.7171670

解决方案：

出现这个问题，就是Ndk版本不匹配，本地的版本是22的，但是项目需求是20的，降低版本就可以。
看我操作：

1. 在as中打开
   
2. 选择自己所需要的版本，就可以。