Android Studio常见问题集锦

╰半夏微凉° 2022-02-15 04:27 661阅读 0赞

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**1.Sync failed原因**

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1）依赖库版本号不匹配问题，appcompat的版本号问题或者constraint-layout版本号问题

dependencies {
        implementation fileTree(include: ['*.jar'], dir: 'libs')
        implementation 'com.android.support.constraint:constraint-layout:1.0.2'
        implementation 'com.android.support:appcompat-v7:26.1.0'
    }

2）gradle获取路径或者版本问题

gradle-wrapper.properties

distributionUrl=file:///C:/android/gradle-4.6-all.zip

3)maven本都仓库没有添加

// Top-level build file where you can add configuration options common to all sub-projects/modules.
    
    buildscript {
    
        repositories {
            maven {
                url uri('C:\\android\\maven')
            }
            google()
        }
        dependencies {
            classpath 'com.android.tools.build:gradle:3.1.2'
    
    
            // NOTE: Do not place your application dependencies here; they belong
            // in the individual module build.gradle files
        }
    }
    
    allprojects {
        repositories {
            maven {
                url uri('C:\\android\\maven')
            }
            google()
        }
    }
    
    task clean(type: Delete) {
        delete rootProject.buildDir
    }

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2.提示有些包不存在

![20200210110439181.png][]

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在build.gradel（module）中添加

useLibrary 'org.apache.http.legacy'

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3N5bm9sYQ_size_16_color_FFFFFF_t_70][]

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3.移植代码编译时提示编码问题

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在build.gradel（module）中添加

compileOptions {
        encoding "UTF-8"
    }

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[20200210110439181.png]: /images/20220215/1012594df8c84b7ea2309596d22bdd39.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3N5bm9sYQ_size_16_color_FFFFFF_t_70]: /images/20220215/90c5805597b140eba3cb4e55800a6823.png