Android开发问题汇总(一)

android, archives

1.Gradle使用代理服务器

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// /Users/<username>/.gradle/gradle.properties (Mac)
# Http Proxy
systemProp.http.proxyHost=www.somehost.org
systemProp.http.proxyPort=8080
systemProp.http.proxyUser=userid
systemProp.http.proxyPassword=password
systemProp.http.nonProxyHosts=*.nonproxyrepos.com|localhost

Reference:Gradle使用代理服务器

2.设置Gradle home

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// Mac OS X
Use local gradle distribution > Gradle home > /Applications/Android Studio.app/Contents/plugins/gradle

3.The project is using an unsupported version of Gradle

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The project is using an unsupported version of Gradle.
Please point to a supported Gradle version in the project's Gradle settings or in the project's Gradle wrapper (if applicable.)

Consult IDE log for more details (Help | Show Log)

4.Error:Error retrieving parent for item: No resource found that matches the given name ‘android:Theme.AppCompat.Light’.

5.Project'X' is missing required Java project ‘Y’

Solution: Open Java project ‘Y’

6.Unbound classpath container: ‘Default System Library’

Solution: Eclipse > Preferences > Java > Installed JREs > Add > Standar VM > Select JRE Directory

My Mac JRE Directory is here:/Library/Java/JavaVirtualMachines/jdk1.8.0_11.jdk/Contents/Home/

7.Eclipse Can’t detect Android Device

Solution: Disable device’s usb debuggin then enable, It then prompted me for authorization for that computer, select ok, and then it worked fine.

Reference:http://stackoverflow.com/questions/8799982/why-eclipse-can-not-detect-android-device

8.Unable to resolve target “Android-5”

Solution:Android SDK Manager > Android 1.6 (API 4) > Intall

Eclipse > Preferences… > Android > Apply > OK

Project > Properties > Android > Project Build Target

9.error: Error retrieving parent for item: No resource found that matches the given name ‘@android:TextAppearance.Material.SearchResult.Subtitle’.

Solution:Project > Properties > Android > Project Build Target > 21

Reference:http://stackoverflow.com/questions/26457096/appcompat-v7-r21-returning-error-in-values-xml

10.Android studio Offline document path

Solution:file:///Users/dongmeiliang/Library/Android/sdk/docs/index.html

Reference:http://stackoverflow.com/questions/4974309/android-sdk-and-developer-guide-offline-or-pdf

11.Error:Execution failed for task ‘:app:processDebugManifest’. Manifest merger failed : uses-sdk element cannot have a “tools:node” attribute

Solution:Add this line to uses-sdk tag like this:

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<uses-sdk
    tools:node="merge"   <----This line do the magic
    android:minSdkVersion="14"
    android:targetSdkVersion="19" />

And add the tools name space in manifest :

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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" .....
.../>

Reference:http://stackoverflow.com/questions/26688711/uses-sdk-element-cannot-have-a-toolsnode-attribute

12.Gradle DSL method not found: ‘runProguard’

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Error:(27, 0) Gradle DSL method not found: 'runProguard()'
**Possible causes:
The project 'Atomic4Mobile' may be using a version of Gradle that does not contain the method.
**Gradle settings**
The build file may be missing a Gradle plugin.
**Apply Gradle plugin**

Solution:runProguard was renamed to minifyEnabled in version 0.14.0.

Reference:http://stackoverflow.com/questions/27078075/gradle-dsl-method-not-found-runproguard

13.error “Library projects cannot set applicationId”

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Error: Library projects cannot set applicationId. applicationId is set to 'com.super.app' in default config.

Solution:Removing applicationId variable from the library’s build.gradle file should resolve the issue.

Reference:http://stackoverflow.com/questions/27374933/android-studio-1-0-and-error-library-projects-cannot-set-applicationid

14.How to increase the font size in Android Studio?

Solution: In mac book ,you can use two fingers to zoom in(increase font size) or zoom out for decrease font size, like when we zoomed image in mobilephone.

Reference:http://stackoverflow.com/questions/16590216/how-to-increase-the-font-size-in-android-studio

15.Eclipse report error when loading the SDK

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Error: Error parsing /Users/dongmeiliang/Library/Android/sdk/system-images/android-23/android-wear/armeabi-v7a/devices.xml
cvc-complex-type.2.4.d: Invalid content was found starting with element 'd:skin'. No child element is expected at this point.
Error: Error parsing /Users/dongmeiliang/Library/Android/sdk/system-images/android-23/android-wear/x86/devices.xml
cvc-complex-type.2.4.d: Invalid content was found starting with element 'd:skin'. No child element is expected at this point.
Error: Error parsing /Users/dongmeiliang/Library/Android/sdk/system-images/android-24/android-wear/armeabi-v7a/devices.xml
cvc-enumeration-valid: Value '280dpi' is not facet-valid with respect to enumeration '[ldpi, mdpi, tvdpi, hdpi, xhdpi, xxhdpi, xxxhdpi]'. It must be a value from the             enumeration.
Error: Error parsing /Users/dongmeiliang/Library/Android/sdk/system-images/android-24/android-wear/x86/devices.xml
cvc-enumeration-valid: Value '280dpi' is not facet-valid with respect to enumeration '[ldpi, mdpi, tvdpi, hdpi, xhdpi, xxhdpi, xxxhdpi]'. It must be a value from the             enumeration.
Error: Error parsing /Users/dongmeiliang/Library/Android/sdk/system-images/android-23/android-wear/armeabi-v7a/devices.xml
cvc-complex-type.2.4.d: Invalid content was found starting with element 'd:skin'. No child element is expected at this point.
Error: Error parsing /Users/dongmeiliang/Library/Android/sdk/system-images/android-23/android-wear/x86/devices.xml
cvc-complex-type.2.4.d: Invalid content was found starting with element 'd:skin'. No child element is expected at this point.
Error: Error parsing /Users/dongmeiliang/Library/Android/sdk/system-images/android-24/android-wear/armeabi-v7a/devices.xml
cvc-enumeration-valid: Value '280dpi' is not facet-valid with respect to enumeration '[ldpi, mdpi, tvdpi, hdpi, xhdpi, xxhdpi, xxxhdpi]'. It must be a value from the             enumeration.
Error: Error parsing /Users/dongmeiliang/Library/Android/sdk/system-images/android-24/android-wear/x86/devices.xml
cvc-enumeration-valid: Value '280dpi' is not facet-valid with respect to enumeration '[ldpi, mdpi, tvdpi, hdpi, xhdpi, xxhdpi, xxxhdpi]'. It must be a value from the             enumeration.

A:Delete the package Android Wear ARM EABI v7a system image and Android Wear X86 system image under API 23 and API 24.

Reference:Error Loading the sdk when eclipse is started