新建项目时提示：proguard.cfg 系统找不到指定的文件<wbr>如图：</wbr>
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解决方法：
方法一：在<wbr>\android-sdk-windows\tools\lib\目录下新建proguard.cfg文件</wbr>
内容如下：
-optimizationpasses 5
-dontusemixedcaseclassnam<wbr>es<br>
-dontskipnonpubliclibrary<wbr>classes<br>
-dontpreverify<br>
-verbose<br>
-optimizations !code/simplification/arithmetic,!field/*,!class/merging/*<br>
-keep public class * extends android.app.Activity<br>
-keep public class * extends android.app.Application<br>
-keep public class * extends android.app.Service<br>
-keep public class * extends android.content.BroadcastReceiver<br>
-keep public class * extends android.content.ContentProvider<br>
-keep public class com.android.vending.licensing.ILicensingService<br>
-keepclasseswithmembernam<wbr>es class * {<br>
native ;<br>
}<br>
-keepclasseswithmembernam<wbr>es class * {<br>
public (android.content.Context, android.util.AttributeSet);<br>
}<br>
-keepclasseswithmembernam<wbr>es class * {<br>
public (android.content.Context, android.util.AttributeSet, int);<br>
}<br>
-keepclassmembers enum * {<br>
public static **[] values();<br>
public static ** valueOf(java.lang.String);<br>
}<br>
-keep class * implements android.os.Parcelable {<br>
public static final android.os.Parcelable$Creator *;<br>
}</wbr></wbr></wbr></wbr></wbr>
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方法二：通过Android SDK and AVD Manager更新SDK。