小编Mar*_*aan的帖子

当我使用Android 2.3.3时,我尝试制作应用程序.但是,当我迁移到3.0版时,我的应用程序在模拟器中变得"已停止".如何解决这个问题呢？我更新了sdk和gradle.我已经确定没有更新,我还没有完成.这是logcat的错误:

E/AndroidRuntime: FATAL EXCEPTION: main
                                                                        Process: com.martin.app.donorkuyadmin, PID: 3870
                                                                        java.lang.RuntimeException: Unable to start activity ComponentInfo{com.martin.app.donorkuyadmin/com.martin.app.donorkuyadmin.LoginActivity}: android.view.InflateException: Binary XML file line #0: Binary XML file line #0: Error inflating class com.dd.CircularProgressButton
                                                                            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2646)
                                                                            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2707)
                                                                            at android.app.ActivityThread.-wrap12(ActivityThread.java)
                                                                            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1460)
                                                                            at android.os.Handler.dispatchMessage(Handler.java:102)
                                                                            at android.os.Looper.loop(Looper.java:154)
                                                                            at android.app.ActivityThread.main(ActivityThread.java:6077)
                                                                            at java.lang.reflect.Method.invoke(Native Method)
                                                                            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:866)
                                                                            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:756)
                                                                         Caused by: android.view.InflateException: Binary XML file line #0: Binary XML file line #0: Error inflating class com.dd.CircularProgressButton
                                                                         Caused by: android.view.InflateException: Binary XML file line #0: Error inflating class …