There are some appointments synchronised, I used 0.5.7-alpha from f-droid. The logcat message is the following:
01-29 01:47:43.566 D/davdroid.SyncManager(12837): Adding S27vWB4n4F53l642OG4bm0.ics
01-29 01:47:43.566 D/davdroid.LocalCollection(12837): Committing 1 operations
01-29 01:47:43.576 E/DatabaseUtils(11605): Writing exception to parcel
01-29 01:47:43.576 E/DatabaseUtils(11605): java.lang.NumberFormatException: Invalid int: "T0"
01-29 01:47:43.576 E/DatabaseUtils(11605): at java.lang.Integer.invalidInt(Integer.java:137)
01-29 01:47:43.576 E/DatabaseUtils(11605): at java.lang.Integer.parse(Integer.java:374)
01-29 01:47:43.576 E/DatabaseUtils(11605): at java.lang.Integer.parseInt(Integer.java:365)
01-29 01:47:43.576 E/DatabaseUtils(11605): at java.lang.Integer.parseInt(Integer.java:331)
01-29 01:47:43.576 E/DatabaseUtils(11605): at com.android.providers.calendar.CalendarProvider2.fixAllDayTime(CalendarProvider2.java:1588)
01-29 01:47:43.576 E/DatabaseUtils(11605): at com.android.providers.calendar.CalendarProvider2.insertInTransaction(CalendarProvider2.java:2202)
01-29 01:47:43.576 E/DatabaseUtils(11605): at com.android.providers.calendar.SQLiteContentProvider.insert(SQLiteContentProvider.java:110)
01-29 01:47:43.576 E/DatabaseUtils(11605): at android.content.ContentProviderOperation.apply(ContentProviderOperation.java:214)
01-29 01:47:43.576 E/DatabaseUtils(11605): at com.android.providers.calendar.SQLiteContentProvider.applyBatch(SQLiteContentProvider.java:234)
01-29 01:47:43.576 E/DatabaseUtils(11605): at android.content.ContentProvider$Transport.applyBatch(ContentProvider.java:260)
01-29 01:47:43.576 E/DatabaseUtils(11605): at android.content.ContentProviderNative.onTransact(ContentProviderNative.java:185)
01-29 01:47:43.576 E/DatabaseUtils(11605): at android.os.Binder.execTransact(Binder.java:404)
01-29 01:47:43.576 E/DatabaseUtils(11605): at dalvik.system.NativeStart.run(Native Method)
01-29 01:47:43.576 W/dalvikvm(12837): threadid=11: thread exiting with uncaught exception (group=0x417aec80)
01-29 01:47:43.576 E/AndroidRuntime(12837): FATAL EXCEPTION: SyncAdapterThread-1
01-29 01:47:43.576 E/AndroidRuntime(12837): Process: at.bitfire.davdroid:sync, PID: 12837
01-29 01:47:43.576 E/AndroidRuntime(12837): java.lang.IllegalArgumentException: Invalid int: "T0"
01-29 01:47:43.576 E/AndroidRuntime(12837): at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:167)
01-29 01:47:43.576 E/AndroidRuntime(12837): at android.database.DatabaseUtils.readExceptionWithOperationApplicationExceptionFromParcel(DatabaseUtils.java:160)
01-29 01:47:43.576 E/AndroidRuntime(12837): at android.content.ContentProviderProxy.applyBatch(ContentProviderNative.java:512)
01-29 01:47:43.576 E/AndroidRuntime(12837): at android.content.ContentProviderClient.applyBatch(ContentProviderClient.java:377)
01-29 01:47:43.576 E/AndroidRuntime(12837): at at.bitfire.davdroid.resource.LocalCollection.commit(LocalCollection.java:232)
01-29 01:47:43.576 E/AndroidRuntime(12837): at at.bitfire.davdroid.syncadapter.SyncManager.pullNew(SyncManager.java:186)
01-29 01:47:43.576 E/AndroidRuntime(12837): at at.bitfire.davdroid.syncadapter.SyncManager.synchronize(SyncManager.java:88)
01-29 01:47:43.576 E/AndroidRuntime(12837): at at.bitfire.davdroid.syncadapter.DavSyncAdapter.onPerformSync(DavSyncAdapter.java:71)
01-29 01:47:43.576 E/AndroidRuntime(12837): at android.content.AbstractThreadedSyncAdapter$SyncThread.run(AbstractThreadedSyncAdapter.java:259)
01-29 01:47:45.236 I/Process (12837): Sending signal. PID: 12837 SIG: 9
Much earlier in the logcat, while starting davdroid i get the following error message, but I guess thats not related to the problem:
01-29 01:47:36.206 I/davdroid.DavSyncAdapter(12837): Performing sync for authority com.android.calendar
01-29 01:47:36.266 I/davdroid.WebDavResource(12837): Using preemptive authentication (not compatible with Digest auth)
01-29 01:47:36.276 I/davdroid.SyncManager(12837): Remotely removing 0 deleted resource(s) (if not changed)
01-29 01:47:36.276 I/davdroid.SyncManager(12837): Uploading 0 new resource(s) (if not existing)
01-29 01:47:36.286 I/davdroid.SyncManager(12837): Uploading 0 modified resource(s) (if not changed)
01-29 01:47:36.286 I/davdroid.SyncManager(12837): Synchronization forced
01-29 01:47:36.286 I/davdroid.SyncManager(12837): Fetching remote resource list
01-29 01:47:36.286 I/dalvikvm(12837): Could not find method javax.xml.stream.XMLInputFactory.newInstance, referenced from method org.simpleframework.xml.stream.StreamProvider.<init>
01-29 01:47:36.286 W/dalvikvm(12837): VFY: unable to resolve static method 7614: Ljavax/xml/stream/XMLInputFactory;.newInstance ()Ljavax/xml/stream/XMLInputFactory;
01-29 01:47:36.286 D/dalvikvm(12837): VFY: replacing opcode 0x71 at 0x0003
01-29 01:47:36.286 W/dalvikvm(12837): VFY: unable to find class referenced in signature (Ljavax/xml/stream/XMLEventReader;)
01-29 01:47:36.286 W/dalvikvm(12837): VFY: unable to find class referenced in signature (Ljavax/xml/stream/XMLEventReader;)
01-29 01:47:36.286 I/dalvikvm(12837): Could not find method javax.xml.stream.XMLInputFactory.createXMLEventReader, referenced from method org.simpleframework.xml.stream.StreamProvider.provide
01-29 01:47:36.286 W/dalvikvm(12837): VFY: unable to resolve virtual method 7612: Ljavax/xml/stream/XMLInputFactory;.createXMLEventReader (Ljava/io/InputStream;)Ljavax/xml/stream/XMLEventReader;
01-29 01:47:36.286 D/dalvikvm(12837): VFY: replacing opcode 0x6e at 0x0002
01-29 01:47:36.286 I/dalvikvm(12837): Could not find method javax.xml.stream.XMLInputFactory.createXMLEventReader, referenced from method org.simpleframework.xml.stream.StreamProvider.provide
01-29 01:47:36.286 W/dalvikvm(12837): VFY: unable to resolve virtual method 7613: Ljavax/xml/stream/XMLInputFactory;.createXMLEventReader (Ljava/io/Reader;)Ljavax/xml/stream/XMLEventReader;
01-29 01:47:36.286 D/dalvikvm(12837): VFY: replacing opcode 0x6e at 0x0002
01-29 01:47:36.316 D/davdroid.HttpPropfind(12837): Prepared PROPFIND request for https://posteo.de:8443