From your description, DAVdroid does not create duplicate contacts. DAVdroid creates “raw contacts”, as does Gmail. For every person, these two “raw contacts” are aggregated by Android to one “contact”.
Wait until Android aggregates the contacts (may take some time), or Merge them manually in your Contacts app (“merge”), or Choose “Contacts to show: only DAVdroid” in your Contacts app.Exception thrown when syncing contacts with a photo
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When I add an image to one of the contacts and try do sync, DAVdroid throws an exception:
EXCEPTION: java.lang.ClassCastException: android.content.res.AssetFileDescriptor cannot be cast to java.io.Closeable at at.bitfire.vcard4android.AndroidContact.populatePhoto(AndroidContact.kt:293) at at.bitfire.vcard4android.AndroidContact.getContact(AndroidContact.kt:140) at at.bitfire.davdroid.resource.LocalContact.getCachedGroupMemberships(LocalContact.java:251) at at.bitfire.davdroid.syncadapter.ContactsSyncManager.prepareDirty(ContactsSyncManager.java:214) at at.bitfire.davdroid.syncadapter.SyncManager.performSync(SyncManager.java:152) at at.bitfire.davdroid.syncadapter.ContactsSyncAdapterService$ContactsSyncAdapter.onPerformSync(ContactsSyncAdapterService.java:70) at android.content.AbstractThreadedSyncAdapter$SyncThread.run(AbstractThreadedSyncAdapter.java:257)Here’s the redacted debug info:
0_1501153025047_debug.txt -
Same as https://forums.bitfire.at/post/8531, will be fixed in next version