As I understand it, this is clearly a Google Calendar problem. We could introduce ugly and cumbersome workarounds (like faking a new main event with RDATEs for all instances) for this; but these events as given are not valid. The same behavior would at the latest with CalDAV and r/w calendars cause problems and unsyncable events. Also, I have never seen it from any other client or server.

Do you know whether other iCalendar clients (like Thunderbird, Evolution, Outlook…) can understand these events?

Do you know where to report Google Calendar problems?

@bananer said in Allow backup and restore:

Hi,

in the app’s Android Manifest, allowBackup is set to false. This prevents it from being backed up e.g. with SeedVault.

What’s the reason behind that? Would you consider removing the attribute to allow backups?

No, it won’t work. Backup is not implemented and won’t work because the account is not backed up.

It would have to be implemented explicitly (which is on our todo list).

@rfc2822 I use syncthing to synchronize one folder.

To try the few other folders, I just copied the file around.

Is there another workflow that would work better?

@stefano-cossu said in Reminders for WebCal calendar imported from Outlook:

Hi, thank you for making this app available which allows me to see my Outlook work calendar on Android without obtrusive apps.

I am currently exporting my Outlook calendar to Nextcloud, which in turn exposes it as a read-only WebCal calendar, which I can import into my Android apps via ICSX. Quite a chain, but it’s the only way I have been able to make it work.

The only problem is that none of the event reminders seem to carry over. I am not sure which step of the chain is responsible for that, but if that were a limitation of the protocol or any of the other systems involved, is it possible to set up at least a default reminder for all the events?

Of course, if someone has a better advice on how to access Outlook calendars on Android, I’d be glad to know about it.

Thank you.

I have the same request, please add this features to next release.

I experience a similar issue with several public Google calendars. However, it’s not unique to ICSx5, but happens on other clients too, including Mozilla Thunderbird and Mailfence. Basically, what I am observing is the following:

On adding the calendar, the client is generally able to fetch all events. But on subsequent tries to refresh, it fails.

A public Google calendar (https://calendar.google.com/calendar/ical/aikfotboll2019%40gmail.com/public/basic.ics) that I have subscribed to for several months sporadically fails with the infamous error “failed to connect to calendar.google.com …”. However, I have reason to believe that it occasionally succeeds, because there are events in my calendar that I don’t think were there at the time of subscribing.

An hour ago, I tried adding another public Google calendar (https://calendar.google.com/calendar/ical/sv.swedish%23holiday%40group.v.calendar.google.com/public/basic.ics) to Thunderbird. Again, adding it succeeded, and events showed up as expected. However, it soon changed status to “The calendar … is momentarily not available” and has stayed that way since.

Just now, I’ve been trying to subscribe to several public calendars that are not hosted by Google, e.g. webcal://www.allsvenskan.se/prenumerera-pa-matcherna-i-din-kalender/aik.ics and https://www.calendarlabs.com/ical-calendar/ics/76/US_Holidays.ics. However, both of them fail the “Validating calendar resource…” step.

If my guess is correct that the background synchronization occasionally succeeds, I believe it would be an improvement to let the user add the calendar regardless of the outcome of the calendar resource validation. Perhaps a button “Add anyway” in the failure dialog. That way, the app would periodically retry fetching it for me in the background.

EDIT: Here’s some output from adb logcat '*:W' 'icsx5:V' when pulling to refresh in ICSx5 with a single calendar subscription:

03-13 14:40:11.415 23218 23218 D icsx5 : Sync running: false 03-13 14:40:11.416 23218 23441 I icsx5 : Synchronizing Calendar subscriptions 03-13 14:40:11.417 23218 23218 D icsx5 : Sync running: true 03-13 14:40:11.433 23218 23442 I icsx5 : Synchronizing https://calendar.google.com/calendar/ical/aikfotboll2019@gmail.com/public/basic.ics 03-13 14:40:12.680 1451 1451 W Looper : Slow dispatch took 259ms main h=android.app.ActivityThread$H c=android.app.-$$Lambda$LoadedApk$ReceiverDispatcher$Args$_BumDX2UKsnxLVrE6UJsJZkotuA@9b649a9 m=0 03-13 14:40:12.680 1451 1451 W Looper : Slow delivery took 268ms main h=android.app.ActivityThread$H c=android.app.-$$Lambda$LoadedApk$ReceiverDispatcher$Args$_BumDX2UKsnxLVrE6UJsJZkotuA@ec50b2e m=0 03-13 14:40:12.713 1451 1487 W Searchables: No global search activity found 03-13 14:40:12.715 1451 1487 W VoiceInteractionManagerService: no available voice interaction services found for user 0 03-13 14:40:13.952 1451 1451 W Looper : Drained 03-13 14:40:18.018 18028 21550 W AlarmSleepTimer: Setting alarm to wake up in 55000ms. 03-13 14:40:18.024 18028 21551 W AlarmSleepTimer: Setting alarm to wake up in 55000ms. 03-13 14:40:18.025 18028 18028 W AlarmSleepTimer: Waking up. 03-13 14:40:32.068 23218 23442 W icsx5 : Sync error 03-13 14:40:32.068 23218 23442 W icsx5 : java.net.SocketTimeoutException: failed to connect to calendar.google.com/2a00:1450:400f:803::200e (port 443) from /fc00:bbbb:bbbb:bb01::8:358e (port 38126) after 10000ms 03-13 14:40:32.068 23218 23442 W icsx5 : at libcore.io.IoBridge.connectErrno(IoBridge.java:191) 03-13 14:40:32.068 23218 23442 W icsx5 : at libcore.io.IoBridge.connect(IoBridge.java:135) 03-13 14:40:32.068 23218 23442 W icsx5 : at java.net.PlainSocketImpl.socketConnect(PlainSocketImpl.java:142) 03-13 14:40:32.068 23218 23442 W icsx5 : at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:390) 03-13 14:40:32.068 23218 23442 W icsx5 : at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:230) 03-13 14:40:32.068 23218 23442 W icsx5 : at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:212) 03-13 14:40:32.068 23218 23442 W icsx5 : at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:436) 03-13 14:40:32.068 23218 23442 W icsx5 : at java.net.Socket.connect(Socket.java:621) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.platform.Platform.connectSocket(Platform.kt:120) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.connection.RealConnection.connectSocket(RealConnection.kt:295) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.connection.RealConnection.connect(RealConnection.kt:207) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.connection.ExchangeFinder.findConnection(ExchangeFinder.kt:226) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.connection.ExchangeFinder.findHealthyConnection(ExchangeFinder.kt:106) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.connection.ExchangeFinder.find(ExchangeFinder.kt:74) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.connection.RealCall.initExchange$okhttp(RealCall.kt:255) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.kt:32) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.kt:95) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.kt:83) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.kt:76) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.connection.RealCall.getResponseWithInterceptorChain$okhttp(RealCall.kt:201) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.connection.RealCall.execute(RealCall.kt:154) 03-13 14:40:32.068 23218 23442 W icsx5 : at at.bitfire.icsdroid.CalendarFetcher.fetchNetwork(CalendarFetcher.kt:129) 03-13 14:40:32.068 23218 23442 W icsx5 : at at.bitfire.icsdroid.CalendarFetcher.run(CalendarFetcher.kt:44) 03-13 14:40:32.068 23218 23442 W icsx5 : at at.bitfire.icsdroid.ProcessEventsTask.processEvents(ProcessEventsTask.kt:101) 03-13 14:40:32.068 23218 23442 W icsx5 : at at.bitfire.icsdroid.ProcessEventsTask.run(ProcessEventsTask.kt:34) 03-13 14:40:32.068 23218 23442 W icsx5 : at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167) 03-13 14:40:32.068 23218 23442 W icsx5 : at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641) 03-13 14:40:32.068 23218 23442 W icsx5 : at java.lang.Thread.run(Thread.java:919) 03-13 14:40:32.068 23218 23442 W icsx5 : Suppressed: java.net.SocketTimeoutException: failed to connect to calendar.google.com/142.250.74.110 (port 443) from /10.71.53.143 (port 47555) after 10000ms 03-13 14:40:32.068 23218 23442 W icsx5 : ... 32 more 03-13 14:40:32.114 15710 17155 W ContentResolver: Failed to get type for: content://com.android.calendar (Unknown URL content://com.android.calendar) 03-13 14:40:32.129 23218 23442 I icsx5 : iCalendar file completely processed 03-13 14:40:32.162 23218 23218 D icsx5 : Sync running: false

EDIT(2): After restarting my phone, synchronization succeeded. Logs:

03-13 14:53:22.881 5684 5684 D icsx5 : Sync running: false 03-13 14:53:22.882 5684 6315 I icsx5 : Synchronizing Calendar subscriptions 03-13 14:53:22.891 5684 5684 D icsx5 : Sync running: true 03-13 14:53:22.941 5684 6316 I icsx5 : Synchronizing https://calendar.google.com/calendar/ical/aikfotboll2019@gmail.com/public/basic.ics 03-13 14:53:23.441 5684 6316 W itfire.icsdroi: Accessing hidden field Ljava/util/Collections$SynchronizedCollection;->mutex:Ljava/lang/Object; (greylist-max-o, reflection, denied) 03-13 14:53:23.441 5684 6316 W itfire.icsdroi: Accessing hidden method Ljava/util/Collections$SynchronizedSet;-><init>(Ljava/util/Set;Ljava/lang/Object;)V (greylist-max-o, reflection, denied) 03-13 14:53:23.441 5684 6316 W itfire.icsdroi: Accessing hidden method Ljava/util/Collections$SynchronizedCollection;-><init>(Ljava/util/Collection;Ljava/lang/Object;)V (greylist-max-o, reflection, denied) 03-13 14:53:23.449 2516 2516 W AvrcpMediaPlayerWrapper: The session was destroyed org.thoughtcrime.securesms 03-13 14:53:23.566 5684 6316 I icsx5 : Processing 102 events 03-13 14:53:23.566 5684 6316 D icsx5 : Found VEVENT: 5e4a2t8cu0jr6itjfvi0rt59os@google.com 03-13 14:53:23.571 5684 6316 D icsx5 : 5e4a2t8cu0jr6itjfvi0rt59os@google.com already in local calendar, lastModified = LAST-MODIFIED:20210312T135817Z 03-13 14:53:23.571 5684 6316 D icsx5 : 5e4a2t8cu0jr6itjfvi0rt59os@google.com has not been modified since last sync 03-13 14:53:23.571 5684 6316 D icsx5 : Found VEVENT: 6hpp58n511h6vvnv6tsfgq8c9r@google.com 03-13 14:53:23.574 5684 6316 D icsx5 : 6hpp58n511h6vvnv6tsfgq8c9r@google.com already in local calendar, lastModified = LAST-MODIFIED:20210312T135652Z 03-13 14:53:23.574 5684 6316 D icsx5 : 6hpp58n511h6vvnv6tsfgq8c9r@google.com has not been modified since last sync 03-13 14:53:23.574 5684 6316 D icsx5 : Found VEVENT: 0p3vad213ak6ods0he6r4lb3r2@google.com 03-13 14:53:23.577 5684 6316 D icsx5 : 0p3vad213ak6ods0he6r4lb3r2@google.com already in local calendar, lastModified = LAST-MODIFIED:20210312T135457Z 03-13 14:53:23.577 5684 6316 D icsx5 : 0p3vad213ak6ods0he6r4lb3r2@google.com has not been modified since last sync 03-13 14:53:23.577 5684 6316 D icsx5 : Found VEVENT: 22rv6n2d1usnuvceof1u1ofu24@google.com 03-13 14:53:23.580 5684 6316 D icsx5 : 22rv6n2d1usnuvceof1u1ofu24@google.com already in local calendar, lastModified = LAST-MODIFIED:20210312T135345Z 03-13 14:53:23.580 5684 6316 D icsx5 : 22rv6n2d1usnuvceof1u1ofu24@google.com has not been modified since last sync 03-13 14:53:23.580 5684 6316 D icsx5 : Found VEVENT: 2liakem1g049dnq4a5oi5h0a0h@google.com 03-13 14:53:23.583 5684 6316 D icsx5 : 2liakem1g049dnq4a5oi5h0a0h@google.com already in local calendar, lastModified = LAST-MODIFIED:20210312T135152Z 03-13 14:53:23.583 5684 6316 D icsx5 : 2liakem1g049dnq4a5oi5h0a0h@google.com has not been modified since last sync 03-13 14:53:23.584 5684 6316 D icsx5 : Found VEVENT: 2calf7fa7kp2ied7c8u7a2u7g9@google.com 03-13 14:53:23.587 5684 6316 D icsx5 : 2calf7fa7kp2ied7c8u7a2u7g9@google.com already in local calendar, lastModified = LAST-MODIFIED:20210312T135044Z 03-13 14:53:23.587 5684 6316 D icsx5 : 2calf7fa7kp2ied7c8u7a2u7g9@google.com has not been modified since last sync 03-13 14:53:23.587 5684 6316 D icsx5 : Found VEVENT: 57cpoei5m4vrtmg1n44l64oo81@google.com 03-13 14:53:23.591 5684 6316 D icsx5 : 57cpoei5m4vrtmg1n44l64oo81@google.com already in local calendar, lastModified = LAST-MODIFIED:20210312T134920Z 03-13 14:53:23.591 5684 6316 D icsx5 : 57cpoei5m4vrtmg1n44l64oo81@google.com has not been modified since last sync 03-13 14:53:23.591 5684 6316 D icsx5 : Found VEVENT: 1smup6s5acid4nuposhb7js8b3@google.com 03-13 14:53:23.594 5684 6316 D icsx5 : 1smup6s5acid4nuposhb7js8b3@google.com already in local calendar, lastModified = LAST-MODIFIED:20210312T134753Z ... 03-13 14:53:23.859 5684 6316 D icsx5 : 5gba371of6t628497692eo6atq@google.com has not been modified since last sync 03-13 14:53:23.859 5684 6316 D icsx5 : Found VEVENT: 5562cqun5gv3cjh4114i8gfc1e@google.com 03-13 14:53:23.866 5684 6316 D icsx5 : 5562cqun5gv3cjh4114i8gfc1e@google.com already in local calendar, lastModified = LAST-MODIFIED:20190115T140451Z 03-13 14:53:23.866 5684 6316 D icsx5 : 5562cqun5gv3cjh4114i8gfc1e@google.com has not been modified since last sync 03-13 14:53:23.866 5684 6316 D icsx5 : Found VEVENT: 4i4t02j4ionf9drpd6nb16oqtu@google.com 03-13 14:53:23.874 5684 6316 D icsx5 : 4i4t02j4ionf9drpd6nb16oqtu@google.com already in local calendar, lastModified = LAST-MODIFIED:20181204T101951Z 03-13 14:53:23.874 5684 6316 D icsx5 : 4i4t02j4ionf9drpd6nb16oqtu@google.com has not been modified since last sync 03-13 14:53:23.874 5684 6316 D icsx5 : Found VEVENT: 0emnlecr2lvt1u6u47r5if5fug@google.com 03-13 14:53:23.881 5684 6316 D icsx5 : 0emnlecr2lvt1u6u47r5if5fug@google.com already in local calendar, lastModified = LAST-MODIFIED:20181204T101812Z 03-13 14:53:23.881 5684 6316 D icsx5 : 0emnlecr2lvt1u6u47r5if5fug@google.com has not been modified since last sync 03-13 14:53:23.881 5684 6316 D icsx5 : Found VEVENT: 7127o5n2ljntc4fgi8d4e8i921@google.com 03-13 14:53:23.890 5684 6316 D icsx5 : 7127o5n2ljntc4fgi8d4e8i921@google.com already in local calendar, lastModified = LAST-MODIFIED:20181204T101610Z 03-13 14:53:23.890 5684 6316 D icsx5 : 7127o5n2ljntc4fgi8d4e8i921@google.com has not been modified since last sync 03-13 14:53:23.890 5684 6316 I icsx5 : Deleting old events (retaining 102 events by UID) … 03-13 14:53:23.917 5684 6316 I icsx5 : … 0 events deleted 03-13 14:53:23.917 5684 6316 I icsx5 : Calendar sync successful, ETag=null, lastModified=null 03-13 14:53:23.927 5156 5499 W ContentResolver: Failed to get type for: content://com.android.calendar (Unknown URL content://com.android.calendar) 03-13 14:53:23.948 5684 6316 I icsx5 : iCalendar file completely processed 03-13 14:53:23.978 5684 5684 D icsx5 : Sync running: false

I’m using ICSx⁵ 1.9-standard and DAVx⁵ 3.3.8-ose (thanks), both from F-Droid. In DAVx⁵ I am subscribed to 1 caldav (Personal) and no webcal. In ICSx⁵ I am subscribed to 3 webcal - these are all public holidays and only change about once a year.

So in ICSx⁵ I’ve set the sync interval to manual, this in confirmed by a message shown on the bottom “Automatic sync disabled”. The problem is whenever a network connection is available ICSx⁵ still tries to sync even when it’s not supposed to.

@colona Ah I see. Yes as usual I forgot to push the tag.

@dafelix Thanks for the feedback.

Duplicate of https://forums.bitfire.at/post/12711, please follow up there.

@rf1701 Hi,

This is a duplicate of https://forums.bitfire.at/post/12711. Please follow up there. Unfortunately, I don’t know why Android starts synchronization when Internet is not available yet.

@rfc2822 I sent it via DM

@verwaiser said in Update 1.9 no sync:

@rfc2822
Of course I tried to Update manually too.

And did it succeed? I need as much information as possible, because I can’t reproduce the problem here. I’m using ICSx5 myself and there are no problems.

Before your update it worked normally, and my Samsung s8+ is no exotic brand.
And I told you, that my collegue has the same issue with another phone.

The link I posted is not about exotic brands, but about Samsung, Huawei, Lenovo, Meizu, Nubia, One Plus, Oppo, Vivo, Xiaomi, Viko and others.

Then I looked to App rights, there I saw, that the authorisation “memory” isnt enabled (I never was asked for this). After enabling the sync succeeded.

Are you using local feeds?

As said above, I need information about your case, otherwise it’s just wild guessing around which will not bring any results.

Consider mine the second request please.
Having tasks synced as well is of major importance.
I currently export them as calendar entries but despite being much less useful, it’s plain ugly.

@rfc2822 Thank you, this helps a lot, it is a subscription of a shared calendar of an openXchange suite. Seems this error has always been there, but ICSX5 has begun to fail just with the pre-former release. I will contact the server software provider…

Hmm. OK, seems that any other app modifies this flag … Indeed I have multiple calendar apps installed (DigiCal, Samsung Calendar, Google Calendar). How could I check whether one of these modifies the flag?

Hello,

This calendar https://accueil.iut-info.univ-lille.fr/calendrier/iutinfo.ics return the error “Couldn’t parse iCalendar”.

I’ve tried to validate it with https://icalendar.org/validator.html and i get no errors. And I can open the file directly with the calendar of my Samsung phone.

I don’t know how much can I try to debug. Can you help me with that ?

Alexis