清除所有事件Google Calendar Java

Question

I need to delete all my calendar events.

I saw the API that's the way to delete all events:

// Clear a calendar
service.calendars().clear('primary').execute();

So, I do this in my code :

 service.calendars().clear(CALENDAR_ID).execute();

I have the necessary authorization but I'm having this error :

{
  "code" : 400,
  "errors" : [ {
    "domain" : "global",
    "message" : "Cannot clear primary calendar.",
    "reason" : "invalid"
  } ],
  "message" : "Cannot clear primary calendar."
}.

How do I solve this problem ?

Answer 1

Calendars: clear

Clears a primary calendar. This operation deletes all events associated with the primary calendar of an account.

It only works on the primary calendar you need to do

service.calendars().clear('primary').execute();

not use a calendar id.

Answer 2

Have the same problem. Try to delete all evens from a calendar because some of them are bugged and it's impossible to delete them one by one. For example :

1 :

kind    "calendar#event"
etag    "\"3137773029614000\""
id  "3s3rabieiic4602kq267cu5t6n"
status  "cancelled"

2 :

kind    "calendar#event"
etag    "\"3137773029614000\""
id  "3s3rabieiic4602kq267cu5t6n_20180627T080000Z"
status  "cancelled"
recurringEventId    "3s3rabieiic4602kq267cu5t6n_R20180627T080000"
originalStartTime   
dateTime    "2018-06-27T10:00:00+02:00"
timeZone    "Europe/Paris"

AS you can see, they are approximately the same ID. I have 6 more like that.