Tracking returns false

[agoransson]

I've tried your simple use case just to test, and it fails to track. Everything seems to be setup fine, and the track event is called - however it returns false.

I've also added a local and a global error logging function to just print the failures to the console, but it doesn't print anything.

var conf = new MixpanelConfig() {
    ErrorLogFn = (msg, ex) => {
        Console.WriteLine("ERROR!");
        Console.WriteLine(ex.Message);
        Console.WriteLine(msg);
    },
    SerializeJsonFn = JsonConvert.SerializeObject
};

mc = new MixpanelClient(<token>, conf);

MixpanelConfig.Global.SerializeJsonFn = JsonConvert.SerializeObject;
MixpanelConfig.Global.ErrorLogFn = (message, exception) => {
    Console.WriteLine("ERROR!");
    Console.WriteLine(message);
};

When I then call Track it just returns false.

var ret = mc.Track(evt.ToString(), new
{
    Time = new DateTime(2013, 9, 26, 22, 33, 44, DateTimeKind.Utc)
});

Console.WriteLine("ret: " + ret);

Am I doing something wrong?

[agoransson]

When looking in the log for Android I can see the following:

[Mono] Assembly Loader probing location: '/storage/emulated/0/Android/data/<packagename>/files/.__override__/Mixpanel.dll'.
[Mono] Image addref Mixpanel[0xe4fe0a20] -> /storage/emulated/0/Android/data/<packagename>/files/.__override__/Mixpanel.dll[0xe1f5be00]: 2
[Mono] Prepared to set up assembly 'Mixpanel' (/storage/emulated/0/Android/data/<packagename>/files/.__override__/Mixpanel.dll)
[Mono] Assembly Mixpanel[0xe4fe0a20] added to domain RootDomain, ref_count=1
[Mono] AOT: image '/storage/emulated/0/Android/data/<packagename>/files/.__override__/Mixpanel.dll.so' not found: dlopen failed: library "/data/app/<packagename>-1/lib/arm/libaot-Mixpanel.dll.so" not found
[Mono] AOT: image '/usr/local/lib/mono/aot-cache/arm/Mixpanel.dll.so' not found: dlopen failed: library "/data/app/<packagename>-1/lib/arm/libaot-Mixpanel.dll.so" not found
[Mono] Assembly Loader loaded assembly from location: '/storage/emulated/0/Android/data/<packagename>/files/.__override__/Mixpanel.dll'.
[Mono] Config attempting to parse: '/storage/emulated/0/Android/data/<packagename>/files/.__override__/Mixpanel.dll.config'.
[Mono] Config attempting to parse: '/usr/local/etc/mono/assemblies/Mixpanel/Mixpanel.config'.

It says it can't find the dll, is that expected?

[eealeivan]

Hi,

Can you provide more details about your environment so I can reproduce the error?

[agoransson]

Thanks for replying.

I'm using Xamarin.Forms (2.5.0) on Android, iOS and UWP. Using both VS for mac and VS pro.

Anything else you're interested in?

[garie]

Mixpanel discards events that are more than 5 days old (reference). You need to set the event's time to a more recent date. It might be a good idea to change the example to use DateTime.Now, though, because I did the same thing at first.

[agoransson]

@garie That's embarrassing, I should've picked up on that too. Thanks.

[eealeivan]

I removed date from code sample for now.

[oliveiracdz]

Hi,

I could not found the information about 5 days.
Here says it can be any date within last 5 years, instead:

Time: A unix epoch style timestamp in UTC that tells Mixpanel when the event fired. This can be any time in the last 5 years.

It works with date in curl, but returns false in TrackAsync method.

curl --request POST \
     --url 'https://api.mixpanel.com/import?strict=1&project_id=<ID>' \
     --header 'Accept: application/json' \
     --header 'Authorization: Basic <AUTH>' \
     --header 'Content-Type: application/json' \
     --data '
[
     {
        "event": "pagamento_efetuado",
        "properties": {
            "distinct_id": "cbfabfc8-ddde-44b1-9dff-829b109b9d61",
            "time": 1613990024,
            "token": "<TOKEN>",
            "$insert_id": "123456",
            "plano": "PRO",
            "valor": 400.00,
            "primeiro_pagamento": false
        }
    }
]'

Could you help me please?

[oliveiracdz]

Sorry, the reference link from @garie was old.
Here is the new reference about 5 days limitation of /track endpoint: https://developer.mixpanel.com/reference/track-event

Could I workaround to user /import endpoint instead?

Thanks!