ios - GoogleTagManager error: _avn has no backing implementation -
this simple push data layer of screen view prints error verbose logging enabled. , subsequent calls data layer fail. neither logged nor executed.
[[tagmanager instance].datalayer push:@{@"event" : @"screen-loads", @"screen-name": [tracker get:kgaiscreenname], @"viewcontroller" :nsstringfromclass([sender class]) }];
this error message being logged:
googletagmanager error: _avn has no backing implementation.
the clue in _avn
. our friends on @ analytics pros took @ container , noticed had reference built in variable {{app version name}}
. noticed wasn't set, , think it's variable no longer part of v2.
anyway, changing {{app version name}}
{{app version code}}
got rid of error , data flowing freely. hope helps.
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