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Cannot read property 'reject' of null


since yesterday, we have been having an error where some of our embedded reports aren't loading the data.

The spinner that indicates data loading for individual visuals keep spinning and the error "Cannot read property 'reject' of null" is thrown on reportEmbed.min.js

Uncaught TypeError: Cannot read property 'reject' of null
at XMLHttpRequest.xhr.onreadystatechange [as __zone_symbol__ON_PROPERTYreadystatechange] (reportEmbed:452)
at XMLHttpRequest.g (reportEmbed.min.js:1)
at t.invokeTask (reportEmbed.min.js:1)
at e.runTask (reportEmbed.min.js:1)
at e.invokeTask [as invoke] (reportEmbed.min.js:1)
at f (reportEmbed.min.js:1)
at XMLHttpRequest.h (reportEmbed.min.js:1)
xhr.onreadystatechange @ reportEmbed:452
g @ reportEmbed.min.js:1
t.invokeTask @ reportEmbed.min.js:1
e.runTask @ reportEmbed.min.js:1
e.invokeTask @ reportEmbed.min.js:1
f @ reportEmbed.min.js:1
h @ reportEmbed.min.js:1
XMLHttpRequest.send (async)
g @ reportEmbed.min.js:1
t.scheduleTask @ reportEmbed.min.js:1
e.scheduleTask @ reportEmbed.min.js:1
e.scheduleMacroTask @ reportEmbed.min.js:1
(anonymous) @ reportEmbed.min.js:1
o.(anonymous function) @ reportEmbed.min.js:1
getConceptualSchema @ reportEmbed:458
xhr.onreadystatechange @ reportEmbed:373
XMLHttpRequest.send (async)
getModelsAndExploration @ reportEmbed:392
startFrontLoadReportEmbed @ reportEmbed:96
receiveMessage @ reportEmbed:143

I can also see in the sources that everytime I reload a report it creates a new "reportEmbed" section under "sources" in the debugger.

It seems to be able to load fine the first time if you do a "clear cache and hard reload" but from then on it throws the error.

Does anyone have this problem?

The problem is happening on a report doing an import query on the sql server and a report doing a live connection to an ssas server through an on-premise data gateway.

Status: Accepted
Frequent Visitor

The issues goes away if I do phased loading of the reports if that helps.



Hi @hoonybro90,


The same issue has been reported internally: CRI 93515183. Will keep you update once I get any information. 


Best Regards,
Qiuyun Yu 

Status changed to: Accepted

We are facing the same issue.


Hi all, 


Fix should be in production in the first week of January.


Best Regards,
Qiuyun Yu 

Idea Statuses