"Object reference not set to an instance of an object" - getting data from Excel

[Kinga99]

I continuosly have the same issue with my Desktop Power BI. I get this error message regardless of what type of data I am trying to ingest to Power BI. At times I use data from SharePoint, excel files from my drive, or even desktop. The interesting part is, that if I restart my computer and launch Power BI again, everything starts working. After a couple hours, when I import new data I get the same error. Sometimes I get this error right after starting the application - there's just no telling when it will happen. To clarify: my Power BI, as well as my operating system are both 64 bits and I have the newest version of Power BI Desktop. Any suggestions?

[JulianNoarmenn]

Check if the error message contains the following excerpt: “Microsoft.Mashup.Evaluator.Interface.ErrorException: Specified value has invalid CRLF characters”. If yes, it means there is a corrupted file. I followed these steps and it worked:

Try opening this file in the appropriate software, for example, if it is a spreadsheet, open it in Microsft Excel, and try to save it as a new file and replace the previous one.

Source: https://powerbipoint.com/2024/01/02/power-bi-fix-the-error-object-reference-not-set-to-an-instance-o... 

[v-shex-msft]

Hi @Kinga99,

In fact, it is a common exception that appears when you try to access or reference objects. It means you are trying to reference to an Object which is not initialized or initialize failed. (these exceptions can be catch and handle by programming language error but you can't do customize on each connector)

You can take a look at the following document to know more about 'null reference exceptions':

NullReferenceException

Regards,

Xiaoxin Sheng