Power Bi not Connecting to Oracle - powerbi

When i am connecting to Oracle from Power Bi Desktop I am facing this Details:
"An error happened while reading data from the provider: 'Object reference not set to an instance of an object" Issue Please helpme ,

Hi which version of PBI you have 64bit 32bit? If you have 64bit PBI and Oracle client was 32bit this is issue. Version should be same otherwise it's going to give this issues.

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Power BI missing MySQL Connector, even though I installed it

On my Windows 10, I downloaded Power BI today in order to pull data from my remote server, which is MySQL.
I go to "get data from other source", choose MySQL, and then get a prompt that "this connector requires one or more additional components to be installed before it can be used"
I installed both the latest NET and ODBC connector for windows, restarted my pc, but still get the same error.
How should I troubleshoot this? Am I supposed to see something running in "services"?

unable to refresh power Bi data in AWS ODBC: ERROR [08S01] [Simba][DriverIAMSupport] (8600)

could someone please help and advice what is the issue?
Power BI is throwing the following error when refreshing data from AWS?
ODBC: ERROR [08S01] [Simba][DriverIAMSupport] (8600) Connection Error:
SAML assertion not found.
I have installed the latest version of Power BI desktop, simba athena driver, gateway personal mode, ODBC test connection successful, but non of these actions helped. Thanks for your help.
I've been advised to clear permission in Data source settings and it helped. Hope it's useful

Arrango DB Power BI connector - 503 issue

We have been using the Arrango DB for a while. As per the recent requirement, we are developing Dashboards Power BI. As per the instructions in the Power Bi - Arrango DB interaction Guide we have created connectors and are able to access the data. But after certain days(roughly 30 days of usage) when we are receiving the error "(503): Service Unavailable" when trying to connect to the Connector. We tried creating a new connector but after a few days, we have encountered a similar issue.
We are unable to understand the root cause for the issue. For working with dashboards we can create new connectors but it is quite not easy to update the data source in all the dashboards. We are not sure if the issue linked with Powe Bi releases
FYI:: we also have tried re-creating the connector with the same configuration of an issue connector. But still, we get 503 error
Tools:
Arrango DB 3.8.0 Community edition
Power BI Desktop Version: 2.98.1025.0 64-bit (October 2021)
Thanks in advance and please let me know if you need any information from our end.
Recently we are able to find solve this problem. The root cause of the issue is the change in the name of the collections, the code of the connector checks the existence of all the collections defined in the list and if the collection is missing then we get the 503 Service unavailable. So even a small change in the collection name spelling (even the case) might trigger this error.

Failed to save modifications to the server in Power BI

Can someone help me with the error: Failed to save modifications to the server. Error returned: 'The following system error occurred: Class not registered
'.
I am getting this while loading the excel/csv. I tried uninstalling the application quite many times but no luck, I still see the same issue
Can you please share the source from where you downloaded the Power BI?
If you have downloaded from Microsoft windows store, try uninstalling it and then reinstall Power BI with installer instead of Microsoft Store version from the official website.
Download the version of Power BI Desktop that matches the architecture (x86 or x64) of your Windows OS. Run the MSI installer and follow the setup steps.
Microsoft Power BI Desktop is available for 32-bit (x86) and 64-bit (x64) platforms.
Thanks!
It could be server to desktop version mismatch. Are you using power-BI report server or cloud service? What is the version of your desktop power-BI?
Are you using any custom connector?
It seems to me the compatibility issue.
The last thing I would request you to check is the size of the file you are trying to publish.

How to use Presto with Power BI

Has anyone tried to connect power BI tool with Presto?
I have used the connectors and driver available on the Qubole documentation site. I have installed the drivers and connectors but it is throwing error on accessing S3 location.
Qubole drivers and connector will work only with Qubole's Managed Presto Service.
Disclaimer: I work for Qubole.