Lets assume following:
- Orchestrator is correctly connected
- Permissions are valid and sufficient
We identified in a scenario with the same issue that inside the UiProject a folder with data / e.g. downloads did result to a package with a huge file size. But the data were obsolete and after cleansing the much more smaller package waspublished to Orchestrator sucessfully.
So check following:
- can there be done a cleansing before publishing
And/Or - publish the package (cleanse the project also) to a local directory and try to publish it manually
Which UiPath Studio / Orchestrator version is in use?