I'm trying to load a partitioned asset from another repo. I'm using the same partitioned asset

allfindata_budget = SourceAsset(
    key=AssetKey(["esg", "allfindata"]),
    group_name="budget",
    partitions_def=year_dataset_context_def
)

I'm getting the error

dagster._check.CheckError: Failure condition: Tried to access partition key for asset 'AssetKey(['esg', 'allfindata'])', but the number of input partitions != 1: '<dagster._core.definitions.partition.DefaultPartitionsSubset object at 0x7f8d2c9d7040>'.

What is the input partition? Thanks