Wanted to give a quick follow up on this - in our latest version, the

resolve

call is unnecessary. So if you are able to update, that's the approach we recommend

I use

asset_job.ressolve(assets=[myasset], source_assets=[mysourceasset]).execute_in_process()

but I get the error that the key "foo" is not provided in the error

AssetKey(s) {'foo'} were selected, but no AssetDefinition objects supply these keys.

even though

mysourceasset

definitely has this key. BTW: I get the same error when I add the stuff in a repo and open it with dagit. I think you have to enhance your SourceAssets example in the docs with a little bit more complex example which also uses jobs, ...

@jamie I extended your example a little into the direction of my code. (I use assets jobs because I have to inject configs and tags.) The below code is the minimal example for me which throws an error.

from dagster import AssetKey, SourceAsset, asset, define_asset_job, repository


@asset
def repository_a_asset():
    return 5


job_a = define_asset_job(
    name="JOBA", selection=[repository_a_asset.key.to_user_string()]
)


@repository
def repository_a():
    return [job_a, repository_a_asset]


repository_a_source_asset = SourceAsset(key=repository_a_asset.key)


@asset
def repository_b_asset(repository_a_asset):
    return repository_a_asset + 6


job_b = define_asset_job(
    name="JOBB",
    selection=[repository_b_asset.key.to_user_string()]
    + [repository_a_source_asset.key.to_user_string()],
)


@repository
def repository_b():
    return [job_b, repository_b_asset, repository_a_source_asset]