Unable to resolve action `iximiel/install-plumed@v1`, unable to find version `v1`

Iximiel/install-plumed/main/action.yaml (Line: 19, Col: 7): There's not enough info to determine what you meant. Add one of these properties: run, shell, uses, with, working-directory

Iximiel/install-plumed/main/action.yaml: (Line: 20, Col: 6, Idx: 464) - (Line: 20, Col: 6, Idx: 464): While parsing a block collection, did not find expected '-' indicator.

System.ArgumentException: Unexpected type '' encountered while reading 'action manifest root'. The type 'MappingToken' was expected. at GitHub.DistributedTask.ObjectTemplating.Tokens.TemplateTokenExtensions.AssertMapping(TemplateToken value, String objectDescription) at GitHub.Runner.Worker.ActionManifestManager.Load(IExecutionContext executionContext, String manifestFile)