/home/runner/work/selfhosted/selfhosted/./.github/actions/setup-build-env/action.yml (Line: 26, Col: 15): A sequence was not expected

System.ArgumentException: Unexpected type 'SequenceToken' encountered while reading 'inputs value'. The type 'StringToken' was expected. at GitHub.DistributedTask.ObjectTemplating.Tokens.TemplateTokenExtensions.AssertString(TemplateToken value, String objectDescription) at GitHub.DistributedTask.Pipelines.ObjectTemplating.PipelineTemplateConverter.ConvertToStepInputs(TemplateContext context, TemplateToken inputs, Boolean allowExpressions) at GitHub.DistributedTask.Pipelines.ObjectTemplating.PipelineTemplateConverter.ConvertToStep(TemplateContext context, TemplateToken stepsItem, ReferenceNameBuilder nameBuilder) at GitHub.DistributedTask.Pipelines.ObjectTemplating.PipelineTemplateConverter.ConvertToSteps(TemplateContext context, TemplateToken steps) at GitHub.Runner.Worker.ActionManifestManager.ConvertRuns(IExecutionContext executionContext, TemplateContext templateContext, TemplateToken inputsToken, String fileRelativePath, MappingToken outputs) at GitHub.Runner.Worker.ActionManifestManager.Load(IExecutionContext executionContext, String manifestFile)

Failed to load /home/runner/work/selfhosted/selfhosted/./.github/actions/setup-build-env/action.yml