# Publishers.ReplaceError A publisher that replaces any errors in the stream with a provided element. ``` struct ReplaceError where Upstream : Publisher ``` ## Topics ### Creating a replace error Publisher [`init(upstream:output:)`](/documentation/Combine/Publishers/ReplaceError/init(upstream:output:)) Creates a publisher that replaces any errors in the stream with a provided element. ### Declaring supporting types [`Publishers.ReplaceError.Output`](/documentation/Combine/Publishers/ReplaceError/Output-swift.typealias) The kind of values published by this publisher. [`Publishers.ReplaceError.Output`](/documentation/Combine/Publishers/ReplaceError/Output-swift.typealias) The kind of values published by this publisher. [`Publishers.ReplaceError.Failure`](/documentation/Combine/Publishers/ReplaceError/Failure) The kind of errors this publisher might publish. ### Inspecting publisher properties [`upstream`](/documentation/Combine/Publishers/ReplaceError/upstream) The publisher from which this publisher receives elements. [`output`](/documentation/Combine/Publishers/ReplaceError/output-swift.property) The element with which to replace errors from the upstream publisher. [`output`](/documentation/Combine/Publishers/ReplaceError/output-swift.property) The element with which to replace errors from the upstream publisher. ### Comparing publishers [`==(_:_:)`](/documentation/Combine/Publishers/ReplaceError/==(_:_:)) Returns a Boolean value that indicates whether two publishers are equivalent. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)