--- title: "Debugging issues when integrating Nutrient" canonical_url: "https://www.nutrient.io/guides/ios/knowledge-base/debugging-issues/" md_url: "https://www.nutrient.io/guides/ios/knowledge-base/debugging-issues.md" last_updated: "2026-05-14T16:53:43.872Z" description: "Solutions for common issues and errors in Nutrient iOS SDK with debugging tips and workarounds." --- After integrating Nutrient, you might see the error `error: Couldn’t IRGen expression, no additional error` when using lldb with `p`, `po`, or `expr`. This is an issue in lldb, which happens when you’re trying to integrate Nutrient in a Swift-only project. A workaround for this issue is to add Objective-C files and a bridging header to your project, like what’s mentioned in [this Stack Overflow post](https://stackoverflow.com/questions/54776459/whats-the-solution-for-error-couldnt-irgen-expression-no-additional-error/61824142#61824142). Currently, there’s a hard requirement that the version of the Swift compiler that builds source files and the version of lldb used to debug must come from the same toolchain. The underlying issue here is caused because lldb isn’t able to build a Swift context for expression evaluation (including variable inspection) without importing the full tree of module dependencies. We also reported this via FB7718242. As a workaround, you can delete the Nutrient dSYMs (`PSPDFKit-dSYMs` and `PSPDFKitUI-dSYMs`) from all Spotlight-indexable locations or your drive. This workaround won’t work on projects that integrate via CocoaPods, because CocoaPods automatically downloads and handles dSYMs. For more details, take a look at [@steipete](https://twitter.com/steipete)’s [How to Fix LLDB: Couldn’t IRGen Expression](https://steipete.com/posts/couldnt-irgen-expression/) blog post. --- ## Related pages - [Adjusting Size Of Popovers](/guides/ios/knowledge-base/adjusting-size-of-popovers.md) - [Fix app store connect operation errors in Xcode](/guides/ios/knowledge-base/app-store-connect-operation-errors.md) - [Archive Errors Cocoapods](/guides/ios/knowledge-base/archive-errors-cocoapods.md) - [Customize your iOS navigation bar above crop UI](/guides/ios/knowledge-base/customize-the-navigation-bar-in-crop.md) - [Adding Swipe Gesture Recognizer](/guides/ios/knowledge-base/adding-swipe-gesture-recognizer.md) - [Configuring Scroll Views](/guides/ios/knowledge-base/configuring-scroll-views.md) - [Adding Vector Image Annotation From Instant Json](/guides/ios/knowledge-base/adding-vector-image-annotation-from-instant-json.md) - 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