IronPDF Slim IronSoftwareDeploymentException
For users using IronPdf.Slim v2025.5.6 you will encounter the following error when running any process with IronPdf.Slim.
IronSoftware.Exceptions.IronSoftwareDeploymentException: 'Error while deploying Pdfium for IronPdf: 'Multiple issues occurred while trying to deploy Pdfium (Failed to locate 'IronPdfInterop' at 'C:\Users\user\source\repos \Demo.Blazor.IronOcr\TestIron Pdf\TestIronPdf\bin\Debug\net8.0\runtimes\win-x64 \native') (Failed to locate 'IronPdfInterop' at 'C:\Users\user\source\repos This exception was originally thrown at this call stack:IronSoftware.Exceptions.IronSoftwareDeploymentException
The main issue with this exception is that the dependency is only tied to IronPDF, not IronPdf.Slim, resulting in IronPdf.Slim being unable to find the correct packages to function correctly. This error only applies to users using IronPdf.Slim v2025.5.6.
Solution
To resolve this, please also install the IronSoftware.Native.PdfModel package. After installing that package, the error will be resolved. This is currently a workaround for IronPdf.Slim v2025.5.x and will be fixed in future versions.
Curtis Chau holds a Bachelor’s degree in Computer Science (Carleton University) and specializes in front-end development with expertise in Node.js, TypeScript, JavaScript, and React. Passionate about crafting intuitive and aesthetically pleasing user interfaces, Curtis enjoys working with modern frameworks and creating well-structured, visually appealing manuals.
