Unable to load shared library 'user32.dll' or one of its dependencies.

Question

Greetings.
I have an api made in asp.net core hosted on Azure and one of the services offered by the api is the generation of .pdf files that are downloaded by a webapp. To solve the problem of storing these generated .pdf files, I created a storage account and created a container to store the generated files. I did the tests with the local api, and everything worked fine, however, when I use the api that is in Azure I'm getting this exception message: Unable to load shared library 'user32.dll' or one of its dependencies. In order to help diagnose loading problems, consider setting the LD_DEBUG environment variable: libuser32.dll: cannot open shared object file: No such file or directory

The error description indicates that the file or directory was not found, however, in the local api everything goes fine, and I also checked if the file is being generated and stored in the storage account's container, and it is. What could be going wrong?

Answer 1

azure is 64 bit only. you will need to use 32 bit VM, or get a 64 bit version of the library used.

Answer 2

After analyzing the problem, I found that maybe one of my nuget packages could be causing the problem. I was using the PdfSharp package to generate my pdf files, however the package I was using was incompatible with Asp.Net Core. It worked fine on my local machine, as it was a Windows system, but in hosting the service, as it was a Linux machine, the problem occurred when generating the pdf.
I switched from the PdfSharp package to the PdfSharpCore package and everything works fine now.