Can't use .NET Standard library from Xamarin application

Hello,
I have a .NET standard library for the data access layer of an application. When code is run that is contained in the library I get the following output and then the application hangs. System.Net.http is referenced in my project.
Any help would be appreciated.

            03-01 13:49:52.571 D/Mono    (  466): Image addref System.Net.Http[0x7e2f0fde00] -> System.Net.Http.dll[0x7e2f4b6000]: 2
    03-01 13:49:52.571 D/Mono    (  466): Prepared to set up assembly 'System.Net.Http' (System.Net.Http.dll)
    03-01 13:49:52.571 D/Mono    (  466): Assembly System.Net.Http[0x7e2f0fde00] added to domain RootDomain, ref_count=1
    03-01 13:49:52.575 D/Mono    (  466): AOT: image 'System.Net.Http.dll.so' not found: dlopen failed: library "/data/app/TestRecipeApp.TestRecipeApp-1/lib/arm64/libaot-System.Net.Http.dll.so" not found
    03-01 13:49:52.578 D/Mono    (  466): AOT: image '/usr/local/lib/mono/aot-cache/arm64/System.Net.Http.dll.so' not found: dlopen failed: library "/data/app/TestRecipeApp.TestRecipeApp-1/lib/arm64/libaot-System.Net.Http.dll.so" not found
    03-01 13:49:52.578 D/Mono    (  466): Config attempting to parse: 'System.Net.Http.dll.config'.
    03-01 13:49:52.578 D/Mono    (  466): Config attempting to parse: '/usr/local/etc/mono/assemblies/System.Net.Http/System.Net.Http.config'.
    03-01 13:49:52.578 D/Mono    (  466): Assembly Ref addref netstandard[0x7e2f549c00] -> System.Net.Http[0x7e2f0fde00]: 2
    03-01 13:49:52.579 D/Mono    (  466): Assembly Ref addref System.Net.Http[0x7e2f0fde00] -> mscorlib[0x7e46bad000]: 14
    Loaded assembly: System.Net.Http.dll [External]