MissingMethodException when running a unit test that uses FSharp.Data

Question

I have a NUnit unit test that is written in a normal F# library but targets F# code in a Portable Class Library.

When I run this test (in Visual Studio 2013), I get the following exception:

Result Message: System.MissingMethodException : Method not found:
 'Microsoft.FSharp.Control.FSharpAsync`1<System.IO.TextReader> FSharp.Data.Runtime.IO.asyncReadTextAtRuntime(System.Boolean, System.String, System.String, System.String, System.String)'.

This is what I have in my app.config in the Portable Class Library:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="FSharp.Core" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-3.3.1.0" newVersion="3.3.1.0" />
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
</configuration>

This is what I have in the app.config of my normal F# library:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="FSharp.Core" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-4.3.1.0" newVersion="4.3.1.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="nunit.framework" publicKeyToken="96d09a1eb7f44a77" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-2.6.3.13283" newVersion="2.6.3.13283" />
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
</configuration>

Answer 1

Apparently, FSharp.Data does not support PCL libraries using profile 7. After changing my PCL project profile to 47 everything works as expected.