my .Net app gets load error for NuGet package HDF5DotNet.DLL x86 on Windows 10 virtualization by VirtualBox or VMware on ubuntu


My .NET windows forms app gets error (below) when it tries to call a function in the HDF5dotNet.DLL NuGet package.

My app runs on Windows 10, which runs in a 64bit Oracle VirtualBox (ie. virtual machine) that was spun up by ubuntu linux on an actual physical machine.

UPDATE: I get same error using VMware instead of VirtualBox. Also, same exact copy of my app calls HDF5dotNet with no error when I run on boot Windows native (instead of ubuntu).

However, when project is copied as-is to a physical windows 10 machine, it runs ok and loads and runs a function in the HDF5dotNet.DLL NuGet package ok.

I've tried both x64 and x86 versions of the HDF5.NET NuGet package. Same problem.

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System.IO.FileNotFoundException HResult=0x8007007E Message=Could not load file or assembly 'HDF5DotNet.dll' or one of its dependencies. The specified module could not be found.
Source=2_HDF5_WindowsFormsApp1 StackTrace: at HDF5_Class.read_color_table(String color_table_pathname, Double[,]& color_table_dataset) in C:\PRIMARY\WORK\2_HDF5_WindowsFormsApp1\SOURCE\HDF5_file.cs:line 1047 at _2_HDF5_WindowsFormsApp1.Form1.Form1_Load(Object sender, EventArgs e) in C:\PRIMARY\WORK\2_HDF5_WindowsFormsApp1\Form1.cs:line 27 at System.Windows.Forms.Form.OnLoad(EventArgs e) at System.Windows.Forms.Form.OnCreateControl() at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
at System.Windows.Forms.Control.CreateControl() at System.Windows.Forms.Control.WmShowWindow(Message& m) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.ScrollableControl.WndProc(Message& m) at System.Windows.Forms.Form.WmShowWindow(Message& m) at System.Windows.Forms.Form.WndProc(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

asked on Stack Overflow Feb 16, 2019 by Doug Null • edited Mar 11, 2019 by Doug Null

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