LoadImage: System.Drawing.Common is not supported on this platform

[Suki Gill]

Hi
I've been creating an ExcelDNA addin using v1.6.0 with .Net Core 6.0.

I decided to add some images to my Addin's ribbon.

I used the standard template for doing this.

.dna file

  <ExternalLibrary Path="RibbonCore.dll" ExplicitExports="false" LoadFromBytes="true" Pack="true" IncludePdb="false" />
      <Image Name="connected" Path="Images\AppointmentColor3.png"/>  (my image)
  </DnaLibrary>

.ribbon xml

<?xml version="1.0" encoding="utf-8" ?>
<customUI xmlns='http://schemas.microsoft.com/office/2009/07/customui' loadImage='LoadImage'  >
  <ribbon>
    <tabs>
      <tab id='CustomTab' label='My Tab'>
        <group id='SampleGroup' label='My Sample 2010 Group'>
          <button id='Button1' label='My Button 2010 Label' image='connected' />

          <editBox id='someid' label='Doit' image='connected'  />                              
        </group >
      </tab>
    </tabs>
  </ribbon>
</customUI>


The above works fine and I get an image displayed with the button and editBox.

My Addin hooks into Windows Active directory service, hence I need to make use of the the frameworks
    System.DirectoryServices (6.0.0) - this has a dependency on    System.Drawing.Common (6.0.0) which it installs.
    System.DirectoryServices.AccountManagement. (6.0.0)

As soon as I pull in the above nuget packages it fails to initialise the Ribbon when there are images attached to any of the ribbon controls.

The error I get
    An exception occcured while calling function 'LoadImage'. The exception message is:
    System.Drawing.Common is not supported on this platform.

If I take the above DirectoryServices packages out it works fine.

Regards

Suki

[Suki Gill]

I was able to work around by downgrading to System.DirectoryServices packages to version 4.5.0.

It's still unclear to me why this is happens with 6.0.0 with the target platform being Windows.

[turhan]

If you also face this issue like me, here is more info and suggestions on how to resolve it.

https://github.com/Excel-DNA/ExcelDna/issues/566