System.DllNotFoundException /app/mono/lib/libgdiplus.so

[sergeykosik]

I am trying to run the asp.net app using FlexCel (http://www.tmssoftware.com/site/flexcel.asp ) on heroku and getting DLLNotFoundException.
As I understand this is more about Mono issue.
Any advise on how I can solve the issue with DLLNotFoundException /app/mono/lib/libgdiplus.so?

[fx-adi-lima]

Try to use a .config file, maybe app.exe.config, containing the following:
(assuming the NotFound dll was libc, and if not, change the line to point to your exact location of that library)

<configuration>
  <dllmap dll="libc" target="/lib64/libc-2.26.so"/>
</configuration>

Then launch using --config like this:
mono --config app.exe.config MyApp.exe

Of course, you need to change the name accordingly.
:)