Runtime error while opening a windows form of a .net 4.5 project from .net 2.0 project

Question

I have two .net projects in my solution.First project is .net 2.0 windows forms project and the second project is .net 4.5 windows forms project.I'm opening a windows form of my .net 4.5 project from .net 2.0 project. for code example:

    ReportManager.Form1 f1 = new ReportManager.Form1();
    f1.Show();

it gives following run time error (ReportManager is my .net 4.5 project name)

Could not load file or assembly 'ReportManager, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified. any advice is welcome.

How are you getting it to compile? Or are you trying to explicitly load the .net 4.5 assembly at runtime? — Julia Hayward, Jun 19 '19 at 08:41
this errors came just when I'm compiling the solutions after several clean an bild attempts now deferment error is coming "The thread 0x1a3c has exited with code 259 (0x103)." — Sajith Dushmantha Samarathunga, Jun 19 '19 at 11:23
OK, so it's specifically *not* a "run time error". A .NET 2.0 project won't compile against more recent dependencies. Can you not migrate your project forward? — Julia Hayward, Jun 19 '19 at 12:45
No I can't because my .NET 2.0 project is using some SDK which only supports for .NET 2.0 — Sajith Dushmantha Samarathunga, Jun 19 '19 at 14:26
Your project, built against .NET 4.5, should still be able to make use of a .NET 2.0 SDK (and your ReportManager too), though? — Julia Hayward, Jun 19 '19 at 14:35
Did try to convert and build my .NET 2.0 project and this error came "Interop type 'LOGkeeper.ManagerClass' cannot be embedded. Use the applicable interface instead." — Sajith Dushmantha Samarathunga, Jun 19 '19 at 14:56

score 1 · Accepted Answer · answered Jun 19 '19 at 15:07

1

From the comment "Did try to convert and build my .NET 2.0 project and this error came "Interop type 'LOGkeeper.ManagerClass' cannot be embedded. Use the applicable interface instead."

Perhaps this helps in migrating the project up from .NET 2.0?

Interop type cannot be embedded

answered Jun 19 '19 at 15:07

Julia Hayward

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Thanks, It worked Julia Hayward. I just convert my .NET 2.0 project to .NET 4.5 and on the reference section right clicked on my .NET 2.0 SDK library and select properties then there was a key named "Embed Interop Types". I just did set it to "false" and now every thing works fine. – Sajith Dushmantha Samarathunga Jun 20 '19 at 05:09

Runtime error while opening a windows form of a .net 4.5 project from .net 2.0 project

1 Answers1