framework change 2.0 to 4.0

Question

0.00/5 (No votes)

See more:

Hi,
I am using a class built on version 2.0 framework, I have been copied that to a new project being built on framework 4
making out changes in functions
I have got an error when creating instance object for that class

Mixed mode assembly is built against version 'v2.0.50727' of the runtime and cannot be loaded in the 4.0 runtime without additional configuration information.

How would I go further without recompiling the old project to 4.0 and reflecting the changes?

Posted 21-May-14 1:45am

balajidileepkumar

Add a Solution

2 solutions

Solution 3

Try to in web.confing.

<startup uselegacyv2runtimeactivationpolicy="true">
<supportedruntime version="v4.0" sku=".NETFramework,Version=v4.0">
<requiredruntime version="v4.0.20506">

OR
you can click here : http://stackoverflow.com/questions/6425707/mixed-mode-assembly-is-built-against-version-v2-0-50727-of-the-runtime[^]

Posted 21-May-14 1:51am

Pramod Singh (C)

Updated 21-May-14 1:53am

v2

Comments

ZurdoDev 21-May-14 7:53am

Try what exactly?

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

OriginalGriff · Accepted Answer · 2014-05-21T01:51:00

If you get an "odd" error message, then the first thing to do is google the whole message:
Google[^] Normally, a quick follow of teh first page of links is enough to find a solution.

In this case it's the second hit that solves it: http://stackoverflow.com/questions/2455654/what-additional-configuration-is-necessary-to-reference-a-net-2-0-mixed-mode[^]