CODEWITHSUNDEEP
c#.netvisual-studio-2012
Tomáš Zato
Tomáš Zato

Reputation: 53139

Forcing .NET framework 3.5 in Microsoft Visual C# 2012

Because of compatibility reasons, I need to compile my project under .NET 3.5. However Microsoft Visual C# 2012 does not offer that option.

I'm getting this compiler error:

The type 'System.Action' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Core, Version=3.5.0.0

For this code:

powerTrader.PowerStartedCallback = delegate
{
    EmergencyMode(false);
};
powerTrader.PowerStoppedCallback = delegate
{
    EmergencyMode(true);
};

This is available selection in the IDE:
enter image description here

What should I do?

Upvotes: 0

Views: 1001

Answers (1)

Lex Li
Lex Li

Reputation: 63183

Portable Class Libraries are .NET 4+ only. It does not support .NET 3.5.

You have to create a normal class library project instead.

Upvotes: 3

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