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error : Your project does not reference ".NETFramework,Version=v4.7.2" framework

I am trying to have a solution/project that can be built using Visual Studio 2019, MonoDevelop and dotnet. Building the project using mono (msbuild project.csproj) after building using dotnet I am getting the error message below.     Build started 1/3/2021 1:41:21 AM. Project "/home/u1/gitprj/mopcua/MonoOPC/opcuac/opcuac.csproj" on node 1 (default targets). /usr/lib/mono/xbuild/Microsoft/NuGet/Microsoft.NuGet.targets(186,5): error : Your project does not reference ".NETFramework,Version=v4.7.2" framework. Add a reference to ".NETFramework,Version=v4.7.2" in th$  "TargetFrameworks" property of your project file and then re-run NuGet restore. [/home/u1/gitprj/mopcua/MonoOPC/opcuac/opcuac.csproj] Done Building Project "/home/u1/gitprj/mopcua/MonoOPC/opcuac/opcuac.csproj" (default targets) -- FAILED. Build FAILED. "/home/u1/gitprj/mopcua/MonoOPC/opcuac/opcuac.csproj" (default target) (1) -> (ResolveNuGetPackageAssets target) -&

The following add-ins could not be started MonoDevelop.GnomePlatform

Installing MonoDevelop in OpenSUSE 12.2 from its repository was very easy. When running it for the first time though I got the message: The following add-ins could not be started: The root of the trace shows MonoDevelop.GnomePlatform,2.8 A quick search shows that MonoDevelop depends on libgnomeui . This should have been part of dependencies when installing the application but well.... Below is the screen shot of the error message. References: http://software.1713.n2.nabble.com/MonoDevelop-and-openSUSE-12-1-td7462957.html [2013/04/09] - Same issue observed in OpenSUSE 12.3 and also the same fix. [2014/11/02] - Same issue observed in OpenSUSE 13.3, mondevelop 3.0.6 and the same fix.

Monodevelop does not start on Linux Mint 17

I have installed Monodevelop using Software Manager in Linux Mint 17. It seems like all went okay but nothing was working. It turns out that missing dependencies was the culprit. To fix it do the following: $: sudo apt-get install mono-complete $: sudo apt-get install gtk-sharp3 Reference(s): http://stackoverflow.com/questions/25791149/monodevelop-will-not-start-in-mint-17