Yep, this package won't apply. Profile24 is equivalent to net45+sl5, but the package doesn't support SL5 at all. It'd be nice if nuget didn't just throw up profile numbers in the error messages, that'd make this a bit easier to understand. Perhaps something like "You are trying to install this package into a project that targets a portable profile supporting .NET Framework 4.5 and Silverlight 5 but the package doesn't contain any..."

@ericstj So the solution would be to add a Silverlight5 lib target to my package ?

I added Silverlight5 target. This did not help.

Could not install package 'WebSocket.Portable.Core 1.2.4'. You are trying to install this package into a project that targets '.NETPortable,Version=v4.0,Profile=Profile24', but the package does not contain any assembly references or content files that are compatible with that framework. For more information, contact the package author.

Is the package available anywhere, along with the project you are trying to install it into?

@yishaigalatzer The githup / nuget package is available at

https://github.com/NVentimiglia/WebSocket.Portable

I am importing this package into a new PCL library (fresh from visual studio).

Thanks for getting back. What exact flavor of pcl?

A new one. I tried a number of combinations including one that targeted the same platforms as the websocket library and another that targeted a smaller subset. Xamarin iOS, Xamarin Droid, and .net 4.5 were my minimal.

Would you mind sharing your project, to make sure we are verifying the exact same thing you are using.

https://drive.google.com/file/d/0B_kXglJqPnm_M1NrRUVYUlNIZGM/view?usp=sharing

@ericstj do you have any more suggetions on this?

@NVentimiglia please update to NuGet 3.2 for the continuation of this discussion

Sorry for the delay, have been out of town.

@ericstj So the solution would be to add a Silverlight5 lib target to my package ?
No you need to expand the portable profile folder to include SL5.

Consider that PCL requires a dll to compile against. It needs one that supports all the targets.

So the project you are installing into is targeting .NETPortable,Version=v4.0,Profile=Profile24. Nuget translates this to portable-net45+sl5. If you check the PCL targeting dialog in the project properties of the project you'd see something similar.

Now consider if any of the folders support both net45 and sl5.
MonoAndroid -> nope
MonoTouch -> nope
portable-net45+wp8+win8 -> nope, doesn't support SL5
sl5 -> nope doesn't support net45

From the latest in GitHub
portable-net45+win+wpa81+wp80+Xamarin.iOS10+MonoAndroid10+MonoTouch10 -> nope, doesn't support SL5.

So, if you wanted to use this package in a PCL that includes SL5 support you need to build the PCL (either a single DLL, or a separate DLL) to a PCL profile that includes SL5.
So you'd change this project from targeting net45+win8+wpa81+wp8 to include SL5 as well. That'd be Profile344 I believe. This all assumes you can actually do that and still have the surface area you need to implement WebSocket.Portable.

After doing this you'd have a folder in your package like the following:
portable-net45+win+wpa81+wp80+SL5+Xamarin.iOS10+MonoAndroid10+MonoTouch10 -> YES supports both net45 and SL5.

@ericstj That worked. I manually adjusted my nupkg file with a target for portable-net45+win+wpa81+wp80+SL5+Xamarin.iOS10+MonoAndroid10+MonoTouch10