Dev Stack Source

Answer : In your Solution or Project you will find a file called packages.config . Open this file and you will see all the packages that NuGet has installed. The file will look something like this: <?xml version="1.0" encoding="utf-8"?> <packages> <package id="Json" version="2.0.3" targetFramework="net45" /> </packages> Simply delete the line of your package and save the file. <?xml version="1.0" encoding="utf-8"?> <packages> </packages> Then run NuGet again and it should install. The JSON.NET NuGet package should just work with a Windows Phone 8.0 project. Adding it in VS2012 NuGet manager pulls in the WP7 version of JSON.NET. (packages\Newtonsoft.Json.4.5.10\lib\sl3-wp\Newtonsoft.Json.dll) JSON.NET is now also available as a Portable Class Library which you can consume from WP8 (available in NuGet or in source form). UPDATE: The latest version of N...

Answer : pip install --upgrade --force-reinstall <package> When upgrading, reinstall all packages even if they are already up-to-date. pip install -I <package> pip install --ignore-installed <package> Ignore the installed packages (reinstalling instead). You might want to have all three options: --upgrade and --force-reinstall ensures reinstallation, while --no-deps avoids reinstalling dependencies. $ sudo pip install --upgrade --no-deps --force-reinstall <packagename> Otherwise you might run into the problem that pip starts to recompile Numpy or other large packages. If you want to reinstall packages specified in a requirements.txt file, without upgrading, so just reinstall the specific versions specified in the requirements.txt file: pip install -r requirements.txt --ignore-installed