Skip to main content

.NET Core - Remove older SDKs and runtimes

Last week I talked about a bug we discovered in the latest(at the moment of writing) .NET core runtimes that caused our Razor ViewComponents no longer being rendered.

We found a workaround by explicitly setting the SDK version using a global.json file:

The global.json file above selects 6.0.300 or any later feature band or patch for 6.0 that is installed on the machine. Although this is a good workaround we wanted to avoid to have all developers update their projects.

So on the build server we tried a different approach. Our first attempt was rolling back the Visual Studio build tools but that didn’t turn out to be a good solution.

Luckily we can also uninstall a .NET Core SDK version using the .NET Uninstall Tool (dotnet-core-uninstall) . This tool is not installed out-of-the-box so you first need to download it here. After downloading it, run the MSI to install it.

Running the tool

Now that we have the uninstall tool installed, we can execute it.

First run the dotnet-core-uninstall list command to see the list of installed .NET SDKs and runtimes that can be removed with this tool.

As you can see in the screenshot above, some SDKs and runtimes are required by Visual Studio and they're displayed with a note of why it isn't recommended to uninstall them.

Now we can do a dry run to see what will happen when we do an uninstal by using the dry-run or whatif command:

If everything looks good you can finally do a real delete using the remove command:

Remark: Make sure you are running your commandline with administrator privileges.

Popular posts from this blog

DevToys–A swiss army knife for developers

As a developer there are a lot of small tasks you need to do as part of your coding, debugging and testing activities.  DevToys is an offline windows app that tries to help you with these tasks. Instead of using different websites you get a fully offline experience offering help for a large list of tasks. Many tools are available. Here is the current list: Converters JSON <> YAML Timestamp Number Base Cron Parser Encoders / Decoders HTML URL Base64 Text & Image GZip JWT Decoder Formatters JSON SQL XML Generators Hash (MD5, SHA1, SHA256, SHA512) UUID 1 and 4 Lorem Ipsum Checksum Text Escape / Unescape Inspector & Case Converter Regex Tester Text Comparer XML Validator Markdown Preview Graphic Color B

Help! I accidently enabled HSTS–on localhost

I ran into an issue after accidently enabling HSTS for a website on localhost. This was not an issue for the original website that was running in IIS and had a certificate configured. But when I tried to run an Angular app a little bit later on http://localhost:4200 the browser redirected me immediately to https://localhost . Whoops! That was not what I wanted in this case. To fix it, you need to go the network settings of your browser, there are available at: chrome://net-internals/#hsts edge://net-internals/#hsts brave://net-internals/#hsts Enter ‘localhost’ in the domain textbox under the Delete domain security policies section and hit Delete . That should do the trick…

Azure DevOps/ GitHub emoji

I’m really bad at remembering emoji’s. So here is cheat sheet with all emoji’s that can be used in tools that support the github emoji markdown markup: All credits go to rcaviers who created this list.