> For the complete documentation index, see [llms.txt](https://valex.gitbook.io/valex/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://valex.gitbook.io/valex/external-fixes/the-memory-could-not-be-read.md).

# The memory could not be read

Install both .NET SDK 9.0 and 8.0:

* [**.NET SDK 9.0 Download**](https://dotnet.microsoft.com/en-us/download/dotnet/thank-you/sdk-9.0.100-preview.1-windows-x64-installer)
* [**.NET SDK 8.0 Download**](https://dotnet.microsoft.com/en-us/download/dotnet/thank-you/sdk-8.0.412-windows-x64-installer)

Make sure to run both installers and complete setup before restarting Valex.