Process completed with exit code 1.

The type or namespace name 'ExpectedExceptionAttribute' could not be found (are you missing a using directive or an assembly reference?)

Node.js 20 actions are deprecated. The following actions are running on Node.js 20 and may not work as expected: actions/checkout@v4, actions/setup-dotnet@v4, actions/setup-python@v4, actions/upload-artifact@v4. Actions will be forced to run with Node.js 24 by default starting June 2nd, 2026. Node.js 20 will be removed from the runner on September 16th, 2026. Please check if updated versions of these actions are available that support Node.js 24. To opt into Node.js 24 now, set the FORCE_JAVASCRIPT_ACTIONS_TO_NODE24=true environment variable on the runner or in your workflow file. Once Node.js 24 becomes the default, you can temporarily opt out by setting ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION=true. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Converting null literal or possible null value to non-nullable type.

Cannot convert null literal to non-nullable reference type.

Possible null reference return.

Cannot convert null literal to non-nullable reference type.

Non-nullable event 'HighlightingInvalidated' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the event as nullable.

Non-nullable field '_highlighter' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the field as nullable.

Possible null reference return.

Nullability of reference types in type of parameter 'document' of 'void XshdHighlightedLineSource.SetDocument(TextDocument document)' doesn't match implicitly implemented member 'void IHighlightedLineSource.SetDocument(TextDocument? document)' (possibly because of nullability attributes).

The event 'ReplaceableActiveElement.TextChanged' is never used

The event 'InsertionContext.ReplaceableSegmentElement.TextChanged' is never used