An error occurred trying to start process '/usr/bin/pwsh' with working directory '/home/runner/work/mdbook/mdbook/src'. No such file or directory

Possible null reference return.

Possible null reference assignment.

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

Possible null reference argument for parameter 'item' in 'void List<string>.Add(string item)'.

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

Cannot convert null literal to non-nullable reference type.

Possible null reference return.

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

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