Syntax (E0xxx)

Syntax errors are reported by the parser before any name resolution or type checking happens. A file with syntax errors is still parsed as far as possible, so later diagnostics may also appear, but fixing the syntax errors first usually clears them.

E0001 syntax

Error. The source text does not parse as Kagari, or uses a construct that is not allowed in this kind of file — for example, narrative forms such as s!, choice! or t! inside a .kis file, which only accepts plain script code.

#[scene]
pushdown fn Scene() {
    s!(t!["x"]);
}

Fix: correct the reported syntax, or move form-based code into a .kix file (here, rename main.kis to main.kix).