Copy-paste fix pattern
fn main() {
var a = 1
var b = 2
save a + b
}Why it happens
Semicolons are optional at normal line ends, but still required when more than one statement appears on one line or inside C-style for headers.
How to fix it
Put each statement on its own line, or add semicolons in compact one-line forms.
If the IDE reports a line number, fix that line first, then scan the previous line for an unclosed string, bracket, or block.