Failed to compile plural forms

[victorenator]

The log contains

WARNING[Main]: [intllib] failed to compile plural forms: [string "..."]:5: ')' expected near ','

for the following plural forms:

nplurals=3; plural=(n%10==1 && n%100!=11 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2);