message Group {
    required int32 group_id = 1;
    required string name = 2;
    optional string icon_url = 3;
}

message InterestsGroups {
    repeated Group groups = 1;
}

Error: illegal token ';', '{' expected (line 12)
    at illegal (/Users/kosh/work/projects/badoo/_deploy/webpack/node_modules/protobufjs/src/tokenize.js:58:16)
    at skip (/Users/kosh/work/projects/badoo/_deploy/webpack/node_modules/protobufjs/src/tokenize.js:192:19)
    at parseGroup (/Users/kosh/work/projects/badoo/_deploy/webpack/node_modules/protobufjs/src/parse.js:335:9)
    at parseField (/Users/kosh/work/projects/badoo/_deploy/webpack/node_modules/protobufjs/src/parse.js:304:13)
    at parseType (/Users/kosh/work/projects/badoo/_deploy/webpack/node_modules/protobufjs/src/parse.js:272:25)
    at parseCommon (/Users/kosh/work/projects/badoo/_deploy/webpack/node_modules/protobufjs/src/parse.js:235:17)
    at parse (/Users/kosh/work/projects/badoo/_deploy/webpack/node_modules/protobufjs/src/parse.js:644:21)
    at process (/Users/kosh/work/projects/badoo/_deploy/webpack/node_modules/protobufjs/src/root.js:113:30)