Changes not working for persistent with Gravity

Vryheid joined.
Valence Electron joined.
Format:
CAP
Sleep Clause Mod: Limit one foe put to sleep
Species Clause: Limit one of each Pokemon
OHKO Clause: OHKO moves are banned
Moody Clause: Moody is banned
Evasion Moves Clause: Evasion moves are banned
Endless Battle Clause: Forcing endless battles is banned.
HP Percentage Mod: HP is reported as percentages
Vryheid's team:
Cyclohm / Scizor / Tomohawk / Cresselia / Chansey / Mollux
Valence Electron's team:
Fidgit
Battle between Vryheid and Valence Electron started!
Go! Chansey!
Valence Electron sent out Fidgit!
Turn 1
Chansey used Protect!
Chansey protected itself!
The opposing Fidgit used Gravity!
Error parsing: -sideend|move: Gravity
TypeError: Object #<Object> has no method 'removeSideCondition'
    at Battle.runMinor (http://play.pokemonshowdown.com/js/battle.js?2874287d:4375:10)
Turn 2
dtalley11 joined.
Welcome to battle-cap-13!
dtalley11: well now
dtalley11: that's a prudy looking error
Vryheid: can you screenshot what gravity looks like
Vryheid: on your end I mean
Vryheid: or at least copy and paste the text in a pastebin or something
Vryheid: latter is prob easier





---------------------------------
changes


pseudoWeather: 'gravity', --> sideCondition: 'gravity',
this.add('-fieldstart', 'move: Gravity'); --> this.add('-sideend', 'move: Gravity');
this.add('-fieldend', 'move: Gravity'); --> this.add('-sideend', 'move: Gravity');
target: "all", --> target: "allySide",


New code:
    "gravity": {
        num: 356,
        accuracy: true,
        basePower: 0,
        category: "Status",
        desc: "For 5 turns, the evasion of all active Pokemon is 0.6x. At the time of use, Bounce, Fly, Magnet Rise, Sky Drop, and Telekinesis end immediately for all active Pokemon. During the effect, Bounce, Fly, High Jump Kick, Jump Kick, Magnet Rise, Sky Drop, Splash, and Telekinesis are prevented from being used by all active Pokemon. Ground-type attacks, Spikes, Toxic Spikes, and the Ability Arena Trap can affect Flying-types or Pokemon with the Ability Levitate. Fails if this move is already in effect.",
        shortDesc: "For 5 turns, negates all Ground immunities.",
        id: "gravity",
        isViable: true,
        name: "Gravity",
        pp: 5,
        priority: 0,
        sideCondition: 'gravity',
        effect: {
            duration: 5,
            durationCallback: function(target, source, effect) {
                if (source && source.ability === 'persistent') {
                    return 7;
                }
                return 5;
            },
            onStart: function() {
                this.add('-sideend', 'move: Gravity');
            },
            onAccuracy: function(accuracy) {
                if (typeof accuracy !== 'number') return;
                return accuracy * 5/3;
            },
            onModifyPokemonPriority: 100,
            onModifyPokemon: function(pokemon) {
                pokemon.negateImmunity['Ground'] = true;
                var disabledMoves = {bounce:1, fly:1, highjumpkick:1, jumpkick:1, magnetrise:1, skydrop:1, splash:1, telekinesis:1};
                for (var m in disabledMoves) {
                    pokemon.disabledMoves[m] = true;
                }
                var applies = false;
                if (pokemon.removeVolatile('bounce') || pokemon.removeVolatile('fly') || pokemon.removeVolatile('skydrop')) {
                    applies = true;
                    this.cancelMove(pokemon);
                }
                if (pokemon.volatiles['magnetrise']) {
                    applies = true;
                    delete pokemon.volatiles['magnetrise'];
                }
                if (pokemon.volatiles['telekinesis']) {
                    applies = true;
                    delete pokemon.volatiles['telekinesis'];
                }
                if (applies) this.add('-activate', pokemon, 'Gravity');
            },
            onBeforeMove: function(pokemon, target, move) {
                var disabledMoves = {bounce:1, fly:1, highjumpkick:1, jumpkick:1, magnetrise:1, skydrop:1, splash:1, telekinesis:1};
                if (disabledMoves[move.id]) {
                    this.add('cant', pokemon, 'move: Gravity', move);
                    return false;
                }
            },
            onResidualOrder: 22,
            onEnd: function() {
                this.add('-sideend', 'move: Gravity');
            }
        },
        secondary: false,
        target: "allySide",
        type: "Psychic"
    },