3.7.2微信小游戏报错

Creator 3.x
#1

之前用3.7.1打包没事
现在用3.7.2打包后，微信开发者工具没事，真机运行出现报错，好像不影响游戏运行

Unhandled promise rejection <TypeError: p.readFile is not a function. (In ‘p.readFile({filePath:this.path,encoding:“utf8”,success:e=>{try{this.cacheMap=JSON.parse(e.data)}catch{}}})’, ‘p.readFile’ is undefined)>
@
at z@weapp: (wechat-game-runtime:1:68724)
at @weapp: (wechat-game-runtime:1:70351)
V@weapp://wechat-game-runtime/wxcommlib/WAGameVConsole.html:1:43397
insertSync@weapp://wechat-game-runtime/wxcommlib/WAGameVConsole.html:7:11640
@weapp://wechat-game-runtime/wxcommlib/WAGameV