wx.navigateToMiniProgram({
    appId: param.appId,
    path: param.path,
    extraData: param.data,
    envVersion: 'release',
    success(res) {
        console.log(res)
    },
    fail(res) {
        console.log(res)
    }
})

执行后

navigateToMiniProgram:fail invalid appid

想问一下，两个小程序是要关联才能打开？