CDK Redis 缓存 cdk.Resource.isResource 不是函数

如何解决CDK Redis 缓存 cdk.Resource.isResource 不是函数

我有以下用于 redis 集群的 CDK 配置（在 python 中） - 它是根据在线找到的示例构建的。

我对所有软件包都使用最新版本 (1.91.0)

  redis_subnet_group = elasticache.CfnsubnetGroup(
            self,"RedissubnetGroup",description='Redis subnet Group',subnet_ids=[subnet.subnet_id for subnet in vpc.private_subnets]
        )

        redis_security_group = ec2.SecurityGroup(self,"RedisSecurityGroup",vpc=vpc)

        redis = elasticache.CfnCacheCluster(
            self,"RedisCluster",engine='redis',cache_node_type="cache.t2.micro",num_cache_nodes=1,cluster_name="RedisCluster",cache_subnet_group_name=redis_subnet_group.ref,vpc_security_group_ids=[redis_security_group.security_group_id]
        )

当我运行 synth 或 diff 时出现以下错误

jsii.errors.JavaScriptError: 
  TypeError: cdk.Resource.isResource is not a function
      at new CfnDBInstance (/private/var/folders/95/pb_k79ms1rnflkw2p8jl5mkm0000gn/T/jsii-kernel-bEHk2i/node_modules/@aws-cdk/aws-rds/lib/rds.generated.js:804:45)
      at new DatabaseInstance (/private/var/folders/95/pb_k79ms1rnflkw2p8jl5mkm0000gn/T/jsii-kernel-bEHk2i/node_modules/@aws-cdk/aws-rds/lib/instance.js:356:26)
      at /private/var/folders/95/pb_k79ms1rnflkw2p8jl5mkm0000gn/T/tmpq6sjgwjd/lib/program.js:2720:58
      at Kernel._wrapSandBoxCode (/private/var/folders/95/pb_k79ms1rnflkw2p8jl5mkm0000gn/T/tmpq6sjgwjd/lib/program.js:3148:24)
      at Kernel._create (/private/var/folders/95/pb_k79ms1rnflkw2p8jl5mkm0000gn/T/tmpq6sjgwjd/lib/program.js:2720:34)
      at Kernel.create (/private/var/folders/95/pb_k79ms1rnflkw2p8jl5mkm0000gn/T/tmpq6sjgwjd/lib/program.js:2461:29)
      at KernelHost.processRequest (/private/var/folders/95/pb_k79ms1rnflkw2p8jl5mkm0000gn/T/tmpq6sjgwjd/lib/program.js:9457:36)
      at KernelHost.run (/private/var/folders/95/pb_k79ms1rnflkw2p8jl5mkm0000gn/T/tmpq6sjgwjd/lib/program.js:9420:22)
      at Immediate._onImmediate (/private/var/folders/95/pb_k79ms1rnflkw2p8jl5mkm0000gn/T/tmpq6sjgwjd/lib/program.js:9421:46)
      at processImmediate (internal/timers.js:461:21)

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "app.py",line 23,in <module>
    dev = Envstack(
  File "/Users/name/.pyenv/versions/3.8.6/lib/python3.8/site-packages/jsii/_runtime.py",line 83,in __call__
    inst = super().__call__(*args,**kwargs)
  File "/Users/name/PycharmProjects/infa/env/__init__.py",line 27,in __init__
    saleor = SaleorBackend(
  File "/Users/name/.pyenv/versions/3.8.6/lib/python3.8/site-packages/jsii/_runtime.py",**kwargs)
  File "/Users/name/PycharmProjects/infa/env/saleor_backend.py",line 50,in __init__
    database = rds.DatabaseInstance(
  File "/Users/name/.pyenv/versions/3.8.6/lib/python3.8/site-packages/jsii/_runtime.py",**kwargs)
  File "/Users/name/.pyenv/versions/3.8.6/lib/python3.8/site-packages/aws_cdk/aws_rds/__init__.py",line 24573,in __init__
    jsii.create(DatabaseInstance,self,[scope,id,props])
  File "/Users/name/.pyenv/versions/3.8.6/lib/python3.8/site-packages/jsii/_kernel/__init__.py",line 265,in create
    response = self.provider.create(
  File "/Users/name/.pyenv/versions/3.8.6/lib/python3.8/site-packages/jsii/_kernel/providers/process.py",line 348,in create
    return self._process.send(request,CreateResponse)
  File "/Users/name/.pyenv/versions/3.8.6/lib/python3.8/site-packages/jsii/_kernel/providers/process.py",line 330,in send
    raise JSIIError(resp.error) from JavaScriptError(resp.stack)
jsii.errors.JSIIError: cdk.Resource.isResource is not a function

奇怪的是，它似乎引用了 RDS 实例（它已经存在数月了 - 只是因为我添加了 redis 集群（如果我删除了 rds 实例，那么它正确地引用了堆栈中的 redis 集群）