Cannot Tag any Cfn objects in .NET: Could not infer JSII type for .NET type 'JArray'

[kuhnboy]

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• I'm submitting a ...

  • 🪲 bug report
  • 🚀 feature request
  • 📚 construct library gap
  • ☎️ security issue or vulnerability => Please see policy
  • ❓ support request => Please see note at the top of this template.

• What is the current behavior?
  Any command to tag a CfnXXX object results in an exception when running cdk synth.

• What is the expected behavior (or behavior of feature suggested)?

• Create a new CDK project with 0.38.0-devpreview
• Modify HelloStack to just do:

var vpc = new CfnVPC(this, "vpc", new CfnVPCProps { CidrBlock = "10.180.0.0/16", EnableDnsHostnames = true, EnableDnsSupport = true });
vpc.Node.ApplyAspect(new Tag("Name", "fooey", new TagProps()));

• Run cdk synth
• Exception is thrown and error is outputted

• What is the motivation / use case for changing the behavior or adding this feature?

• Please tell us about your environment:

  • CDK CLI Version: 1.4.0
  • Module Version: 1.4.0
  • OS: Windows 10
  • Language: C#

• Other information (e.g. detailed explanation, stacktraces, related issues, suggestions how to fix, links for us to have context, eg. associated pull-request, stackoverflow, gitter, etc)

Amazon.JSII.Runtime.JsiiException: 'Amazon.JSII.Runtime.JsiiException: Resolution error: System.ArgumentException: Could not infer JSII type for .NET type 'JArray'
Parameter name: type
   at Amazon.JSII.Runtime.Services.Converters.FrameworkToJsiiConverter.InferType(IReferenceMap referenceMap, Type type)
   at Amazon.JSII.Runtime.Services.Converters.ValueConverter.ConvertAny(IReferenceMap referenceMap, Object value)
   at Amazon.JSII.Runtime.Services.Converters.ValueConverter.TryConvertPrimitive(IReferenceMap referenceMap, Object value, Boolean isOptional, PrimitiveType primitiveType, Object& result)
   at Amazon.JSII.Runtime.Services.Converters.ValueConverter.TryConvert(IOptionalValue optionalValue, IReferenceMap referenceMap, Object value, Object& result)
   at Amazon.JSII.Runtime.Services.Converters.FrameworkToJsiiConverter.TryConvertMap(IReferenceMap referenceMap, TypeReference elementType, Object value, Object& result)
   at Amazon.JSII.Runtime.Services.Converters.ValueConverter.TryConvert(IOptionalValue optionalValue, IReferenceMap referenceMap, Object value, Object& result)
   at Amazon.JSII.Runtime.Deputy.DeputyBase.<>c__DisplayClass20_0.<ConvertArguments>b__0(Parameter parameter, Object frameworkArgument)
   at System.Linq.Enumerable.ZipIterator[TFirst,TSecond,TResult](IEnumerable`1 first, IEnumerable`1 second, Func`3 resultSelector)+MoveNext()
   at System.Collections.Generic.LargeArrayBuilder`1.AddRange(IEnumerable`1 items)
   at System.Collections.Generic.EnumerableHelpers.ToArray[T](IEnumerable`1 source)
   at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)
   at Amazon.JSII.Runtime.Deputy.DeputyBase.<InvokeMethodCore>g__GetResult|18_0[T](<>c__DisplayClass18_0`1& )
   at Amazon.JSII.Runtime.Deputy.DeputyBase.InvokeMethodCore[T](JsiiMethodAttribute methodAttribute, Object[] arguments, Func`3 beginFunc, Func`3 invokeFunc)
   at Amazon.JSII.Runtime.Deputy.DeputyBase.InvokeInstanceMethod[T](Object[] arguments, String methodName).
Object creation stack:
  at new Intrinsic (C:\Users\rkuhn\AppData\Local\Temp\jsii-kernel-CY50I9\node_modules\@aws-cdk\core\lib\private\intrinsic.js:20:44)
  at new PostResolveToken (C:\Users\rkuhn\AppData\Local\Temp\jsii-kernel-CY50I9\node_modules\@aws-cdk\core\lib\util.js:72:9)
  at CfnVPC._toCloudFormation (C:\Users\rkuhn\AppData\Local\Temp\jsii-kernel-CY50I9\node_modules\@aws-cdk\core\lib\cfn-resource.js:167:39)
  at node.addReference.resolve_1.findTokens (C:\Users\rkuhn\AppData\Local\Temp\jsii-kernel-CY50I9\node_modules\@aws-cdk\core\lib\cfn-element.js:84:77)
  at Object.findTokens (C:\Users\rkuhn\AppData\Local\Temp\jsii-kernel-CY50I9\node_modules\@aws-cdk\core\lib\private\resolve.js:125:13)
  at CfnVPC.prepare (C:\Users\rkuhn\AppData\Local\Temp\jsii-kernel-CY50I9\node_modules\@aws-cdk\core\lib\cfn-element.js:84:49)
  at _wrapSandboxCode (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6493:51)
  at Kernel._wrapSandboxCode (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:7126:20)
  at ret._ensureSync (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6493:25)
  at Kernel._ensureSync (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:7097:20)
  at Kernel.invoke (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6492:26)
  at KernelHost.processRequest (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6186:28)
  at completeCallback (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6159:25)
  at KernelHost.callbackHandler (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6140:16)
  at KernelHost.kernel.jsii_kernel_1.Kernel.cb [as callbackHandler] (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6124:59)
  at CfnVPC.value (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6843:41)
  at Function.prepare (C:\Users\rkuhn\AppData\Local\Temp\jsii-kernel-CY50I9\node_modules\@aws-cdk\core\lib\construct.js:89:27)
  at Function.synth (C:\Users\rkuhn\AppData\Local\Temp\jsii-kernel-CY50I9\node_modules\@aws-cdk\core\lib\construct.js:52:14)
  at App.synth (C:\Users\rkuhn\AppData\Local\Temp\jsii-kernel-CY50I9\node_modules\@aws-cdk\core\lib\app.js:67:52)
  at _wrapSandboxCode (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6493:51)
  at Kernel._wrapSandboxCode (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:7126:20)
  at ret._ensureSync (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6493:25)
  at Kernel._ensureSync (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:7097:20)
  at Kernel.invoke (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6492:26)
  at KernelHost.processRequest (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6186:28)
  at KernelHost.run (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6132:14)
  at processRequest (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6132:45)
  at KernelHost.processRequest (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6228:16)
  at KernelHost.run (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6132:14)
  at processRequest (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6132:45)
  at KernelHost.processRequest (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6228:16)
  at KernelHost.run (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6132:14)
  at processRequest (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6132:45)
  at KernelHost.processRequest (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6228:16)
  at KernelHost.run (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6132:14)
  at processRequest (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6132:45)
  at KernelHost.processRequest (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6228:16)
  at KernelHost.run (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6132:14)
  at processRequest (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6132:45)
  at KernelHost.processRequest (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6228:16)
  at KernelHost.run (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6132:14)
  at processRequest (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6132:45)
  at promise.then.val (C:\Users\rkuhn\AppData\Local\Temp\w1ejir4g.h30\jsii-runtime.js:6213:21)
  at <anonymous>
   at Amazon.JSII.Runtime.Services.Client.TryDeserialize[TResponse](String responseJson)
   at Amazon.JSII.Runtime.Services.Client.ReceiveResponse[TResponse]()
   at Amazon.JSII.Runtime.Services.Client.TryDeserialize[TResponse](String responseJson)
   at Amazon.JSII.Runtime.Services.Client.ReceiveResponse[TResponse]()
   at Amazon.JSII.Runtime.Deputy.DeputyBase.<InvokeMethodCore>g__GetResult|18_0[T](<>c__DisplayClass18_0`1& )
   at Amazon.JSII.Runtime.Deputy.DeputyBase.InvokeMethodCore[T](JsiiMethodAttribute methodAttribute, Object[] arguments, Func`3 beginFunc, Func`3 invokeFunc)
   at Amazon.JSII.Runtime.Deputy.DeputyBase.InvokeInstanceMethod[T](Object[] arguments, String methodName)
   at Amazon.CDK.CfnElement.Prepare()'

EDIT - (NGL321): Updated to reflect bug exists in current builds

[kuhnboy]

Occurred when testing the fix for: #3093

[kuhnboy]

This is a big blocker when all of our resources in AWS have one or more tags.

[kknd4eva]

Just wondering if anyone has a workaround for this issue? Apart from downgrading the version? It seems no matter where/when I cast a list of (for instance) security groups to a string array, it breaks during synth.

[kuhnboy]

Currently, I've had to downgrade to 0.28.0

[NGL321]

@McDoit this issue looks like the problem you were encountering.

#3672 Recent duplicate

[McDoit]

I guess it might be the same for the SecurityGroupIds case, the stacktrace looks the same, so i hope this will fix that one as well.
But om glad that 0.28 is as stable as it is, even if it is missing some features

[vachumakov]

I have same issue with CfnTargetGroup and CfnListenerRule. I believe any CfnXXX object which has property with type array cause this exception