4.50.0 error: Cannot read property 'length' of undefined

[hisham]

Before opening, please confirm:

• I have installed the latest version of the Amplify CLI (see above), and confirmed that the issue still persists.
• I have searched for duplicate or closed issues.
• I have read the guide for submitting bug reports.
• I have done my best to include a minimal, self-contained set of instructions for consistently reproducing the issue.

How did you install the Amplify CLI?

AWS Amplify Build

If applicable, what version of Node.js are you using?

Not sure - whatever AWS Amplify uses

Amplify CLI Version

4.50.0

What operating system are you using?

Amazon Linux I assume

Amplify Categories

api

Amplify Commands

push

Describe the bug

Just did a very simple push that triggered CI in AWS Amplify. Got the following error. This build was working fine before 4.50.0. Our amplify build is set to push with latest amplify always.

2021-04-27T17:24:54.129Z [WARNING]: ✖ An error occurred when pushing the resources to the cloud
2021-04-27T17:24:54.130Z [WARNING]: ✖ There was an error initializing your environment.
2021-04-27T17:24:54.133Z [INFO]: �[0mTypeError: Cannot read property 'length' of undefined�[0m
                                 �[0m    at /usr/lib/node_modules/@aws-amplify/cli/node_modules/amplify-provider-awscloudformation/src/utils/consolidate-apigw-policies.ts:121:99�[0m
                                 �[0m    at Array.forEach (<anonymous>)�[0m
                                 �[0m    at ApiGatewayAuthStack.createPoliciesFromResources (/usr/lib/node_modules/@aws-amplify/cli/node_modules/amplify-provider-awscloudformation/src/utils/consolidate-apigw-policies.ts:120:13)�[0m
                                 �[0m    at /usr/lib/node_modules/@aws-amplify/cli/node_modules/amplify-provider-awscloudformation/src/utils/consolidate-apigw-policies.ts:94:16�[0m
                                 �[0m    at Array.forEach (<anonymous>)�[0m
                                 �[0m    at /usr/lib/node_modules/@aws-amplify/cli/node_modules/amplify-provider-awscloudformation/src/utils/consolidate-apigw-policies.ts:84:31�[0m
                                 �[0m    at Array.forEach (<anonymous>)�[0m
                                 �[0m    at new ApiGatewayAuthStack (/usr/lib/node_modules/@aws-amplify/cli/node_modules/amplify-provider-awscloudformation/src/utils/consolidate-apigw-policies.ts:62:23)�[0m
                                 �[0m    at createApiGatewayAuthResources (/usr/lib/node_modules/@aws-amplify/cli/node_modules/amplify-provider-awscloudformation/src/utils/consolidate-apigw-policies.ts:205:17)�[0m
                                 �[0m    at Object.consolidateApiGatewayPolicies (/usr/lib/node_modules/@aws-amplify/cli/node_modules/amplify-provider-awscloudformation/src/utils/consolidate-apigw-policies.ts:201:10)�[0m
                                 �[0m    at Object.createEnvLevelConstructs (/usr/lib/node_modules/@aws-amplify/cli/node_modules/amplify-provider-awscloudformation/src/utils/env-level-constructs.ts:22:5)�[0m
                                 �[0m    at runMicrotasks (<anonymous>)�[0m
                                 �[0m    at processTicksAndRejections (internal/process/task_queues.js:93:5)�[0m
                                 �[0m    at Object.run (/usr/lib/node_modules/@aws-amplify/cli/node_modules/amplify-provider-awscloudformation/src/push-resources.ts:97:5)�[0m
2021-04-27T17:24:54.152Z [ERROR]: !!! Build failed
2021-04-27T17:24:54.152Z [ERROR]: !!! Non-Zero Exit Code detected

Expected behavior

Should just work

Reproduction steps

1. I did a very simple frontend push and AWS Amplify started deploying backend and frontend. I made no backend changes. This deployment succeeded 2 hours ago before 4.50.0 was released.

GraphQL schema(s)

# Put schemas below this line

Log output

# Put your logs below this line

Additional information

I have not tested yet locally or with < 4.50.0. Will do now.

[hisham]

Setting AWS Amplify to use 4.49.0 resolved the issue and backend push went through fine.

Let me know if you need any additional info or want me to try to do a backend push on my local machine with 4.50.0. Until then I'll leave this in your hands :).

[cjihrig]

If you could share the contents of amplify/backend/api/${YOUR_REST_API}/api-params.json (with any sensitive information redacted), that would be great.

[hisham]

Sure I just emailed it to [email protected]

[cjihrig]

Thank you for reporting this. We are working on a fix. In the mean time, if you run amplify api update to regenerate the api-params.json file, that should fix the issue on v4.50.0.

[jacobhobson]

@cjihrig, just a heads up, running an amplify api update did not fix the issue. I'll have to revert to 4.49.0 for the time being, but I'll take whatever workarounds you've got!

[cjihrig]

@jacobhobson is your api-params.json file missing policyResourceName fields?

[jacobhobson]

@cjihrig, no, that field is not missing. Each path element object has the policyResourceName property.

[cjihrig]

OK, and you are seeing the same error as the OP, right? If so, can you share your api-params.json file either here or via an email to [email protected].

[blairtaylor]

We are getting the same error. It is occurring on CLI 4.50.0.

Forcing the build CLI to 4.49.0 we were able to work around this issue.

Starting phase: build

Executing command: amplifyPush --simple

2021-04-27T20:55:48.200Z [INFO]: [0mAmplify AppID found: d2y376scxw2k21. Amplify App name is: xxxxx-staging-ci[0m
2021-04-27T20:55:48.248Z [INFO]: [0mBackend environment staging found in Amplify Console app: xxxxx-staging-ci[0m
2021-04-27T20:55:50.277Z [WARNING]: - Fetching updates to backend environment: staging from the cloud.
2021-04-27T20:55:52.022Z [WARNING]: :heavy_check_mark: Successfully pulled backend environment staging from the cloud.
2021-04-27T20:55:52.405Z [INFO]:
2021-04-27T20:55:54.472Z [INFO]: [33mNote: It is recommended to run this command from the root of your app directory[39m
2021-04-27T20:56:01.063Z [WARNING]: - Initializing your environment: staging
2021-04-27T20:56:25.654Z [WARNING]: :heavy_check_mark: Initialized provider successfully.
2021-04-27T20:56:26.261Z [WARNING]: :heavy_multiplication_x: An error occurred when pushing the resources to the cloud
2021-04-27T20:56:26.264Z [WARNING]: :heavy_multiplication_x: There was an error initializing your environment.
2021-04-27T20:56:26.267Z [INFO]: [0mTypeError: Cannot read property 'length' of undefined[0m
[0m at /root/.nvm/versions/node/v12.21.0/lib/node_modules/@aws-amplify/cli/node_modules/amplify-provider-awscloudformation/src/utils/consolidate-apigw-policies.ts:121:99[0m
[0m at Array.forEach ()[0m
[0m at ApiGatewayAuthStack.createPoliciesFromResources (/root/.nvm/versions/node/v12.21.0/lib/node_modules/@aws-amplify/cli/node_modules/amplify-provider-awscloudformation/src/utils/consolidate-apigw-policies.ts:120:13)[0m

[cjihrig]

@blairtaylor can you confirm if any of your REST API paths are missing a policyResourceName property in api-params.json. If so, please try running amplify api update and then verify the policyResourceNames again.

[gakinson]

+1 , we are experiencing the same issue

[sferencik]

I've emailed our api-params.json too. Good luck!

[wbroek]

Got the same error when running with amplify version 4.50.0: TypeError: Cannot read property 'length' of undefined

Then ran amplify api updates and did update path choice and choose the values that were already there. After that I saw it changes the file api-params.json ( "policyResourceName": "/..." was added) but also the file userapi-cloudformation-template.json was changed ( "authRoleName" and "unauthRoleName" where removed).

When I push this with amplify push I get the error:

UPDATE_FAILED               api                         AWS::CloudFormation::Stack Wed Apr 28 2021 16:41:38 GMT+0200 (Central European Summer Time) Parameters: [authRoleName, unauthRoleName] do not exist in the template

well, yes the where removed in userapi-cloudformation-template.json but why? (also the file APIGatewayAuthStack.json was generated)

[cjihrig]

@wbroek thank you for your input. If your API's parameters.json file still references the authRoleName and/or unauthRoleName, you can remove them. The file will likely contain just an empty object {}. From there, you can try pushing again. There is a chance you will need to use the --force flag with amplify push. I've put together a patch in #7192, which should handle all of these steps automatically in the future.

[wbroek]

@cjihrig thanks that did the trick. Removed them in the parameters.json and pushed as you mentioned. Thanks again @cjihrig

[ondrej-hegedus]

Thank you for reporting this. We are working on a fix. In the mean time, if you run amplify api update to regenerate the api-params.json file, that should fix the issue on v4.50.0.

What to do when amplify api update doesn't generate the api-params.json?
I tried doing in in versions 4.50.0 and 4.49.0

[evertson90]

Had the same issue. Using 4.49.0 fixed the problem.

[Stvad]

I see this is closed, but I'm still experiencing the issue in the backend build (it seems LATEST still resolves to 4.50.0 there, were the changes released?)

[siegerts]

👋 Hi, this issue was referenced in the v4.50.2 release!

Check out the release notes here https://github.com/aws-amplify/amplify-cli/releases/tag/v4.50.2.

[github-actions]

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