‼️ NOTICE: aws-cdk CLI - "Cloud assembly schema version mismatch: Maximum schema version supported is 10.0.0, but found 11.0.0"

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Status: IN-PROGRESS

This is a bug in npm version 7 only (npm versions 6 and below work fine). See here for details: https://github.com/npm/cli/issues/3196

Overview:

After upgrading the CDK CLI package (aws-cdk) with npm version 7, running any CDK command in your CDK application fails with the error Cloud assembly schema version mismatch: Maximum schema version supported is 10.0.0, but found 11.0.0.

Complete Error Message

$ npx cdk ls
This CDK CLI is not compatible with the CDK library used by your application. Please upgrade the CLI to the latest version.
(Cloud assembly schema version mismatch: Maximum schema version supported is 10.0.0, but found 11.0.0)

Workaround:

Please remove the installed aws-cdk package, and then install it again:

$ npm uninstall -g aws-cdk
$ npm install -g aws-cdk

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Original opening post

This CDK CLI is not compatible with the CDK library used by your application. Please upgrade the CLI to the latest version. (Cloud assembly schema version mismatch: Maximum schema version supported is 10.0.0, but found 11.0.0)

aws-cdk version 1.103.0 and 1.104.0 do not work. aws-cdk version 1.102.0 works fine

Reproduction Steps

Install aws-cdk 1.103.0 (or 1.104.0) pip install -r requirements.txt

cdk ls

What did you expect to happen?

List of stacks displayed

What actually happened?

"This CDK CLI is not compatible with the CDK library used by your application. Please upgrade the CLI to the latest version. (Cloud assembly schema version mismatch: Maximum schema version supported is 10.0.0, but found 11.0.0) "

Environment

• CDK CLI Version : 1.104.0
• Framework Version: 1.103.0 & 1.104.0
• Node.js Version: v16.1.0
• **OS : Mac Big Sur
• Language (Version): Python 3.8.7

Other

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This is 🐛 Bug Report

[gshpychka]

This is because schema version 16.0.0 was introduced in CDK 1.139. CDKv2 does not support it yet as of 2.5.0.

Solutions:

1. Use the 1.139 version of the CDK CLI instead of the latest v2.
2. Downgrade your construct modules to 1.138
3. Switch your construct modules to CDKv2.

[rix0rrr]

Best I can recommend at this moment is trying:

$ npm uninstall -g aws-cdk
$ npm install -g aws-cdk

And seeing if that fixes it.

NPM left your install in an inconsistent state, and without being able to reproduce it it’s hard to say why.