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AppSourceCop Error AS0003

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The previous version of the extension could not be found.

Description

The previous version of the extension, used as a baseline for detecting breaking changes, could not be found in the package cache folder.

Remarks

This rule validates that the version of the extension specified as a baseline for detecting breaking changes can be found in the baseline package cache folder.

Note

The rule AS0091 verifies that the dependencies of the baseline can be found in the baseline package cache folder.

Setting up AppSourceCop to detect breaking changes

In order to set up AppSourceCop to detect breaking changes, the version of the extension used as a baseline must be specified in the AppSourceCop.json file using the version property. The version specified is the exact version against which the breaking changes are validated. It is also possible to specify the name and the publisher of the extension in the AppSourceCop.json file. The baselinePackageCachePath allows you to specify the folder that will act as a cache for the baseline package and its dependencies for the AppSourceCop analyzer.

If the baselinePackageCachePath is not specified, the baseline and its dependencies are expected to be found in the dependency package cache path. The al.packageCachePath setting allows you to specify the path to a folder that will act as the cache for the symbol files used by your project. This is sufficient for most scenarios, but baselinePackageCachePath provides a higher accuracy as it ensures that the previous version of the extension will be loaded using the right version of its dependencies.

For example:

{
    "name": "ExtensionName",
    "publisher": "ExtensionPublisher",
    "version": "1.1.0.0",
    "baselinePackageCachePath": "./.appSourceCopPackages"
}

Note

If you are using a workspace with multiple projects in Visual Studio Code, you must set the baselinePackageCachePath property in the AppSourceCop.json file.

How to fix this diagnostic?

If you do not want to detect breaking changes in your extension, remove the property version in the AppSourceCop.json file.

If you want to detect breaking changes, verify that the version specified in the AppSourceCop.json file is correct and that the extension can be found in the baseline package cache.

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