5 comments

Downloading these and adding to the classpath helped for me.

extensions-7.0.3.jar
openapi-7.0.3.jar

See https://jar-download.com/?search_box=com.intellij

 

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This additional step is wrong. Please follow the exact instructions given on above page.

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Removed them and using the first answer in
https://stackoverflow.com/questions/64205627/package-org-jetbrains-annotations-does-not-exist

changed the product structure to the attached screenshots - rebuild project works without any errors.

Project - select SDK
SDKs - add app.jar from PhpStorm
Libraries - add intellij.openapi and jetbrains.annotations

 

 

 

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Please do not trust answers from SO that do not come from JetBrains. It is plain wrong.

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