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This wiki page is missing a dependency declaration for the common api.

I don't know if this happens with other people but, without it trying to build my mod says that it cannot find mezz.jei.api.IModPlugin.

compileOnly(fg.deobf("mezz.jei:jei-${mc_version}-common-api:${jei_version}"))

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Thanks for the report!
The maven pom for the forge and fabric jars specifies that they depend on common-api, and the tools I tested will pull it in automatically without needing to specify it. What are you using to execute your build.gradle, is it in your IDE or on the command line? If possible, please include some output from it so that I can see what it is trying to do and what fails.

I currently do not have access to my PC right now, so I will have to get output info later.

I'm using vscode with the redhat Java server and the gradle extensions.

I was using the gradle extension to execute "runClient" in debug mode.
I don't know if the same error occurs when lunched with redhat. (The redhat extension will execute a command line string.)