When I try to run my server in a multimodule proje...
# getting-startedy
Yousef
07/21/2023, 4:51 PMWhen I try to run my server in a multimodule project it always says cannot find main class. What am I doing wrong? I have the module included in settings.gradle
Yousef
07/21/2023, 5:13 PMPlease anyone i've been at this all day 😔
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Landry Norris
07/21/2023, 5:17 PMHow did you declare the main function?
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Yousef
07/21/2023, 5:18 PMit's just a newly generated project
Copy code
fun main() {
embeddedServer(Netty, port = 8080, host = "0.0.0.0", module = Application::module)
.start(wait = true)
}l
Landry Norris
07/21/2023, 5:19 PMIf you click the play button next to main (assuming intellij idea), it will create a run configuration.
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Yousef
07/21/2023, 5:20 PMyes usually but it isn't an option in this project for some reason
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Landry Norris
07/21/2023, 5:20 PMAlso, what does your build.gradle look like? That should be where you specify the main class.
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Yousef
07/21/2023, 5:20 PM Copy code
application {
mainClass.set("yousef.code.ApplicationKt")
val isDevelopment: Boolean = project.ext.has("development")
applicationDefaultJvmArgs = listOf("-Dio.ktor.development=$isDevelopment")
}l
Landry Norris
07/21/2023, 5:21 PMKeep in mind that if main is a file-scoped function (not in a class), the class name is <package.filename>Kt. Looks like you have that.
Landry Norris
07/21/2023, 5:22 PMIs the folder structure 'src/main/kotlin/yousef/code/Application.kt'?
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Yousef
07/21/2023, 5:22 PMyes
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Landry Norris
07/21/2023, 5:22 PMIs this project open source/on github?
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Yousef
07/21/2023, 5:23 PMit's newly created but I can push it
Yousef
07/21/2023, 5:26 PMl
Landry Norris
07/21/2023, 5:31 PMI don't see anything that immediately stands out as a potential issue. I'll take a closer look after work.
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Yousef
07/21/2023, 5:32 PMI appreciate that a lot. Thank you so much!
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Landry Norris
07/21/2023, 5:43 PMLooks like the samples set up the gradle a little differently. Have you tried a branch setting it up like they do? https://github.com/ktorio/ktor-samples/blob/main/fullstack-mpp/build.gradle
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Yousef
07/21/2023, 5:45 PMthe issue that doesn't work with the frontend I'm using, kobweb, but that was my first approach. It has it's own jvmmain and if you add another it takes over it and generates files for it as well. So i went with multi module instead. Which also isn't working except i dont know why lol
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Landry Norris
07/21/2023, 6:36 PMYou can set the base name for a source set. For example, you can do 'jvm("backend")' to get a 'backendMain' and 'backendTest'.
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Yousef
07/21/2023, 6:37 PMyes even with that it still did it. I told the dev about the bug
Yousef
07/21/2023, 6:55 PMI fixed it. Had to remove the plugins from the root build.gradle and add kotlin("jvm") plugin to the backend build.grade K
Yousef
07/21/2023, 6:55 PMThank you again