autoreload doesn't work for classnames about ktor HOT 3 CLOSED

@jiaweizhang by "project directory name" I meant the name of the directory which contains your project source code.

For instance, if you have a package called com.hello, it might be part of a project called greeting, so perhaps the project directory name is /home/user/projects/greeting, and the classpath entry might be something like /home/user/projects/greeting/target/classes or /home/user/projects/greeting/target/greeting-1.0-SNAPSHOT.jar (assuming Maven, and depending how you are executing the code).

So in such a case, you would need to use a key like "greeting", not "hello" or "com.hello". (I guess "target" might work too, but I haven't tried it.)

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Improved diagnostics in ktor itself and updated docs as suggested

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@seanf What does "project directory name" in your wiki clarification mean? Could you provide an example?

I also received this message when I tried to watch [ hello, com.hello]

No ktor.deployment.watch patterns specified: hot reload is disabled

Not sure how project directory name is related to classpath entries. Thanks

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