When I run the Cursive repl in IntelliJ, the following warning is displayed:
WARNING: clojure.lang.Repl is deprecated.
Instead, use clojure.main like this:
java -cp clojure.jar clojure.main -i init.clj -r args...
Does anyone know how to resolve this issue within IntelliJ?
To get to this point I:
Followed the Cursive instructions for setup.
Double-checked that lein repl works from my terminal.
Double-checked that the Cursive repl is running on the correct namespace.
Researched and found many workarounds relating to a similar issue in the actual Clojure Framework.
For the time being, in order to execute (-main) from the repl I am first running (in-ns 'fileName) to enter the correct namespace and then executing the -main function. I have found this preferable to typing out the full (fileName/-main) every time, but this is still not an ideal workaround.
Related
I have installed IntelliJ IDEA on my mac and wrote the simplest Kotlin program
fun main(args : Array<String>){
println("Hello")
}
I can run it from the IDE environment. (It prints Hello of course)
My question: How can you run this from the console?
What I have done:
I tried to call
java simplekt.class
but I got
Error: could not find or load main class simplekt.class
I tried java simplekt but then I got an exception in thread main java.lang.NoClassDefFoundError
I tried to use kotlin or kotlinc but the command was not found. (where is the compiler installed?)
In this resource they use kotlinc and they produce a jar file but IDEA only output a class file.
Not really sure how to proceed from here.
When you run your application from the IDE, in the Run window the very first line is the command that the IDE executes to start your program. In my case it's something like:
/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/bin/java -Dfile.encoding=UTF-8 <a lot more omitted>
You can execute the same command in your terminal and that will execute the application. Reading that line will also (indirectly) tell you where the kotlinc command is installed, and in my case – using MacOS – it's at /Applications/IntelliJ\ IDEA.app/Contents/plugins/Kotlin/kotlinc/bin/kotlinc
However, you can always decide to entirely stop using the IDE and compile/run your program from the command line by following instructions here: https://kotlinlang.org/docs/tutorials/command-line.html
The above answer by #user2340612 is mostly right, but maybe due to software changing or some differences in what i did, it did not work for me. Following did:
to avoid repetition, i'll be using the short name: $(ideac) = "IntelliJ IDEA Community Edition 2022.2" in place of the full name
the path to the kotlinc is this one: $(ideac)\plugins\Kotlin\kotlinc\bin
much similar to the one told above, but slightly different
i have verified it to work in the command given in the command-line doc linked above or compiler-reference too: kotlinc hello.kt -include-runtime -d hello.jar
running the resultant .jar file via java -jar ./hello.jar shows the expected output
there's no kotlin-native in that folder, so, couldn't verify this native-command-line-compiler kotlin doc
Backstory/What did not work
the command under the run tab in $(ideac) no longer shows the kotlinc path
I had created the Kotlin "project" by using "new project" (intelliJ) or by "Kotlin multiplatform > JVM" (gradle)
The run command for either of these did not contain any kotlinc in them
I tried creating a new > "scratch" file; and it showed this: $(ideac)\plugins\Kotlin\bin\windows\LLDBFrontend.exe but i tried using that on CLI and it did not work either
When I try to start my CLion IDE (or another JetBrains IDE, like PyCharm, IntelliJ IDEA, PHP Storm etc), it fails, and I get the following message on the console:
IDE has not been initialized yet
(after the usual JVM warning I always get before and didn't prevent the IDE from starting up.)
Why is this happening? What can I do about it?
Notes:
I have a valid license.
May be related to this (resolved) issue for IntelliJ Idea.
Another instance of the IDE may be running
While you might not see it for some reason, there is another instance of your IDE already running (probably for your own user). The error message is somewhat misleading.
Let's assume you're running CLion for example. The executable's name is clion. Look for it with the ps command: ps aux | grep -i clion, or with pgrep: pgrep clion. Then terminate it (e.g. using kill with the process ID), and re-run.
Caveat: There may not be the only scenario in which you get the same error message.
I have installed IntelliJ IDEA on my mac and wrote the simplest Kotlin program
fun main(args : Array<String>){
println("Hello")
}
I can run it from the IDE environment. (It prints Hello of course)
My question: How can you run this from the console?
What I have done:
I tried to call
java simplekt.class
but I got
Error: could not find or load main class simplekt.class
I tried java simplekt but then I got an exception in thread main java.lang.NoClassDefFoundError
I tried to use kotlin or kotlinc but the command was not found. (where is the compiler installed?)
In this resource they use kotlinc and they produce a jar file but IDEA only output a class file.
Not really sure how to proceed from here.
When you run your application from the IDE, in the Run window the very first line is the command that the IDE executes to start your program. In my case it's something like:
/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/bin/java -Dfile.encoding=UTF-8 <a lot more omitted>
You can execute the same command in your terminal and that will execute the application. Reading that line will also (indirectly) tell you where the kotlinc command is installed, and in my case – using MacOS – it's at /Applications/IntelliJ\ IDEA.app/Contents/plugins/Kotlin/kotlinc/bin/kotlinc
However, you can always decide to entirely stop using the IDE and compile/run your program from the command line by following instructions here: https://kotlinlang.org/docs/tutorials/command-line.html
The above answer by #user2340612 is mostly right, but maybe due to software changing or some differences in what i did, it did not work for me. Following did:
to avoid repetition, i'll be using the short name: $(ideac) = "IntelliJ IDEA Community Edition 2022.2" in place of the full name
the path to the kotlinc is this one: $(ideac)\plugins\Kotlin\kotlinc\bin
much similar to the one told above, but slightly different
i have verified it to work in the command given in the command-line doc linked above or compiler-reference too: kotlinc hello.kt -include-runtime -d hello.jar
running the resultant .jar file via java -jar ./hello.jar shows the expected output
there's no kotlin-native in that folder, so, couldn't verify this native-command-line-compiler kotlin doc
Backstory/What did not work
the command under the run tab in $(ideac) no longer shows the kotlinc path
I had created the Kotlin "project" by using "new project" (intelliJ) or by "Kotlin multiplatform > JVM" (gradle)
The run command for either of these did not contain any kotlinc in them
I tried creating a new > "scratch" file; and it showed this: $(ideac)\plugins\Kotlin\bin\windows\LLDBFrontend.exe but i tried using that on CLI and it did not work either
I created test.clj
I have this code in it:
(ns clojure.examples.hello
(:gen-class))
(defn -main
[greetee]
(println (str "Hello " greetee "!")))
result:
/home/bin/java /tmp/testclj/src/test.clj
(where are my printings? shouldn't they appear here? nothing is printed here)
Process finished with exit code 0
but i get nothing printed out when i run it shouldn't it be printed?
How do you run your code?
First, you need to compile it:
(compile 'clojure.examples.hello)
And then:
java -cp ./classes:clojure.jar clojure.examples.hello Jas
Of course, path depends on your project structure.
I would say, it is much more easier if you installed IntelliJ Leiningen plugin and trying to run your code with Leiningen.
With Leiningen, you can do:
; run the -main function of a namespace
lein run -m my.namespace
And it is always a good idea, not to rely on IDEs to run and build your projects.
Old question I know, but in case someone else runs into this: the default configuration that IntelliJ creates did not print anything on my computer either. Instead, do the following:
go to Edit Configuration
change Run Clojure script to Run -main from Clojure namespace and fill in your namespace (for example, hello.world)
Run with Leiningen should have been activated automatically
If you run this config instead of the default (and have Leiningen installed, naturally), you should get logs printed to console.
I tried to start Eclipse, it just shows loading eclipse and then stops/crashes after a while, I haven't changed anything from before.
even I tried to replace it with other version but some thing happens, when I open it with terminal I get this error:
-- ERROR: RebelPlugin.getDefault() retured null!! Likely cause: plugin not started properly!
logout
[Process completed]
It seems like the RebelPlugin is causing issues. The simplest option is to install a new Eclipse and run that instead. You can reuse your previous workspace and the code will be untouched, so you will just loose some time.
There are other alternatives to try, but they may be a bit more advanced. From commandline you can try to uninstall the RebelPlugin and see if that makes a difference, and then reinstalling.
java -jar plugins/org.eclipse.equinox.launcher_<version>.jar
-application org.eclipse.update.core.standaloneUpdate
-command uninstall
-featureId <feature_id of rebelplugin>
-version <version>
See the Eclipse manual for more information