lets-plot example fails to load dependency (unknown resolver null)

[holgerbrandl]

When trying to load the library lets-plot as described in the repo examples, it simply fails with

Used version

(base) C:\Users\brandl>jupyter notebook
[I 11:44:39.550 NotebookApp] Writing notebook server cookie secret to C:\Users\brandl\AppData\Roaming\jupyter\runtime\notebook_cookie_secret
[I 11:44:40.257 NotebookApp] JupyterLab extension loaded from C:\Users\brandl\Anaconda3\lib\site-packages\jupyterlab
[I 11:44:40.257 NotebookApp] JupyterLab application directory is C:\Users\brandl\Anaconda3\share\jupyter\lab
[I 11:44:40.260 NotebookApp] Serving notebooks from local directory: C:\Users\brandl
[I 11:44:40.260 NotebookApp] Jupyter Notebook 6.1.6 is running at:
[I 11:44:40.260 NotebookApp] http://localhost:8888/?token=2a5ab8faec70763df31e57be46d9b7eba9926e2d6654d9de
[I 11:44:40.260 NotebookApp]  or http://127.0.0.1:8888/?token=2a5ab8faec70763df31e57be46d9b7eba9926e2d6654d9de
[I 11:44:40.260 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[C 11:44:40.356 NotebookApp]

    To access the notebook, open this file in a browser:
        file:///C:/Users/brandl/AppData/Roaming/jupyter/runtime/nbserver-55572-open.html
    Or copy and paste one of these URLs:
        http://localhost:8888/?token=2a5ab8faec70763df31e57be46d9b7eba9926e2d6654d9de
     or http://127.0.0.1:8888/?token=2a5ab8faec70763df31e57be46d9b7eba9926e2d6654d9de
[I 11:44:44.541 NotebookApp] Interrupted...
[I 11:44:44.541 NotebookApp] Shutting down 0 kernels
[I 11:44:44.541 NotebookApp] Shutting down 0 terminals

(base) C:\Users\brandl>jupyter console --kernel=kotlin
[main] INFO ikotlin - Kernel args: -classpath=C:\Users\brandl\Anaconda3\lib\site-packages\run_kotlin_kernel\jars\jupyter-lib-0.8.3.64.jar;C:\Users\brandl\Anaconda3\lib\site-packages\run_kotlin_kernel\jars\kotlin-script-runtime-1.4.30-dev-3354.jar;C:\Users\brandl\Anaconda3\lib\site-packages\run_kotlin_kernel\jars\kotlin-reflect-1.4.30-dev-3354.jar;C:\Users\brandl\Anaconda3\lib\site-packages\run_kotlin_kernel\jars\kotlin-stdlib-1.4.30-dev-3354.jar;C:\Users\brandl\Anaconda3\lib\site-packages\run_kotlin_kernel\jars\kotlin-stdlib-common-1.4.30-dev-3354.jar;C:\Users\brandl\Anaconda3\lib\site-packages\run_kotlin_kernel\jars\annotations-13.0.jar, C:\Users\brandl\AppData\Roaming\jupyter\runtime\kernel-47432.json, -home=C:\Users\brandl\Anaconda3\lib\site-packages\run_kotlin_kernel
[main] INFO ikotlin - Starting server with config: KernelConfig(ports=[54659, 54655, 54658, 54657, 54656], transport=tcp, signatureScheme=hmac-sha256, signatureKey=24941559-75ad9afb4b2ff679924898ea, pollingIntervalMillis=100, scriptClasspath=[C:\Users\brandl\Anaconda3\lib\site-packages\run_kotlin_kernel\jars\jupyter-lib-0.8.3.64.jar, C:\Users\brandl\Anaconda3\lib\site-packages\run_kotlin_kernel\jars\kotlin-script-runtime-1.4.30-dev-3354.jar, C:\Users\brandl\Anaconda3\lib\site-packages\run_kotlin_kernel\jars\kotlin-reflect-1.4.30-dev-3354.jar, C:\Users\brandl\Anaconda3\lib\site-packages\run_kotlin_kernel\jars\kotlin-stdlib-1.4.30-dev-3354.jar, C:\Users\brandl\Anaconda3\lib\site-packages\run_kotlin_kernel\jars\kotlin-stdlib-common-1.4.30-dev-3354.jar, C:\Users\brandl\Anaconda3\lib\site-packages\run_kotlin_kernel\jars\annotations-13.0.jar], homeDir=C:\Users\brandl\Anaconda3\lib\site-packages\run_kotlin_kernel, resolverConfig=ResolverConfig(repositories=[kotlin.script.experimental.dependencies.RepositoryCoordinates@4926097b, kotlin.script.experimental.dependencies.RepositoryCoordinates@762efe5d, kotlin.script.experimental.dependencies.RepositoryCoordinates@5d22bbb7], libraries=org.jetbrains.kotlin.jupyter.libraries.LocalLibraryResolver@41a4555e), libraryFactory=org.jetbrains.kotlin.jupyter.libraries.LibraryFactory@3830f1c0, embedded=false)

The log output when trying to load letsplot is

[main] DEBUG ikotlin - [iopub] snd>: msg[956dd6a5e4244a38bc0629f3aa729011] header = {"date":"2021-01-05T11:49+0100","session":"956dd6a5e4244a38bc0629f3aa729011","msg_type":"execute_input","msg_id":"4ab74808-48c7-4500-a95e-f1e347a67d42","version":"5.3","username":"username"} parentHeader = {"msg_id":"305b1ca7b3e4468a8615caa681efafa5","username":"username","session":"956dd6a5e4244a38bc0629f3aa729011","msg_type":"execute_request","version":"5.2"} metadata = {} content = {"execution_count":7,"code":"\n%use lets-plot"}                                                                                                            [main] INFO resolver - Adding repository: https://jetbrains.bintray.com/lets-plot-maven/                                                                                                                         [main] INFO resolver - Resolving org.jetbrains.lets-plot-kotlin:lets-plot-kotlin-api-kernel:1.1.0                                                                                                                [main] INFO resolver - Resolved: C:\Users\brandl\.ivy2\cache\org.jetbrains.lets-plot-kotlin\lets-plot-kotlin-api-kernel\jars\lets-plot-kotlin-api-kernel-1.1.0.jar                                               [main] INFO resolver - Resolving org.jetbrains.lets-plot:lets-plot-common:1.5.4                                                                                                                                  [main] INFO resolver - Resolved: C:\Users\brandl\.ivy2\cache\org.jetbrains.lets-plot\lets-plot-common\jars\lets-plot-common-1.5.4.jar, C:\Users\brandl\.ivy2\cache\org.jetbrains.kotlin\kotlin-stdlib-jdk8\jars\kotlin-stdlib-jdk8-1.4.10.jar, C:\Users\brandl\.ivy2\cache\org.jetbrains.kotlin\kotlin-stdlib\jars\kotlin-stdlib-1.4.10.jar, C:\Users\brandl\.ivy2\cache\org.jetbrains.kotlin\kotlin-stdlib-common\jars\kotlin-stdlib-common-1.4.10.jar, C:\Users\brandl\.ivy2\cache\org.jetbrains\annotations\jars\annotations-13.0.jar, C:\Users\brandl\.ivy2\cache\org.jetbrains.kotlin\kotlin-stdlib-jdk7\jars\kotlin-stdlib-jdk7-1.4.10.jar, C:\Users\brandl\.ivy2\cache\org.jetbrains.kotlin\kotlin-reflect\jars\kotlin-reflect-1.4.10.jar, C:\Users\brandl\.ivy2\cache\io.github.microutils\kotlin-logging\jars\kotlin-logging-1.8.3.jar, C:\Users\brandl\.ivy2\cache\org.slf4j\slf4j-api\jars\slf4j-api-1.7.29.jar, C:\Users\brandl\.ivy2\cache\org.slf4j\slf4j-simple\jars\slf4j-simple-1.7.28.jar                                                                          [main] INFO resolver - Resolving org.jetbrains.lets-plot:lets-plot-image-export:1.5.4                                                                                                                            :: problems summary ::                                                                                                                                                                                           :::: ERRORS                                                                                                                                                                                                              unknown resolver null                                                                                                                                                                                                                                                                                                                                                                                                             unknown resolver null       

[ileasile]

Hello! Are you sure that it was not loaded? Have you tried some lets-plot commands after that?

[holgerbrandl]

Indeed, it loads the library and let-plot is fully functional. I took the word ERROR literally without doubting it. :-)

I still think that the ticket is somehow valid, as such a printout is confusing to new users and does not look pretty in reports.

[ileasile]

Ok, I will look into it