[FIXED] clojure - leiningen could not find deeplearning4j artifact via maven

Issue

I am trying to take a next step in my clojure/leiningen learning process.

I would like to import deeplearning4j in my clojure project. Doing some research, it seems possible to do it with leiningen via maven. According to the tutorial, the maven libraries are from here.

The process I expected to work was to look for the library (deeplearning4j in this case) and add it to the project.clj as such:

(defproject to-remove "0.1.0-SNAPSHOT"
  :description "FIXME: write description"
  :url "http://example.com/FIXME"
  :license {:name "EPL-2.0 OR GPL-2.0-or-later WITH Classpath-exception-2.0"
            :url "https://www.eclipse.org/legal/epl-2.0/"}
  :dependencies [[org.clojure/clojure "1.10.1"]
                 [org.deeplearning4j/deeplearning4j "1.0.0-beta7"]]
  :main ^:skip-aot to-remove.core
  :target-path "target/%s"
  :profiles {:uberjar {:aot :all
                       :jvm-opts ["-Dclojure.compiler.direct-linking=true"]}})

But I get the error:

Could not find artifact org.deeplearning4j:deeplearning4j:jar:1.0.0-beta7 in central (https://repo1.maven.org/maven2/)
Could not find artifact org.deeplearning4j:deeplearning4j:jar:1.0.0-beta7 in clojars (https://repo.clojars.org/)
This could be due to a typo in :dependencies, file system permissions, or network issues.
If you are behind a proxy, try setting the 'http_proxy' environment variable.

I tried to add in the :repositories key, but also with no luck:

(defproject to-remove "0.1.0-SNAPSHOT"
  :description "FIXME: write description"
  :url "http://example.com/FIXME"
  :license {:name "EPL-2.0 OR GPL-2.0-or-later WITH Classpath-exception-2.0"
            :url "https://www.eclipse.org/legal/epl-2.0/"}
  :dependencies [[org.clojure/clojure "1.10.1"]
                 [org.deeplearning4j/deeplearning4j "1.0.0-beta7"]]
  :main ^:skip-aot to-remove.core
  :target-path "target/%s"
  :profiles {:uberjar {:aot :all
                       :jvm-opts ["-Dclojure.compiler.direct-linking=true"]}}
  :repositories [["maven-org" "https://search.maven.org/"]
                 ["maven-source" "https://mvnrepository.com/"]])

got me the error:

Retrieving org/deeplearning4j/deeplearning4j/1.0.0-beta7/deeplearning4j-1.0.0-beta7.jar from maven-org
Retrieving org/deeplearning4j/deeplearning4j/1.0.0-beta7/deeplearning4j-1.0.0-beta7.jar from maven-org
Apr 30, 2021 11:41:12 AM org.apache.http.client.protocol.ResponseProcessCookies processCookies
WARNING: Invalid cookie header: "Set-Cookie: MVN_SESSION=eyJhbGciOiJIUzI1NiJ9.eyJkYXRhIjp7InVpZCI6IjFjMTU0ZTQxLWE5YzItMTFlYi1hOTA5LTBiOWZkMzcxZjc1ZiJ9LCJleHAiOjE2NTEzMjk2NzIsIm5iZiI6MTYxOTc5MzY3MiwiaWF0IjoxNjE5NzkzNjcyfQ.onpYZCJmVMQt6ue-orMHPFCR6XxJb896QwbpMylElf4; Max-Age=31536000; Expires=Sat, 30 Apr 2022 14:41:12 GMT; SameSite=Lax; Path=/; HTTPOnly". Invalid 'expires' attribute: Sat, 30 Apr 2022
14:41:12 GMT
Could not find artifact org.deeplearning4j:deeplearning4j:jar:1.0.0-beta7 in central (https://repo1.maven.org/maven2/)
Could not find artifact org.deeplearning4j:deeplearning4j:jar:1.0.0-beta7 in clojars (https://repo.clojars.org/)
Could not transfer artifact org.deeplearning4j:deeplearning4j:jar:1.0.0-beta7 from/to maven-org (https://search.maven.org/): Checksum
validation failed, expected <!-- but is 6316efb328e43503f4e6869fa876dc6eb0e7a39b
Could not find artifact org.deeplearning4j:deeplearning4j:jar:1.0.0-beta7 in maven-source (https://mvnrepository.com/)
This could be due to a typo in :dependencies, file system permissions, or network issues.
If you are behind a proxy, try setting the 'http_proxy' environment variable.

Could anyone help me understand what I am getting wrong?

Thx!

Solution

In your project.clj, use id org.deeplearning4j/deeplearning4j-core, not org.deeplearning4j/deeplearning4j. You may need to look at this information on Deeplearning4J dependencies as you may need some others.

Answered By - Steffan Westcott
Answer Checked By - Dawn Plyler (JavaFixing Volunteer)