Despite adding the desired dependency to my project.clj file,
(defproject word-tree "0.1.0-SNAPSHOT"
:description "FIXME: write description"
:url "http://example.com/FIXME"
:license {:name "Eclipse Public License"
:url "http://www.eclipse.org/legal/epl-v10.html"}
:dependencies [[org.clojure/clojure "1.10.1"]
[org.clojure/clojurescript "1.10.520"]
[clojure-opennlp "0.5.0"] ; <----------------------here
[reagent "0.8.1"]]
...
I am unable to access the functions that the dependency provides.
After referencing the namespace in one of my files,
(ns word-tree.suffix-tree
(:require [clojure.string :as str]
[opennlp.nlp :as nlp])) ; <-----this is the namespace of the dependency
I get this error:
No such namespace: opennlp.nlp, could not locate opennlp/nlp.cljs, opennlp/nlp.cljc, or JavaScript source providing "opennlp.nlp"
The weirdest part is that when I run lein deps :tree the dependency shows up!
$ lein deps :tree
...
[cider/piggieback "0.4.1" :scope "test"]
[cljfmt "0.5.7"]
[rewrite-clj "0.5.2"]
[rewrite-cljs "0.4.3"]
[clojure-complete "0.2.5" :exclusions [[org.clojure/clojure]]]
[clojure-opennlp "0.5.0"] <------------------------------------------------here!!!
[instaparse "1.4.9"]
[org.apache.opennlp/opennlp-tools "1.9.0"]
[figwheel-sidecar "0.5.19" :scope "test"]
...
For my project I really want to use this dependency but it's not working. Any advice would be most welcome. Thanks.
It seems to me the problem is that the library is for Clojure on the JVM only, and you are trying to use it on a ClojureScript project.
No such namespace: opennlp.nlp, could not locate opennlp/nlp.cljs, opennlp/nlp.cljc, or JavaScript source providing "opennlp.nlp"
The compiler tried to look for ClojureScript code (extension .cljs) or compatible with both Clojure and ClojureScript (extension .cljc) or plain JavaScript, but found none.
Related
I'm trying to set up a development version and a production version of my application using leiningen via the project.clj.
How can I have both? Because I have to comment out the :main part of my project.clj in order to get access to the development version when I use lein repl.
So I am using stuartsierra/reloaded leiningen template which has a nice development environment.
It comes with no :main key and when I added one that's when I stopped getting the development version of my project.
Instead of seeing
user=>
When I type lein repl I end up seeing my main, which is in the jaribu namespace
io.wakamau.jaribu=> ;; my main
The solution that seems to work is to comment out the :main part of the project.clj.
(defproject io.wakamau/jaribu "0.1.0-SNAPSHOT"
:description "trying out pedestal and component"
:url "https://github.com/kevinmungai/jaribu"
:license {:name "TODO: Choose a license"
:url "http://choosealicense.com/"}
:dependencies [[org.clojure/clojure "1.10.0"]
[com.stuartsierra/component "0.3.2"]]
:profiles {:dev
{:dependencies [[org.clojure/tools.namespace 0.2.11"]
[com.stuartsierra/component.repl "0.2.0"]]
:source-paths ["dev"]}
:uberjar {:aot [io.wakamau.jaribu]}}
:main ^{:skip-aot true} io.wakamau.jaribu
:min-lein-version "2.0.0")
trying out
lein repl
results in:
io.wakamau.jaribu=>
when the :main is commented out:
(defproject io.wakamau/jaribu "0.1.0-SNAPSHOT"
...
;; :main ^{:skip-aot true} io.wakamau.jaribu
:min-lein-version "2.0.0")
the result is:
user=>
I have to admit that I don't know much about using leiningen.
You can specify :repl-options {:init-ns io.wakamau.jaribu=>} in project.clj. You can also specify constants for different environments in profiles.clj, e.g., :dev {:main io.wakamau.jaribu}. Also see How do I start the REPL in a user defined namespace?.
I've gotten leiningen to find a library I have in a corporate Artifactory repository, and it seems to download it just fine, but when I open try to require it, running the code with lein run comes back with a FileNotFoundException.
My project file looks like this:
(defproject clj-test "0.1.0-SNAPSHOT"
:description "FIXME: write description"
:url "http://example.com/FIXME"
:license {:name "Eclipse Public License"
:url "http://www.eclipse.org/legal/epl-v10.html"}
:dependencies [[org.clojure/clojure "1.8.0"]
[com.ourgroup/library "1.0.0"]]
:repositories [["releases" {:url "https://url-to-our-repo"
:username "username"
:password "password"}]]
:main ^:skip-aot clj-test.core
:target-path "target/%s"
:profiles {:uberjar {:aot :all}})
My single code file looks like this:
(ns clj-test.core
(:gen-class)
(:require [library :as lib]))
(defn -main
"I don't do a whole lot ... yet."
[& args]
(println "And now for something completely different..."))
You need to import a class. To get the name of the class take a look inside the jar (or at the Java source code) and find the Java package and class that make up the fully qualified class name that you need to import.
I've edited this. My earlier mistake has been corrected with the comment: "You require namespaces; you import classes. Requiring a class is no good". So for Java interop you need to import classes, the same as you would be doing if you were writing a Java source file.
In my luminus project I've added this:
[org.clojure/data.zip "0.1.2"]
to the list of dependencies but this throws an exception still:
(ns myapp.rss
(:use [clojure.data.xml :as xml :only [emit]]))
which is:
Could not locate clojure/data/xml__init.class or clojure/data/xml.clj on classpath
here is a working example to compare with:
project.clj:
(defproject hello "0.1.0-SNAPSHOT"
:description "FIXME: write description"
:url "http://example.com/FIXME"
:license {:name "Eclipse Public License"
:url "http://www.eclipse.org/legal/epl-v10.html"}
:main hello.core
:dependencies [[org.clojure/clojure "1.7.0"]
[org.clojure/data.xml "0.0.8"]
[org.clojure/data.zip "0.1.2"]
[clj-http "2.2.0"]])
from core.clj:
(ns hello.core
(:require [clj-http.client :as http-client]
[clojure.zip :as zip]
[clojure.xml :as xml]
[clojure.data.xml :as xml-data :refer [emit]]
[clojure.data.zip.xml :as xml-z]))
(use ... :only) has been deprecated by the require :refer pattern.
And here are some common things to check:
you have actually fetched the dependencies since adding them to the project.clj file
Try running lein deps from the command line to make sure fetching the dependencies worked
restart cider (if in emacs)
try from lein repl
if none of this works look in ~/.m2/repository and make sure the class files are there
run ps -ef (if in linux) to look at the command used to start java and make sure the classpath contains your dependency.
I was trying to pick up Clojure again, but am stumbling right at the beginning. I downloaded lein, and copied the following project.clj and a hello.clj to be absolutely sure that I have a minimal working example.
project.clj:
(defproject hello "0.1.0-SNAPSHOT"
:description "FIXME: write description"
:url "http://example.com/FIXME"
:license {:name "Eclipse Public License"
:url "http://www.eclipse.org/legal/epl-v10.html"}
:dependencies [[org.clojure/clojure "1.7.0"]]
:uberjar {:aot :all}
:main hello.core
)
hello.clj:
(ns hello.core
(:gen-class)
)
(defn -main
"This should be pretty simple."
[]
(println "Hello, World!"))
When I run './lein uberjar' I get these warnings:
Warning: specified :main without including it in :aot.
Implicit AOT of :main will be removed in Leiningen 3.0.0.
If you only need AOT for your uberjar, consider adding :aot :all into your
:uberjar profile instead.
Warning: The Main-Class specified does not exist within the jar. It may not be executable as expected. A gen-class directive may be missing in the namespace which contains the main method.
Created .../target/hello-0.1.0-SNAPSHOT.jar
Created .../target/hello-0.1.0-SNAPSHOT-standalone.jar
Trying to run this either with ./lein run or with java -jar ./target/hello-0.1.0-SNAPSHOT-standalone.jar results in exceptions:
Can't find 'hello.core' as .class or .clj for lein run: please check the spelling.
Exception in thread "main" java.io.FileNotFoundException: Could not locate hello/core__init.class or hello/core.clj on classpath., compiling:(/private/var/folders/28/bk6d4xj123b0xvsvk91_1jg80009rn/T/form-init1007755193774766954.clj:1:125)
So what is my problem here?
:uberjar {:aot :all} -> :profiles {:uberjar {:aot :all}}
And move hello.clj into ./src/hello directory and rename it to core.clj
I'm working on a library that works with both Clojure and ClojureScript.
Here's the project.clj for the library:
(defproject libtest "0.1.0-SNAPSHOT"
:description "FIXME: write description"
:url "http://example.com/FIXME"
:license {:name "Eclipse Public License"
:url "http://www.eclipse.org/legal/epl-v10.html"}
:dependencies [[org.clojure/clojure "1.4.0"]]
:plugins [[lein-cljsbuild "0.3.0"]]
:cljsbuild
{:crossovers [libtest],
:crossover-jar true
:jar true
:builds
[{:source-paths ["src/libtest"], :crossover-path "src/libtest"}]})
I'm including it as a dependency in another project. To get it to work from the ClojureScript side of my project, I had to add the exact namespace as a crossover under the cljsbuild key of my project.clj:
(defproject some-other-project
...
:dependencies [[org.clojure/clojure "1.5.0"]
[libtest "0.1.0-SNAPSHOT"]]
:cljsbuild {
:builds [{
...
:crossovers [libtest.core]
...
My question is, is this necessary? If it's on the classpath, why must I specifically tell it what namespaces I'm going to use? This can't scale well if I need to use dozens of namespaces, some of which will reference other namespaces and etc.
This is not a perfect solution, but works for me. When a namespace is specified as a crossover, its children are added recursively. So :crossovers [libtest] will add libtest.core too. If you specify a :crossover-path, you can see what files are generated into that directory.