# java.lang.NoClassDefFoundError: while running latest openmrs snapshot version
**URL:** https://talk.openmrs.org/t/java-lang-noclassdeffounderror-while-running-latest-openmrs-snapshot-version/18688
**Category:** Development
**Created:** [June 27, 2018, 12:42pm UTC](https://talk.openmrs.org/t/java-lang-noclassdeffounderror-while-running-latest-openmrs-snapshot-version/18688 "2018-06-27T12:42:00Z")
**Posts on this page:** 20
**Page:** 3
### Author:  [@wyclif](https://talk.openmrs.org/u/wyclif)
#### Post date: [July 3, 2018, 2:35pm UTC](https://talk.openmrs.org/t/java-lang-noclassdeffounderror-while-running-latest-openmrs-snapshot-version/18688/43 "2018-07-03T14:35:40Z")
Do you already have npm installed or not? You could install it manually.
---
### Author:  [@mozzy](https://talk.openmrs.org/u/mozzy)
#### Post date: [July 3, 2018, 6:42pm UTC](https://talk.openmrs.org/t/java-lang-noclassdeffounderror-while-running-latest-openmrs-snapshot-version/18688/44 "2018-07-03T18:42:22Z")
it returns this
```
C:\Users\Dell>node -v
v8.11.3
```
---
### Author:  [@mozzy](https://talk.openmrs.org/u/mozzy)
#### Post date: [July 3, 2018, 6:44pm UTC](https://talk.openmrs.org/t/java-lang-noclassdeffounderror-while-running-latest-openmrs-snapshot-version/18688/45 "2018-07-03T18:44:16Z")
@wyclif , i have installed npm but using the windows installer.
am not sure whether installed it “on” the project as the error log says , but any way i installed it using the installer
---
### Author:  [@dkayiwa](https://talk.openmrs.org/u/dkayiwa)
#### Post date: [July 3, 2018, 7:12pm UTC](https://talk.openmrs.org/t/java-lang-noclassdeffounderror-while-running-latest-openmrs-snapshot-version/18688/46 "2018-07-03T19:12:46Z")
What does this command return? npm -v
---
### Author:  [@mozzy](https://talk.openmrs.org/u/mozzy)
#### Post date: [July 3, 2018, 7:28pm UTC](https://talk.openmrs.org/t/java-lang-noclassdeffounderror-while-running-latest-openmrs-snapshot-version/18688/47 "2018-07-03T19:28:46Z")
```
C:\Users\Dell>node -v
v8.11.3
C:\Users\Dell>npm -v
5.6.0
```
---
### Author:  [@dkayiwa](https://talk.openmrs.org/u/dkayiwa)
#### Post date: [July 3, 2018, 7:41pm UTC](https://talk.openmrs.org/t/java-lang-noclassdeffounderror-while-running-latest-openmrs-snapshot-version/18688/48 "2018-07-03T19:41:46Z")
Now compile the module again with this command: mvn clean install -e
---
### Author:  [@mozzy](https://talk.openmrs.org/u/mozzy)
#### Post date: [July 6, 2018, 5:26am UTC](https://talk.openmrs.org/t/java-lang-noclassdeffounderror-while-running-latest-openmrs-snapshot-version/18688/49 "2018-07-06T05:26:21Z")
ok sir, let me do that
---
### Author:  [@mozzy](https://talk.openmrs.org/u/mozzy)
#### Post date: [July 6, 2018, 5:44am UTC](https://talk.openmrs.org/t/java-lang-noclassdeffounderror-while-running-latest-openmrs-snapshot-version/18688/50 "2018-07-06T05:44:30Z")
@dkayiwa here the error
[https://pastebin.com/WvMGXxfe](https://pastebin.com/WvMGXxfe)
---
### Author:  [@dkayiwa](https://talk.openmrs.org/u/dkayiwa)
#### Post date: [July 6, 2018, 12:54pm UTC](https://talk.openmrs.org/t/java-lang-noclassdeffounderror-while-running-latest-openmrs-snapshot-version/18688/51 "2018-07-06T12:54:16Z")
Are you running this from command line? Or from your IDE?
---
### Author:  [@mozzy](https://talk.openmrs.org/u/mozzy)
#### Post date: [July 9, 2018, 3:12pm UTC](https://talk.openmrs.org/t/java-lang-noclassdeffounderror-while-running-latest-openmrs-snapshot-version/18688/52 "2018-07-09T15:12:20Z")
i run it from either way, previuosly i was running it from commandline, that last attempt was from ecclipse
---
### Author:  [@dkayiwa](https://talk.openmrs.org/u/dkayiwa)
#### Post date: [July 9, 2018, 3:33pm UTC](https://talk.openmrs.org/t/java-lang-noclassdeffounderror-while-running-latest-openmrs-snapshot-version/18688/53 "2018-07-09T15:33:42Z")
Can i look at the log when you compile from command line?
---
### Author:  [@mozzy](https://talk.openmrs.org/u/mozzy)
#### Post date: [July 12, 2018, 5:45am UTC](https://talk.openmrs.org/t/java-lang-noclassdeffounderror-while-running-latest-openmrs-snapshot-version/18688/54 "2018-07-12T05:45:53Z")
here is the error log from comand line
[https://hastebin.com/ihafefebok.rb](https://hastebin.com/ihafefebok.rb).
wen i read about installing npm and node. there are two types of installations. 1) a global installation
2) a local installtion to a project. wen i try to read the log , itsims it recqires a local instaltion ie `"(install node and npm) on project coreapps-omod:"`
so how do i make a local installtion of npm and node to the coreapps-omod project. coz globallyi have installed npm and node
@dkayiwa@wyclif
---
### Author:  [@dkayiwa](https://talk.openmrs.org/u/dkayiwa)
#### Post date: [July 12, 2018, 7:00am UTC](https://talk.openmrs.org/t/java-lang-noclassdeffounderror-while-running-latest-openmrs-snapshot-version/18688/55 "2018-07-12T07:00:15Z")
```
Caused by: java.net.UnknownHostException: proxy.host.net
```
Are you behind a proxy?
---
### Author:  [@mozzy](https://talk.openmrs.org/u/mozzy)
#### Post date: [July 12, 2018, 8:33am UTC](https://talk.openmrs.org/t/java-lang-noclassdeffounderror-while-running-latest-openmrs-snapshot-version/18688/56 "2018-07-12T08:33:53Z")
well, once , i was behind a proxy. but i remeber i tried to undo it…
here is my mvn settings file
```
80
proxy.host.net
${env.BINTRAY_USER}
${env.BINTRAY_API_KEY}
bintray-sdk
central
http://mirrors.ibiblio.org/maven2
ibiblio.org
http://mavenrepo.openmrs.org/nexus/content/repositories/public
http://mavenrepo.openmrs.org/nexus/content/repositories/public/archetype-catalog.xml
openmrs-repo
OpenMRS Nexus Repository
http://mavenrepo.openmrs.org/nexus/content/repositories/public
openmrs-repo-thirdparty
OpenMRS Thirdparty Nexus Repository
http://mavenrepo.openmrs.org/nexus/content/repositories/thirdparty
openmrs-bintray-repo
OpeMRS Maven Bintray Repository
https://dl.bintray.com/openmrs/maven/
false
openmrs-repo
OpenMRS Nexus Repository
http://mavenrepo.openmrs.org/nexus/content/repositories/public
openmrs-bintray-repo
OpeMRS Maven Bintray Repository
https://dl.bintray.com/openmrs/maven/
openmrs
openmrs
org.openmrs.maven.plugins
org.grails
```
---
### Author:  [@mozzy](https://talk.openmrs.org/u/mozzy)
#### Post date: [July 12, 2018, 8:35am UTC](https://talk.openmrs.org/t/java-lang-noclassdeffounderror-while-running-latest-openmrs-snapshot-version/18688/57 "2018-07-12T08:35:16Z")
i think that wud be the default seetings file
---
### Author:  [@dkayiwa](https://talk.openmrs.org/u/dkayiwa)
#### Post date: [July 12, 2018, 8:57am UTC](https://talk.openmrs.org/t/java-lang-noclassdeffounderror-while-running-latest-openmrs-snapshot-version/18688/58 "2018-07-12T08:57:14Z")
Can you remove the proxies node and try again?
---
### Author:  [@mozzy](https://talk.openmrs.org/u/mozzy)
#### Post date: [July 12, 2018, 9:00am UTC](https://talk.openmrs.org/t/java-lang-noclassdeffounderror-while-running-latest-openmrs-snapshot-version/18688/59 "2018-07-12T09:00:12Z")
do u mean deleteing out the whole `` element?
---
### Author:  [@dkayiwa](https://talk.openmrs.org/u/dkayiwa)
#### Post date: [July 12, 2018, 9:24am UTC](https://talk.openmrs.org/t/java-lang-noclassdeffounderror-while-running-latest-openmrs-snapshot-version/18688/60 "2018-07-12T09:24:59Z")
Yes that is what i mean.
---
### Author:  [@mozzy](https://talk.openmrs.org/u/mozzy)
#### Post date: [July 12, 2018, 8:36pm UTC](https://talk.openmrs.org/t/java-lang-noclassdeffounderror-while-running-latest-openmrs-snapshot-version/18688/61 "2018-07-12T20:36:48Z")
wen i removed the proxy element , it built succesfully
---
### Author:  [@mozzy](https://talk.openmrs.org/u/mozzy)
#### Post date: [July 12, 2018, 9:25pm UTC](https://talk.openmrs.org/t/java-lang-noclassdeffounderror-while-running-latest-openmrs-snapshot-version/18688/62 "2018-07-12T21:25:37Z")
wen i installed the coreapps, now al the reff apps have started succesfully on platform 2.2 snapshot. so this issue is now solved at last. thx sir @dkayiwa
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