Sometimes u can see this error if the port Zeppelin started with is already 
used. 

Zeppelin by default starts at 8080. But that port may be already in use. So you 
need to change the port in zeppelin-site.xml and restart.

Regards,
Sourav

> On Dec 19, 2015, at 11:00 AM, Girish Reddy <gir...@springml.com> wrote:
> 
> Hello:
> 
> I am building Zeppelin on Ubuntu (building Zeppelin-With-R, but I suspect 
> this issue is not specific to that build and more related to my env) and the 
> build itself goes through successfully.  However when I access the Zeppelin 
> URL from the browser, it's blank and I see this error in the browser console. 
>  Any thoughts on this please?
> 
> GET http://localhost:9191/styles/vendor.css 
> scripts.js:1 Uncaught ReferenceError: angular is not defined
> 
> 
> Here's the info on the successful build.
> 
> [INFO] Reactor Summary:
> [INFO] 
> [INFO] Zeppelin ........................................... SUCCESS [01:05 
> min]
> [INFO] Zeppelin: Interpreter .............................. SUCCESS [ 53.278 
> s]
> [INFO] Zeppelin: Zengine .................................. SUCCESS [ 34.592 
> s]
> [INFO] Zeppelin: Spark dependencies ....................... SUCCESS [03:06 
> min]
> [INFO] Zeppelin: Spark .................................... SUCCESS [ 57.024 
> s]
> [INFO] Zeppelin: R Interpreter ............................ SUCCESS [ 33.774 
> s]
> [INFO] Zeppelin: Markdown interpreter ..................... SUCCESS [  7.987 
> s]
> [INFO] Zeppelin: Angular interpreter ...................... SUCCESS [  8.228 
> s]
> [INFO] Zeppelin: Shell interpreter ........................ SUCCESS [  8.056 
> s]
> [INFO] Zeppelin: Hive interpreter ......................... SUCCESS [ 20.312 
> s]
> [INFO] Zeppelin: Apache Phoenix Interpreter ............... SUCCESS [ 28.433 
> s]
> [INFO] Zeppelin: PostgreSQL interpreter ................... SUCCESS [ 10.772 
> s]
> [INFO] Zeppelin: Tajo interpreter ......................... SUCCESS [ 11.499 
> s]
> [INFO] Zeppelin: Flink .................................... SUCCESS [ 20.561 
> s]
> [INFO] Zeppelin: Apache Ignite interpreter ................ SUCCESS [ 11.795 
> s]
> [INFO] Zeppelin: Kylin interpreter ........................ SUCCESS [  8.670 
> s]
> [INFO] Zeppelin: Lens interpreter ......................... SUCCESS [ 19.987 
> s]
> [INFO] Zeppelin: Cassandra ................................ SUCCESS [ 56.145 
> s]
> [INFO] Zeppelin: web Application .......................... SUCCESS [03:52 
> min]
> [INFO] Zeppelin: Server ................................... SUCCESS [ 43.173 
> s]
> [INFO] Zeppelin: Packaging distribution ................... SUCCESS [  8.931 
> s]
> [INFO] 
> ------------------------------------------------------------------------
> [INFO] BUILD SUCCESS
> [INFO] 
> ------------------------------------------------------------------------
> [INFO] Total time: 15:30 min
> [INFO] Finished at: 2015-12-19T10:52:06-08:00
> [INFO] Final Memory: 84M/300M
> 

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