Templates are not part of the PredictionIO, they are often supported by their 
authors. Check the Template gallery, there should be a support link for each 
Template, some are Apache, some are supported by their authors. Their may be a 
github issues link there for author support.

Not all Templates support evaluation so make sure the hardcoded name does not 
indicate lack of support. 


On Apr 18, 2017, at 10:19 PM, Ravi Kiran <[email protected]> wrote:

@Vaghawan, Issue is sorted out. I dont know for some reason app name was 
hardcoded (as "INVALID_APP_NAME") in template I am using. I changed that name 
to my app name and it worked. 
Link of template I am using 
https://github.com/apache/incubator-predictionio-template-attribute-based-classifier/blob/develop/src/main/scala/Evaluation.scala
 
<https://github.com/apache/incubator-predictionio-template-attribute-based-classifier/blob/develop/src/main/scala/Evaluation.scala>,
 Line 27

This is not the way it should be hardcoded or am I missing something?

On Wed, Apr 19, 2017 at 9:10 AM, Vaghawan Ojha <[email protected] 
<mailto:[email protected]>> wrote:
Ya I see! the pio path shouldn't be the problem. But you can easily export the 
pio path. 

Ya, you can stick with the same pio, but could create new app from scratch, 
like downloading the template and creating a new pio app and changing 
engine.json. 

Hope  this should work. 

On Wed, Apr 19, 2017 at 9:22 AM, Ravi Kiran <[email protected] 
<mailto:[email protected]>> wrote:

I am running "pio build" from template dir.  But pio path is not configured. 
So, everytime I have to give absolute path of pio. Could that be a problem (But 
most queries are working). 
For e.g.
 ../bin/pio build
../bin/pio eval mlframework.AccuracyEvaluation mlframework.EngineParamsList
../bin app list

I will made new app right from scratch, even then this issue persists :(

On Wed, Apr 19, 2017 at 9:00 AM, Vaghawan Ojha <[email protected] 
<mailto:[email protected]>> wrote:
Hi, 

This seems fine, did you make sure to run pio build from that template dir? In 
case still not working, I would suggest you to delete the wineapp(if you 
haven't imported the events yet) and recreate a app, and change the engine.json 
and build again. 

I had this problem with both MyRecommendation and Universal Recommender as 
well, in case of MyRecommendation, I rebuilt the app and it worked. 

Please try that, it may work for you as well. 

Thanks

On Wed, Apr 19, 2017 at 9:05 AM, Ravi Kiran <[email protected] 
<mailto:[email protected]>> wrote:
[INFO] [App$]                 Name |   ID |                                     
                  Access Key | Allowed Event(s)
[INFO] [App$]                app10 |   10 |                                     
                     mnbvcxz | (all)
[INFO] [App$]         sample_app10 |   11 |                                     
                        1234 | (all)
[INFO] [App$]         sample_app21 |   13 |                                     
                        4321 | (all)
[INFO] [App$]         sample_app22 |   14 |                                     
                    4321abcd | (all)
[INFO] [App$]         sample_app23 |   15 |                                     
                   4321abcde | (all)
[INFO] [App$]         sample_app26 |   18 |                                     
                 4321abcdefg | (all)
[INFO] [App$]              wineapp |   19 |                                     
                 wineappeine | (all)
[INFO] [App$] Finished listing 19 app(s).
 

This is output of pio app list

On Wed, Apr 19, 2017 at 8:42 AM, Ravi Kiran <[email protected] 
<mailto:[email protected]>> wrote:
Contents of engine.json

{
  "id": "default",
  "description": "Default settings",
  "engineFactory": "mlframework.ClassificationEngine",
  "datasource": {
    "params": {
      "appName": "wineapp"
    }
  },
  "algorithms": [
    {
      "name": "naive",
      "params": {
        "lambda": 1.0
      }
    }
  ]
}


Location of engine.json
/home/user_name/Documents/code/apache-predictionio-0.10.0-incubating/PredictionIO-0.10.0-incubating/sample_classifier/engine.json
I have installed template in sample_classifier folder




On Wed, Apr 19, 2017 at 8:32 AM, Vaghawan Ojha <[email protected] 
<mailto:[email protected]>> wrote:
What does your pio app list produce? 

And can you also send a screenshot of your engine.json. This engine.json should 
be inside your template directory where you installed your template. 

I had faced  this issue, but resolved it too. Let me know with your app list 
screenshot and corresponding engine.json

Thanks

On Wed, Apr 19, 2017 at 8:45 AM, Ravi Kiran <[email protected] 
<mailto:[email protected]>> wrote:
@Vaghawan, I have updated app_name in engine.json . And then 'pio Build' and 
evaluation query. Still this issue exists


On 19-Apr-2017 8:14 AM, "Vaghawan Ojha" <[email protected] 
<mailto:[email protected]>> wrote:
Hi, 

It seems you haven't changed the app name in your engine.json. There is an 
engine.json in your template directory, please make sure that you have changed 
that name. 

And it will works. Make sure you input the right appname in your engine.json. 

Thanks


On Wed, Apr 19, 2017 at 5:33 AM, Ravi Kiran <[email protected] 
<mailto:[email protected]>> wrote:
Hi, 
When I try to evaluate I am getting following error.


[ERROR] [Common$] Invalid app name INVALID_APP_NAME
Exception in thread "main" java.lang.IllegalArgumentException: Invalid app name 
INVALID_APP_NAME


I have updated app name in engine.json
This app is in 'pio app list'
I have also done 'pio build', 'pio train' and 'pio deploy' before running 
evaluation query.


Can you please help me resolve this query?

Thanks










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