Seems like you are working on it right now and you are closer to to a solution, right?
When trying your URL I now get a valid JSON back.
The error is obviously a JSON error and you need to make sure that what you return is valid JSON and that it conforms to what Layar expects.

I got this error…

Loading POIs
Loading POIs for page #1
oauth disabled…
oauth disabled…
POI fwd url = http://www.coart.nl/clients/layar/coartlayar.php?lang=en&countryCode=NL&lon=13.1554412842&userId=6f85d06929d160a7c8a3cc1ab4b54b87db99f74b&developerId=0&developerHash=3179c35ef1104dedbc9b211c3ac0e134fe1193ff&version=4.0&radius=4460&timestamp=1294330213578&lat=55.3812560135&layerName=coartstudio2&accuracy=100
Response received from provider, validating…
response code : 200
error validating provider response – Traceback (most recent call last): File “/var/www/dev.layar.com/layar/publishing/api_testpage_mainproxy.py”, line 50, in validate_response data = validator.validate(data, schema) File “/var/www/dev.layar.com/layar/util/jsontransmogrifier.py”, line 524, in validate raise ValidationError(message=”, “.join(self.errors), errors=self.errors) ValidationError: Value u” for field ‘hotspots’ is not of type ‘array’
JSON parse error( most likely)!, validate your response at http://www.jsonlint.com/
error : Value u” for field ‘hotspots’ is not of type ‘array’
error : Value u” for field ‘hotspots’ is not of type ‘array’
Error: No content available

Can someone help me please??

Hmm, strange. No UTF8 header garbage?
No other direct idea.

Hey,

Thanks for replying again…I’m still getting the same error in the api test page.

I also followed the on site tutorial for a simple Layar and get the same issue.

J

Try setting header to JSON.

header(‘Content-type: application/json’);

Hey there,

It executes cleanly when doing that – albeit expecting some parameters from the service call…

http://www.jimbowes.com/layar/webservice2.php

/jim

Parse error is probably just that, a parse error in your PHP code.
Copy and paste the URL (which you should see in the API test page) into your browser.
Then monitor Apache error_log to see what is causing the error.

Good tutorial, I followed it but am getting an error alert in the API test page – it just says: parse error.

Any ideas why this might be happening?

Best

Jim

The error responses gives you loads of clues on where to start searching.
1. JSON parse error.
2. Layer not available.

If I try the actual URL I get PHP errors so I would take a look into php error log as well.

oauth disabled…

POI fwd url = http://202.43.164.198/rizkidislayer.php?countryCode=NL&lon=-0.129089355469&timestamp=1278938137580&userId=6f85d06929d160a7c8a3cc1ab4b54b87db99f74b&developerId=21812&developerHash=e4282517c1d4636c1f513826ead36e4abaca9bbb&radius=4516&lat=51.4957059654&layerName=rizkidissertation&phoneId=6f85d06929d160a7c8a3cc1ab4b54b87db99f74b&accuracy=100

Response received from provider, validating…

error validating provider response – Traceback (most recent call last): File “/base/data/home/apps/layarservice/live313.343243777559663853/webapi20/apitesthandler.py”, line 168, in validate_response pois = json.loads(provider_response) File “/base/python_runtime/python_lib/versions/third_party/django-0.96/django/utils/simplejson/__init__.py”, line 232, in loads return cls(encoding=encoding, **kw).decode(s) File “/base/python_runtime/python_lib/versions/third_party/django-0.96/django/utils/simplejson/decoder.py”, line 251, in decode obj, end = self.raw_decode(s, idx=_w(s, 0).end()) File “/base/python_runtime/python_lib/versions/third_party/django-0.96/django/utils/simplejson/decoder.py”, line 270, in raw_decode raise ValueError(“No JSON object could be decoded”) ValueError: No JSON object could be decoded

JSON parse error( most likely)!, validate your response at http://www.jsonlint.com/

Error validating response…

Error:Layer not available

What did i do wrong?