Failing to connect to ColdFusion.

[Ian Skinner-3]

I am playing again with Flex after over a year off.  I set up a new
project and was proud of myself that I got one set up in just two tries.

I can properly serve up simple, static Flex applications.  So I moved on
to connecting to my ColdFusion for the back end.  When I run it now I
get this error when I try to call the ColdFusion component.

[RPC Fault faultString="Send failed"
faultCode="Client.Error.MessageSend" faultDetail="Channel.Connect.Failed
error NetConnection.Call.Failed: HTTP: Failed: url:
'http://localhost/playground/flex2gateway/'"]

"http://localhost/playground/flex2gateway/" is not a valid URL. The
proper path to the Flex project is "http://localhost/flex/playground/".  
But this does not have a 'flex2gateway' under it.  I am not sure what
this means.

I presume I have something missing in my configurations, but I am not
sure what.  Google searching has told me to look at the compiler
arguments of my project:
-services
"C:\JRun4\servers\cfusion\cfusion-ear\cfusion-war\WEB-INF\flex\services-config.xml"
-locale en_US

This seems to be correct.  That is the location of my ColdFusion server.

Google results also tell me to look at the endpoint in my
services.congig.xml file.  But which one?  There are several in there
and I don't see any that are "ColdFusion" as I sort of expected from my
RemoteObject MXML tag.
    <mx:RemoteObject
        id="cfc"
        destination="ColdFusion"
        source="cfcs.foobar">


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[cfaddict]

Are you using Flex Builder? You are probably just not setting your project
up correctly. Check out this tutorial I wrote that was part of a bigger
project but this step walks you through a basic setup.

http://www.danvega.org/blog/index.cfm?mode=entry&entry=9927B08A-3FF4-37A0-036DDF334317ACB5

Thank You
Dan Vega
danvega@...
http://www.danvega.org


On Wed, Jan 14, 2009 at 4:34 PM, Ian Skinner <HOF@...> wrote:

> I am playing again with Flex after over a year off.  I set up a new
> project and was proud of myself that I got one set up in just two tries.
>
> I can properly serve up simple, static Flex applications.  So I moved on
> to connecting to my ColdFusion for the back end.  When I run it now I
> get this error when I try to call the ColdFusion component.
>
> [RPC Fault faultString="Send failed"
> faultCode="Client.Error.MessageSend" faultDetail="Channel.Connect.Failed
> error NetConnection.Call.Failed: HTTP: Failed: url:
> 'http://localhost/playground/flex2gateway/'"]
>
> "http://localhost/playground/flex2gateway/" is not a valid URL. The
> proper path to the Flex project is "http://localhost/flex/playground/".
> But this does not have a 'flex2gateway' under it.  I am not sure what
> this means.
>
> I presume I have something missing in my configurations, but I am not
> sure what.  Google searching has told me to look at the compiler
> arguments of my project:
> -services
>
> "C:\JRun4\servers\cfusion\cfusion-ear\cfusion-war\WEB-INF\flex\services-config.xml"
> -locale en_US
>
> This seems to be correct.  That is the location of my ColdFusion server.
>
> Google results also tell me to look at the endpoint in my
> services.congig.xml file.  But which one?  There are several in there
> and I don't see any that are "ColdFusion" as I sort of expected from my
> RemoteObject MXML tag.
>    <mx:RemoteObject
>        id="cfc"
>        destination="ColdFusion"
>        source="cfcs.foobar">
>
>
>

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[Ian Skinner-3]

Dan Vega wrote:
> Are you using Flex Builder? You are probably just not setting your project
> up correctly. Check out this tutorial I wrote that was part of a bigger
> project but this step walks you through a basic setup.
>
> http://www.danvega.org/blog/index.cfm?mode=entry&entry=9927B08A-3FF4-37A0-036DDF334317ACB5

Yes I am using Flex Builder 2.  I also suspect it is a problem with the
project set up, but I am unsure what the problem is.  I now get an error
that seems to point to the right folder by changing the context of my
project from 'playground' to 'flex/playground'.  But that didn't resolve
anything.

What I am wondering is if I am having trouble with my server set up.

ColdFusion
c:/Jrun4/servers/cfusion/

Flex Development Location
c:/development/Flex/Playground/

IIS Web Root
c:/development/wwwroot/

Flex Project output folder
c:/development/wwwroot/flex/playground/

I looked over your link, but there seems to be quite a difference
between Flex 2 and Flex 3 in the wizards.

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[Jeffry Houser]

 Flash and Flex communicate using an AMF Gateway built into ColdFusion.  
Most of the time it is located at "domain/flex2gateway" so in your case
I'd expect it to be "localhost/flex2gateway" .  If that URL loads a
blank page [as opposed to a 404 error], there is a good chance that the
gateway is working properly.  Just that your Flex app is looking for the
URL in the wrong place.

 You probably need to open up the Services-Config file and possibly make
changes to it.  The full path location of services-config should be
listed as a compiler parameter in the project properties.

Ian Skinner wrote:

> I am playing again with Flex after over a year off.  I set up a new
> project and was proud of myself that I got one set up in just two tries.
>
> I can properly serve up simple, static Flex applications.  So I moved on
> to connecting to my ColdFusion for the back end.  When I run it now I
> get this error when I try to call the ColdFusion component.
>
> [RPC Fault faultString="Send failed"
> faultCode="Client.Error.MessageSend" faultDetail="Channel.Connect.Failed
> error NetConnection.Call.Failed: HTTP: Failed: url:
> 'http://localhost/playground/flex2gateway/'"]
>
> "http://localhost/playground/flex2gateway/" is not a valid URL. The
> proper path to the Flex project is "http://localhost/flex/playground/".  
> But this does not have a 'flex2gateway' under it.  I am not sure what
> this means.
>
> I presume I have something missing in my configurations, but I am not
> sure what.  Google searching has told me to look at the compiler
> arguments of my project:
> -services
> "C:\JRun4\servers\cfusion\cfusion-ear\cfusion-war\WEB-INF\flex\services-config.xml"
> -locale en_US
>
> This seems to be correct.  That is the location of my ColdFusion server.
>
> Google results also tell me to look at the endpoint in my
> services.congig.xml file.  But which one?  There are several in there
> and I don't see any that are "ColdFusion" as I sort of expected from my
> RemoteObject MXML tag.
>     <mx:RemoteObject
>         id="cfc"
>         destination="ColdFusion"
>         source="cfcs.foobar">
>
>
>

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[Gareth Arch]

Don't forget the trailing slash on the flex2gateway link ( localhost/flex2gateway/ ) or it will not work either

>Flash and Flex communicate using an AMF Gateway built into ColdFusion.  
>Most of the time it is located at "domain/flex2gateway" so in your case
>I'd expect it to be "localhost/flex2gateway" .  If that URL loads a
>blank page [as opposed to a 404 error], there is a good chance that the
>gateway is working properly.  Just that your Flex app is looking for the
>URL in the wrong place.
>
> You probably need to open up the Services-Config file and possibly make
>changes to it.  The full path location of services-config should be
>listed as a compiler parameter in the project properties.
>
>Ian Skinner wrote:
>>

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[Ian Skinner-3]

Jeffry Houser wrote:
>  Flash and Flex communicate using an AMF Gateway built into ColdFusion.  
> Most of the time it is located at "domain/flex2gateway" so in your case
> I'd expect it to be "localhost/flex2gateway" .  If that URL loads a
> blank page [as opposed to a 404 error], there is a good chance that the
> gateway is working properly.

Thanks, this got me there.  I did not need to do anything in my
services-config file.  On your hint that the path should be
"domain/flex2gateway" I removed everything from the 'path' property in
my Project Configuration.  Thus Flash player was now looking for
'http://localhost/flex2gateway"; *not*
"http://localhost/playground/flex2gateway" or
"http://localhost/flex/playground" which is what it was looking for before.

I then got an error about not being able to find my cfc file and I
realized that I need the full path from the root of the site *not* the
relative path from the flex/flash page.
    <mx:RemoteObject id="helloWorld"
        destination="ColdFusion"
        source="flex.playground.cfcs.foobar">

I am now connecting to my local ColdFusion server and receiving results
from it.

Thank You Jaffry and Gareth.
Ian Skinner


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