urgent:You have attempted to dereference a scalar variable

i am getting the following error ,pls give me a solution to colve this issue ?
i am attaching all the 5 files that has been processed in zip format


You have attempted to dereference a scalar variable of type class java.lang.String as a structure with members.

The error occurred in C:\JRun4\servers\cfusion\cfusion-ear\cfusion-war\WEB-INF\cfusion\CustomTags\Queries\queryParams.cfm: line 41
Called from C:\JRun4\servers\cfusion\cfusion-ear\cfusion-war\WEB-INF\cfusion\CustomTags\Queries\select.cfm: line 50
Called from C:\JRun4\servers\cfusion\cfusion-ear\cfusion-war\WEB-INF\cfusion\CustomTags\Utility\authenticate.cfm: line 30
Called from C:\JRun4\servers\cfusion\cfusion-ear\cfusion-war\WEB-INF\cfusion\CustomTags\Queries\RecordSheets\Utility\checkUser.cfm: line 37
Called from C:\JRun4\servers\cfusion\cfusion-ear\cfusion-war\Myriad\RecordSheets\frontPage.cfm: line 13

39 : <cfset datasource = application.datasources[dsName]>
40 : <cfparam name="datasource.dbType" default="ODBC">
41 : <cfset "caller.#attributes.datasource#" = datasource>
42 :
43 : <cfelse>



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Hmmm, that's a very complicated set of custom tags, and I'm afraid that only some diligent debugging is going to determine the real cause of the problem.

In this custom tag queryParams.cfm, you are setting attributes.datasource to a default of "datasource". Then you are trying to set a variable in the caller to this value by using <cfset "caller.#attributes.datasource#" = datasource>. This evaluates to <cfset caller.datasource = datasource>. Can you dump #datasource# in the caller? Can you dump the attributes scope in the queryParams.cfm custom tag? I'd start with a lot of cfdumps and try to determine what CF doesn't agree with.

Hi never use cfdump

willu pls tell me what r the stpes that has to done
what the info that i need to give to u

u can also mail me to URL

Did you write these custom tags? If not, I would say you are going to have a difficult time debugging them as they are extremely complex.

CFDUMP is a debugging tag and is straightforward to use. http://livedocs.macromedia.com/cold...1.htm#wp1734655

I'm afraid that asking me to "tell you want steps have to be done" is rather useless. Asking me to tell you what to do would be like a mechanic trying to tell me how to diagnose a problem with my car's engine. Debugging code, especially complex code, is not something that can be explained readily. Experience is the only real teacher in these sorts of instances.

yes its not written by me
some had written this code ,we r migrating this to mx
while we do that we r getting this error ???

can i send the snapshot of cfdum of the "datasource"


thanks and regards
Vishnu Prasad