asp.net - Server Error in '/' Application - Could not load file or assembly -

can body please tell me might wrong here , how may go fixing it? thanks

could not load file or assembly 'frameprocessor_dll' or 1 of dependencies. attempt made load program incorrect format.

description: unhandled exception occurred during execution of current web request. please review stack trace more information error , originated in code.

exception details: system.badimageformatexception: not load file or assembly 'frameprocessor_dll' or 1 of dependencies. attempt made load program incorrect format.

source error:

an unhandled exception generated during execution of current web request. information regarding origin , location of exception can identified using exception stack trace below.

assembly load trace: following information can helpful determine why assembly 'frameprocessor_dll' not loaded.

=== pre-bind state information === log: displayname = frameprocessor_dll (partial) wrn: partial binding information supplied assembly: wrn: assembly name: frameprocessor_dll | domain id: 2 wrn: partial bind occurs when part of assembly display name provided. wrn: might result in binder loading incorrect assembly. wrn: recommended provide specified textual identity assembly, wrn: consists of simple name, version, culture, , public key token. wrn: see whitepaper http://go.microsoft.com/fwlink/?linkid=109270 more information , common solutions issue. log: appbase = file:///c:/users/administrator/downloads/syncre/syncre/syncrewebservices/syncre_layerab_webservice/ log: initial privatepath = c:\users\administrator\downloads\syncre\syncre\syncrewebservices\syncre_layerab_webservice\bin calling assembly : (unknown). === log: bind starts in default load context. log: using application configuration file: c:\users\administrator\downloads\syncre\syncre\syncrewebservices\syncre_layerab_webservice\web.config log: using host configuration file: c:\users\administrator\documents\iisexpress\config\aspnet.config log: using machine configuration file c:\windows\microsoft.net\framework\v4.0.30319\config\machine.config. log: policy not being applied reference @ time (private, custom, partial, or location-based assembly bind). log: attempting download of new url file:///c:/windows/microsoft.net/framework/v4.0.30319/temporary asp.net files/root/90b7448e/a25f12e1/frameprocessor_dll.dll. log: attempting download of new url file:///c:/windows/microsoft.net/framework/v4.0.30319/temporary asp.net files/root/90b7448e/a25f12e1/frameprocessor_dll/frameprocessor_dll.dll. log: attempting download of new url file:///c:/users/administrator/downloads/syncre/syncre/syncrewebservices/syncre_layerab_webservice/bin/frameprocessor_dll.dll. err: failed complete setup of assembly (hr = 0x8007000b). probing terminated.

stack trace:

[badimageformatexception: not load file or assembly 'frameprocessor_dll' or 1 of dependencies. attempt made load program incorrect format.]
system.reflection.runtimeassembly._nload(assemblyname filename, string codebase, evidence assemblysecurity, runtimeassembly locationhint, stackcrawlmark& stackmark, intptr pprivhostbinder, boolean throwonfilenotfound, boolean forintrospection, boolean suppresssecuritychecks) +0
system.reflection.runtimeassembly.nload(assemblyname filename, string codebase, evidence assemblysecurity, runtimeassembly locationhint, stackcrawlmark& stackmark, intptr pprivhostbinder, boolean throwonfilenotfound, boolean forintrospection, boolean suppresssecuritychecks) +34
system.reflection.runtimeassembly.internalloadassemblyname(assemblyname assemblyref, evidence assemblysecurity, runtimeassembly reqassembly, stackcrawlmark& stackmark, intptr pprivhostbinder, boolean throwonfilenotfound, boolean forintrospection, boolean suppresssecuritychecks) +152
system.reflection.runtimeassembly.internalload(string assemblystring, evidence assemblysecurity, stackcrawlmark& stackmark, intptr pprivhostbinder, boolean forintrospection) +77
system.reflection.runtimeassembly.internalload(string assemblystring, evidence assemblysecurity, stackcrawlmark& stackmark, boolean forintrospection) +16 system.reflection.assembly.load(string assemblystring) +28
system.web.configuration.compilationsection.loadassemblyhelper(string assemblyname, boolean stardirective) +38

[configurationerrorsexception: not load file or assembly 'frameprocessor_dll' or 1 of dependencies. attempt made load program incorrect format.]
system.web.configuration.compilationsection.loadassemblyhelper(string assemblyname, boolean stardirective) +736
system.web.configuration.compilationsection.loadallassembliesfromappdomainbindirectory() +217 system.web.configuration.compilationsection.loadassembly(assemblyinfo ai) +130
system.web.compilation.buildmanager.getreferencedassemblies(compilationsection compconfig) +170
system.web.compilation.buildmanager.getprestartinitmethodsfromreferencedassemblies() +91 system.web.compilation.buildmanager.callprestartinitmethods(string prestartinitlistpath, boolean& isrefassemblyloaded) +284
system.web.compilation.buildmanager.executepreappstart() +153
system.web.hosting.hostingenvironment.initialize(applicationmanager appmanager, iapplicationhost apphost, iconfigmappathfactory configmappathfactory, hostingenvironmentparameters hostingparameters, policylevel policylevel, exception appdomaincreationexception) +521

[httpexception (0x80004005): not load file or assembly 'frameprocessor_dll' or 1 of dependencies. attempt made load program incorrect format.]
system.web.httpruntime.firstrequestinit(httpcontext context) +9955652 system.web.httpruntime.ensurefirstrequestinit(httpcontext context) +101 system.web.httpruntime.processrequestnotificationprivate(iis7workerrequest wr, httpcontext context) +254

dependency walker reveals dlls intact.

check iis , asp.net set-up, , make sure running on target .net version. check application pool configuration too. it's not clear detect problem.

also may fixed trying clean debug , release folders in solution.