nopCommerce was working fine, and then this error...
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Server Error in '/shop' Application.
Execution permission cannot be acquired.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Security.Policy.PolicyException: Execution permission cannot be acquired.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[PolicyException: Execution permission cannot be acquired.]
System.Security.CodeAccessSecurityEngine.TryResolveGrantSet(Evidence evidence, PermissionSet& grantSet) +3830485
System.Security.CodeAccessSecurityEngine.ResolveGrantSet(Evidence evidence, Int32& specialFlags, Boolean checkExecutionPermission) +44
[FileLoadException: Could not load file or assembly 'Nop.Payment.Svea, Version=1.9.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. PolicyException thrown. (Exception from HRESULT: 0x80131416)]
System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks) +0
System.Reflection.RuntimeAssembly.nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks) +39
System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection, Boolean suppressSecurityChecks) +132
System.Reflection.RuntimeAssembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +144
System.Reflection.Assembly.Load(String assemblyString) +28
System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +46
[ConfigurationErrorsException: Could not load file or assembly 'Nop.Payment.Svea, Version=1.9.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. PolicyException thrown. (Exception from HRESULT: 0x80131416)]
System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +618
System.Web.Configuration.CompilationSection.LoadAllAssembliesFromAppDomainBinDirectory() +209
System.Web.Configuration.CompilationSection.LoadAssembly(AssemblyInfo ai) +130
System.Web.Compilation.BuildManager.GetReferencedAssemblies(CompilationSection compConfig) +178
System.Web.Compilation.BuildManager.GetReferencedAssemblies() +46
[TargetInvocationException: Exception has been thrown by the target of an invocation.]
System.RuntimeMethodHandle._InvokeMethodFast(IRuntimeMethodInfo method, Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeType typeOwner) +0
System.RuntimeMethodHandle.InvokeMethodFast(IRuntimeMethodInfo method, Object target, Object[] arguments, Signature sig, MethodAttributes methodAttributes, RuntimeType typeOwner) +72
System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks) +335
System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) +28
System.Data.Metadata.Edm.AspProxy.GetBuildManagerReferencedAssemblies() +133
[InvalidOperationException: Unable to determine application context. The ASP.NET application path could not be resolved.]
System.Data.Metadata.Edm.AspProxy.GetBuildManagerReferencedAssemblies() +236
System.Data.Metadata.Edm.DefaultAssemblyResolver.GetAllDiscoverableAssemblies() +435
System.Data.Metadata.Edm.DefaultAssemblyResolver.GetWildcardAssemblies() +4
System.Data.Metadata.Edm.MetadataArtifactLoaderCompositeResource.LoadResources(String assemblyName, String resourceName, ICollection`1 uriRegistry, MetadataArtifactAssemblyResolver resolver) +108
System.Data.Metadata.Edm.MetadataArtifactLoaderCompositeResource.CreateResourceLoader(String path, ExtensionCheck extensionCheck, String validExtension, ICollection`1 uriRegistry, MetadataArtifactAssemblyResolver resolver) +180
System.Data.Metadata.Edm.MetadataArtifactLoader.Create(String path, ExtensionCheck extensionCheck, String validExtension, ICollection`1 uriRegistry, MetadataArtifactAssemblyResolver resolver) +8564268
System.Data.Metadata.Edm.MetadataCache.SplitPaths(String paths) +271
System.Data.Common.Utils.<>c__DisplayClass2.<Evaluate>b__0() +19
System.Data.Common.Utils.Result.GetValue() +100
System.Data.Common.Utils.Memoizer`2.Evaluate(TArg arg) +181
System.Data.EntityClient.EntityConnection.GetMetadataWorkspace(Boolean initializeAllCollections) +292
System.Data.Objects.ObjectContext.RetrieveMetadataWorkspaceFromConnection() +29
System.Data.Objects.ObjectContext..ctor(EntityConnection connection, Boolean isConnectionConstructor) +205
[ArgumentException: The supplied connection string is not valid, because it contains insufficient mapping or metadata information.
Parameter name: connectionString]
System.Data.Objects.ObjectContext..ctor(EntityConnection connection, Boolean isConnectionConstructor) +233
System.Data.Objects.ObjectContext..ctor(String connectionString, String defaultContainerName) +27
NopSolutions.NopCommerce.BusinessLogic.Data.NopObjectContext..ctor(String connectionString) +42
BuildUp_NopSolutions.NopCommerce.BusinessLogic.Data.NopObjectContext(IBuilderContext ) +179
Microsoft.Practices.ObjectBuilder2.DynamicBuildPlanMethod.Invoke(IBuilderContext context) +0
Microsoft.Practices.ObjectBuilder2.DynamicMethodBuildPlan.BuildUp(IBuilderContext context) +12
Microsoft.Practices.ObjectBuilder2.BuildPlanStrategy.PreBuildUp(IBuilderContext context) +195
Microsoft.Practices.ObjectBuilder2.StrategyChain.ExecuteBuildUp(IBuilderContext context) +190
Microsoft.Practices.ObjectBuilder2.BuilderContext.NewBuildUp(NamedTypeBuildKey newBuildKey) +113
Microsoft.Practices.Unity.ObjectBuilder.NamedTypeDependencyResolverPolicy.Resolve(IBuilderContext context) +48
BuildUp_NopSolutions.NopCommerce.BusinessLogic.Directory.LanguageService(IBuilderContext ) +113
Microsoft.Practices.ObjectBuilder2.DynamicBuildPlanMethod.Invoke(IBuilderContext context) +0
Microsoft.Practices.ObjectBuilder2.DynamicMethodBuildPlan.BuildUp(IBuilderContext context) +12
Microsoft.Practices.ObjectBuilder2.BuildPlanStrategy.PreBuildUp(IBuilderContext context) +195
Microsoft.Practices.ObjectBuilder2.StrategyChain.ExecuteBuildUp(IBuilderContext context) +190
Microsoft.Practices.Unity.UnityContainer.DoBuildUp(Type t, Object existing, String name, IEnumerable`1 resolverOverrides) +163
[ResolutionFailedException: Resolution of the dependency failed, type = "NopSolutions.NopCommerce.BusinessLogic.Directory.ILanguageService", name = "(none)".
Exception occurred while: Calling constructor NopSolutions.NopCommerce.BusinessLogic.Data.NopObjectContext(System.String connectionString).
Exception is: ArgumentException - The supplied connection string is not valid, because it contains insufficient mapping or metadata information.
Parameter name: connectionString
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At the time of the exception, the container was:
Resolving NopSolutions.NopCommerce.BusinessLogic.Directory.LanguageService,(none) (mapped from NopSolutions.NopCommerce.BusinessLogic.Directory.ILanguageService, (none))
Resolving parameter "context" of constructor NopSolutions.NopCommerce.BusinessLogic.Directory.LanguageService(NopSolutions.NopCommerce.BusinessLogic.Data.NopObjectContext context)
Resolving NopSolutions.NopCommerce.BusinessLogic.Data.NopObjectContext,(none)
Calling constructor NopSolutions.NopCommerce.BusinessLogic.Data.NopObjectContext(System.String connectionString)
]
Microsoft.Practices.Unity.UnityContainer.DoBuildUp(Type t, Object existing, String name, IEnumerable`1 resolverOverrides) +327
Microsoft.Practices.Unity.UnityContainer.Resolve(Type t, String name, ResolverOverride[] resolverOverrides) +15
Microsoft.Practices.Unity.UnityContainerExtensions.Resolve(IUnityContainer container, ResolverOverride[] overrides) +81
NopSolutions.NopCommerce.BusinessLogic.Infrastructure.UnityDependencyResolver.Resolve() +107
NopSolutions.NopCommerce.BusinessLogic.Infrastructure.IoC.Resolve() +98
NopSolutions.NopCommerce.BusinessLogic.NopContext.get_WorkingLanguage() +484
NopSolutions.NopCommerce.BusinessLogic.Profile.MembershipHttpModule.Application_AuthenticateRequest(Object sender, EventArgs e) +2161
System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +148
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75
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very anoying!! any ideas on what this could be??? PLEASE HELP!