I have the below code in a .Net 4 Winforms app which loads an assembly. All files are on a C:. There are numerous DLL's which work fine but two error with the following: [code]
View 3 RepliesI am loading an Assembly using Assembly.LoadFrom() as the assemblies are located in a different path from Application Base directory.
Dim oAssembly As Assembly = _
Assembly.LoadFrom("C:\MyFolder\" + ddlXlate.SelectedItem.ToString() + ".dll")
And I consume a Type from that assembly without any problem:
oXML = CType(oAssembly.CreateInstance(sBaseType + ".XlateContainer"), _
XlateBase.XlateContainer)
However, the problem occurs when I try to use a Type from this assembly from within another method like the one below:
oComboBox.DataSource = _
[Enum].GetValues(Type.GetType(sType + "+ItemEnum," + sAssemblyName))
sAssemblyName is the one I loaded using LoadFrom() actually. After it said it cannot find the assembly, I used AssemblyResolve event which solved my problem :Subscribing AssemblyResolve event :
AddHandler AppDomain.CurrentDomain.AssemblyResolve, _
AddressOf MyResolveEventHandler
Event Handler Method:
Private Shared Function MyResolveEventHandler(ByVal sender As Object, _
ByVal args As ResolveEventArgs) As Assembly
Return Assembly.LoadFrom("C:\PSIOBJ\" + args.Name + ".dll")
End Function
And I thought maybe the error occurs because it cannot find a dependent assembly defined in assembly manifest file I loaded using LoadFrom() already but when I checked the args.Name, I saw it was trying to load same assembly and after that it worked without any problem. So basically a type in the loaded assembly cannot be found before the event adding change.
My old code was using AppDomain.CurrentDomain.Load() and Assembly.Load() methods and they were working fine without the AssemblyResolve event. I was able to reach types in dynamically loaded Assembly from every where within the same AppDomain.
LoadFrom() can find dependencies automatically within the same requested assembly path and that couldn't be problem as everything this dll needs was there. So at first it looked like a AppDomain problem to me as it looks like it seems it can reach assemblies from Load context instead of LoadFrom context and I am now using LoadFrom context.But now it seems I should pass oAssembly instance evertwhere to use any type from the loaded assembly?Doesn't it load the assembly where I can reach it everywhere (same AppDomain) using simple Type.GetType(...) method?
I create a .net dll on the fly with codedom then I load it with Assembly.LoadFrom like this:
Private Sub Test()
Dim ASM As Assembly = Assembly.LoadFrom("test.dll")
'Do some stuff with the loaded assembly...
[code]....
I am working on a program that requires me to load 2 dll at runtime.My code is as shown below:
View 2 RepliesI am loading an assembly using LoadFrom method on a file located in another folder. The assembly is called VisualCronAPI.dll. The assembly that I load has references to another assembly (VisualCron.dll) which contains some general type definitions used in VisualCronAPI. The file VisualCron.dll resides in the same folder as isualCronAPI.dll.When using LoadFrom I see in the output that VisualCron.dll is loaded. I am able to retrieve all methods in VisualCronAPI that uses parameters from VisualCron.dll. I am able to see parameter values However, when trying to create a Type using the following code I get an exception:
Dim t As Type = assem.GetType("VisualCron.NetworkCredentialClass, true)
Exception: Could not load type 'VisualCron.NetworkCredentialClass' from assembly 'VisualCronAPI, Version=1.0.3.32487, Culture=neutral, PublicKeyToken=55f7a52402de1c04'.
[code].....
AFAIK, there're 3 methods to load an assembly into a AppDomain:
Assembly.Load()
Assembly.LoadFrom()
Assembly.LoadFile()
The LoadFrom() method takes the assembly filepath as its argument, but the filepath is merely providing the assembly identity information as a clue to the CLR. The LoadFrom() method still internally calls Load() with that identity information. So it is quite possible that LoadFrom(filepath) will load a totally different assembly from the one specified by the filepath. But the tame LoadFile() method will just load the assembly we specified.
I am wondering why do we need the LoadFrom() method? It adds nothing but confusion and pitfall. Is there any scenario that only LoadFrom() is applicable?
I'm trying to install Visual Basic Express edition 2010 on my windows Vista computer. The .net framework 4.0 is installed (or so the control panel says), but the visual basic installation fails every time it gets to "Microsoft Visual Basic 2010 Express," which is the first item to be installed. before installing, I uninstalled the .net framework 3.5 along with vb and c++ 2008 express editions.First, I get the following error message 7 times in a row: The installer has encountered an unexpected error installing this package. This may indicate a problem with this package.
The error code is 2908.Then, I get the following error message: Error 1935.An error occurred during the installation of assembly'msddslmp,version="10.0.0.0",publicKeyToken="b03f5f7f11d50a3a",processorArchitecture="MSIL",fileVersion="10.0.30319.1",culture="neutral". refer to Gelp and Support for more information. HRESULT: 0x8002802F.Then, the installer quits, with the screen: Setup could not install the following component:Microsoft Visual Basic 2010 Express - ENU?
I have two projects in a solution. One is a class library with my FTP, GPG and some other classes that get compiled into a dll call CBI.Utilities. The other is my main app which in a few places call the ftp class. I added the reference to the main solution by browing to the project from references under the main solution and now I get this error when I try to instantiate the ftp class.
"Could not load file or assembly 'CBI.Utilities, Version=1.0.2053.21021, Culture=neutral, PublicKeyToken=78bbe40a91a1660e' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)" Should I be making a reference to the DLL or to the projects. Either way I end up with a reference cbi.utilities.
I have been able to deploy my project on a CD with ClickOnce. Since updating to 3.5 SP1 the following error occurs when distributing the project on PC with Windows XP. Although it will load on another PC with Vista.Unable to install or run application. The application requires that assembly System Data Entity Version 3.5.0.0 be installed in the Global Assembly Cache (GAC) firstMy project property settings: Prerequisites, Windows Installer 3.1, Net Framework 3.5 SP1 both checked and Download Prerequisites from vender
View 2 Repliesi am writing a simple games client using an XNA 2.0 engine to play games. The games are written in dll files and the client uses the assembly.loadfrom method to read and execute the games accordingly...Now this all works fine on my computer and my laptop. However when i give it to my friend he gets this error and the dll doesnt load - "Unable to load one or more of the requested types. Retrieve the loader exceptions property for more information"
View 1 Repliesi am devloping app in vb.net and ms sql express compact 2005 .evrything works well. but when i used a third party dll file report viewer and one from skineengine system give me the error"assembly does not allow partialy trusted callers".
at first when i used report viewer it works,but letter it throw me error,same for skineengine. so that is the case of disallowing third party custom dll files.
i even set <Assembly: AllowPartiallyTrustedCallers()> in assemmbly.info
After finish my software, when I was try to run in other computer the error was: Don't possible to get the file or assembly 'ADODB, Version=7.0.3300.0, Culture=neutral, PublicKeyToken=b03f5f711d50a3a'...How the best solution for this error? Just to put the last adodb.dll in the application folder?
View 3 RepliesI've been having an error with my Visual Studio 2008 with .net framework 3.5 Sp1. I am creating a project, and it would run properly until after a while when I try debugging the project I would get a error message that says:
"Error while trying to run project: Could not load file or assembly 'Name_of_Project' or one of its dependencies. The module was expected to contain an assembly manifest."
Also the .exe file that it creates in the bindebug folder gives and error that says:
"The application failed to initialize properly (0xc000007b). Click OK to terminate the application."
These errors after a format of the machine would disappear for awhile but not indefinitely.
I am using a a bin serlization for saving pictureboxes. And then i copyed the code and put it into my game player so it could load them in. But i get a error: "Unable To Find Assembly 'GME Game-Maker-Extreme, version: 1.0.0.0, Culture=nutual, PublicKeyToken:Null"[code]...
View 4 RepliesQuote: Error while trying to run project: Could not load file or assembly WindowsApplication1' or one of its dependencies. The module was expected to contain an assembly manifest.
I don't know whats the cause of this.. Just asking if how can I load or find the missing Assembly or Dependencies? Because when I use this project w/ Setup & Deployment.. i encountering this error message:
Quote:Unable to find a version of the runtime to run this program
The executable is not working anymore
I have managed to get ASP.NET Membership mainly working with my SQL server.The problem i'm having is I get an error in VS2010 in my code behind file when attempting to create a user. I get a Red Exclamation mark appear on .CreateUser on the code below.
Error Message:Reference required to assembly 'System.Web.Security.ApplicationServices, Version=4.0.0.0, Culture=neutral,PublicKeyToken=31bf3856ad364e65' containing the type 'System.Web.Security.MembershipUser'. Add one to your project.
Code:
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
Try
Membership.CreateUser(r_user_name.Text, r_password.Text)
Label1.Text = "User created"
[code]....
I've tried adding the following to the web.config:Not sure if thats correct!! but i get an error message when I open the page:Parser Error Message: Could not load file or assembly 'System.Web.Security.MembershipUser, System.Web.ApplicationServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e65' or one of its dependencies. The given assembly name or codebase was invalid. (Exception from HRESULT: 0x80131047)
I have a web site that uses the both c# and vb.net in the app_code section. The different languages are separated into their own folder and correctly configured in the web.config.
<codeSubDirectories>
<add directoryName="BasicCode"/>
<add directoryName="CSharpCode"/>
</codeSubDirectories>
This works fine 95% of the time. In production using 2 load balanced servers I sporadically receive an error message along the lines of:
"Unable to find assembly
'App_SubCode_BasicCode.xxx,
Version=0.0.0.0, Culture=netural,
PublicKeyToken=null'.
The site is hosted in IIS7 and I think it has something to do with the name of the dll assigned during dynamic compilation. I do not see this problem in a single server environment. Could this be because when the session is balanced to the second server the dynamic compiled dll name is different?
I am trying to code an Auto clicker in visual basic and i am having issues that i believe involve user32.dll..
View 9 RepliesError while trying to run project: Could not load file or assembly 'WindowsApplication1' or one of its dependencies. The module was expected ro contain an assembly manifest.
View 3 RepliesVS2008 / XP Pro sp3 / .NET 3.5 I develop during the day on my office computer and bring home projects on a laptop to work on over the weekend. After working at home then at work, I have a conflict that I don't understand. When I build, all is normal but when I debug, I get "Found conflicts between different versions of the same dependent assembly." If I click on the warning message I also get "Do you want to fix these conflicts by adding binding redirect records in the app.config file"?Both computers have same O/S, same SP, same .NET, same VS. Only thing that could be different is particular O/S updates that have been installed on each machine. What causes this warning and where do I look for differences? I really hate to let mSoft keep changing my code every Saturday and Monday. I just don't trust it on Mondays.
View 7 RepliesI am using source safe to maintaine my code.Recently I copied my code to another machine.But everytime i build my project i am getting below error:Problem generating manifest. Could not load file or assembly
'D:WorkingFolderProjectSubFolderobjReleaseSubFolder.exe.manifest' or one of its dependencies. An attempt was made to load a program with an incorrect format.When i check above manifest file is empty (0k).I tried rebuilding (after cleaning solution) , also tried with copy pasting previus manifest file content.None of above solution worked.
it works on 32bit and framework 4 - error: could not load file or assembly Interop.XXXX.dll Steps to reproduce:Create a new VB.Net winform project on a 64 bit system with framework 4 drop windows media player control on form. builds and runs fine. project references has two interops to temporary directory under obj folder copy if necessary the two interops to the build output path and delete the old project references and add new ones pointing to the interops in the output path build and run, everything is fine.ste the target frameowrk to 3.5 and repeat the whole process. the build fails.This is just a simple example of what I am seeing on a much mor complex project. It happens with all interops, not just WMP.
View 4 Repliesim building an application i started it in VB 2008 and i upgraded to VB 2010
then i made some mods and tryed to run the application and then
i get this error
Error2Reference required to assembly 'System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' containing the type 'System.Windows.Forms.Form'. Add one to your project.C:UsersAdminDesktop
[Code].....
When running setup to install published program, the following message occurs: System Update Required: Unable to install or run the applicaiton. The application requires that asssembly CrystalDecisions.CrystalReports.Engine Version 10.2.3600.0 be install in the Global Assembly Cache (GAC) first. This version is listed in the references of the program and in my mind, be included in build. How do I get by this error?
View 23 RepliesWhen running setup to install published program, the following message occurs: System Update Required: Unable to install or run the applicaiton. The application requires that asssembly CrystalDecisions.CrystalReports.Engine Version 10.2.3600.0 be install in the Global Assembly Cache (GAC) first. This version is listed in the references of the program and in my mind, be included in build. How do I get by this error?
View 2 RepliesI have recently upgraded an VB6 project to vs2008. I was almost finished when the following error occured. Unable to emit assembly: Referenced assembly AxInterop.MSFlexGridLib does not have a strong name Prior to this error appering, I tested my app several times and it was fine. Only after publishing it did the error appear. I have tried all solutions I could find, but nothing helps. I have read [URL]
View 1 RepliesI receive this error as "Assembly Load Error" whenever adding a form or other object that has to be inherited.
"Unable to load assembly. Ensure that the file is a valid .net Framwork assembly"
A co-worker checked a very simple Visual Basic Visual Studio 2010 application into our version control system. When I checked it out and tried to build it I got the weird error below, which I am guessing has something to do with which .Net Framework the build is targetted towards and also which Framework I have installed.
------ Build started: Project: VB-DEER10, Configuration: Debug Any CPU ------
Build started 10/20/2010 3:35:57 PM.
C:WINDOWSMicrosoft.NETFrameworkv4.0.30319Microsoft.Common.targets(1558,9): warning MSB3283: Cannot find wrapper assembly for type library "Microsoft.StdFormat".
Build FAILED.
Time Elapsed 00:00:00.15
Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped
I made an app that connects to a mysql database to update a table. It works fine from my test machine, but if i deploy the app to another computer I get error: Unhandled Exception: System.IO.FileNotFoundException: Could not load file or assembly 'MySql.Data, Version=6.3.6.0 I'm going through google to find a solution, but nothing has stood out yet, just wondered if anyone has encountered this before and knows of a quick fix.
View 2 RepliesI cannot figure out how to get past this error. I have 1) Given the user "everyone" access to the entire directory that this dll is contained in 2) Deleted the dll and rebuilt the project 3) Deleted the Temporary ASP.NET files in the Windows Directory 4) Restarted IIS 5) Tried to change to a different user in IIS security including trying ASPNET. we are not using windows authentication. 6) Even copied that dll from other machines.
Here's the error. I have no clue at this point if it's code missing inside it or something else wrong with it or my setup. Other people on my team are using this dll ok. Could not load file or assembly 'Anthem' or one of its dependencies. Access is denied.
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. IO.FileLoadException: Could not load file or assembly 'Anthem' or one of its dependencies. Access is denied. [Code]