I've recreated the Northwind Spring/NHibernate example that comes with Spring.NET, but with MySQL rather than SQLServer. I've almost got it working I think, but I'm getting this when I try to use Hibernate to load something from the database
A first chance exception of type 'System.IO.FileNotFoundException'
occurred in mscorlib.dll NHibernate.Util.ReflectHelper:
ERROR lambda_method - Could not load type
MySql.Data.MySqlClient.MySqlCommand, MySql.Data.
System.IO.FileNotFoundException: Could not load file or assembly
'MySql.Data' or one of its dependencies.
The system cannot find the file specified.
File name: 'MySql.Data'
Every project (DAO, Service, Web) has a reference to the MySQL.Data DLL so I'm a bit unsure what's going on.
Can anyone help me please?
Make sure that MySQL.Data.dll actually got copied to the output folder. And that you are using right platform (x32 vs x64 bit) and right version of .NET (2,3,3.5 vs 4). If everyhing seems fine, enable Fusion Logging and take a look at this article:
For FileNotFoundException: At the bottom of the log will be the paths
that Fusion tried probing for this assembly. If this was a load by
path (as in Assembly.LoadFrom()), there will be just one path, and
your assembly will need to be there to be found. Otherwise, your
assembly will need to be on one of the probing paths listed or in the
GAC if it's to be found.
You may also get this exception if an unmanaged dependency or internal
module of the assembly failed to load. Try running depends.exe on the
file to verify that unmanaged dependencies can be loaded. Note that if
you re using ASP.NET, the PATH environment variable it's using may
differ from the one the command line uses. If all of them could be
loaded, try ildasm.exe on the file, double-click on "MANIFEST" and
look for ".file" entries. Each of those files will need to be in the
same directory as the manifest-containing file.
Related
We are working on a validation script for Kofax Capture 9.0 / 10.0 in VB.NET 3.5.
We know how to create a script using the Admin Module, and how to get it operational.
The problem is that we need to reference a dll, located on a remote machine. (GAC is no option) This dll holds abstract classes we need in each validation script.
Even when putting the dlls locally (copy local), the Validation Module (index.exe) immediately throws the "cannot find reference" exception, even though the project compiled perfectly.
I guess the basic question comes down to: where do we put the dlls, in order for the Validation Module to find them?
The simple answer is to put the dll in the same folder as the application because this is one of the places which .NET will probe when trying to find it. The Validation module is run from the Capture bin directory which will be something like "C:\Program Files (x86)\Kofax\CaptureSS\ServLib\Bin\". This would need to be done on each client using Validation.
If you have a more complicated scenario, you could look implementing the AppDomain.AssemblyResolve Event and using Assembly.LoadFile to get the assembly from a custom location, but the using the bin path is less complicated.
If you end up having further trouble, you can troubleshoot by using the Assembly Binding Log Viewer (Fuslogvw.exe) which can tell you more details about why the assembly failed to load and where .NET tried to search for it. Assembly loading can fail for reasons other than just the path.
For more detail on how .NET loads assemblies, see the following:
How the Runtime Locates Assemblies
Locating the Assembly through Codebases or Probing
We found a solution: add all library files as "links" to the project. (Add --> Existing File --> small arrow next to "Add" --> Add as Link)
This ensures the files are compiled when you build the project. The Kofax Validation Module can now find the files, whereas when referencing the file, it could not. Why it could not, remains a mystery...
ok, here's the situation.
I have two projects:
ASP.NET MVC 4 (references class library)
Class Library (Added RavenDB and Net Topology Suite from NuGet)
When I try to run 'SpatialGenerate' in any index, I get the following error:
Could not load file or assembly 'NetTopologySuite, Version=1.13.4693.18484, Culture=neutral, PublicKeyToken=f580a05016ebada1' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
I am using .net 4.5 of course and I'm doing this in VS 2012 on Windows 8. I have tried hosting this in IIS/IISexpress and the cassini server. I have checked that the file and it's related files are all present in the bin/debug directories and their versions are accurate. I also created a unit test that calls the queries via the index and I get the same error.
I have searched everywhere and I can't seem to find anything. Furthermore, once I was able to execute the index and everything worked, but I don't know why and can't make it happen again.
You need to use the RavenDB.Ebmedded package or add RavenDB.Database
I'm trying to use the Microsoft Shell Controls And Automation COM object library (C:\Windows\System32\shell32.dll) from within an SSIS Script Task to manipulate .zip archives.
Unfortunately, although I have successfully added the relevant Reference and the Script Task compiles OK. I'm using VB.NET, for what it's worth. I get the following runtime error as soon as I try to create any objects defined within the library:
Error: 0x1 at Archive File: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.IO.FileNotFoundException: Could not load file or assembly 'Interop.Shell32, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified.
File name: 'Interop.Shell32, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'
at ST_a2650b7f39504eaa8c80e37a6736d957.vbproj.ScriptMain.Main()
I thought the Interop DLL would all be taken care of for me - does anyone know what step am I missing?
SSIS needs all .dll references to be registered with the GAC, you are correct.
You have different options regarding installing this dll into the GAC:
Drag and drop the .dll into the %windir%\assembly\ folder.
Use the gacutil.exe you are thinking about using: Regarding installing into the GAC using the gacutil, there is alot of useful information here: Global_Assembly_Cache. Basically, if you have the .NET framework installed (you are using VB.NET so no problem there), you will have a gacutil.exe in your Microsoft.NET folder.
(What I normally use when all else fails) Create a windows MSI project in Visual Studio that automatically does all this for you, useful info here: How to install assembly in the GAC using MSI
If you install that .dll in the GAC and you are still having problems, another option is to actually create a separate visual studio project that contains your logic for manipulating the needed zip files build it and call its exe from SSIS using the Execute Process Task. You can pass arguments specified in the SSIS package. Not very elegant, but it gets the job done if you are keen on using SSIS.
UPDATE:
The solution in this question did the trick SSIS Script Task COMException / FileNotFoundException error. The problem was in adding a signed reference of the dll, this answer provides a good step-by-step workaround for adding a COM reference within the SSIS Script Task.
I have a project in which I have some C# classes which I am building using csc in my ant script. I have also have written some unit tests which I want to test with NUnit2.6, My test class and actual class refer to one DLL which is compiled with String Key Name (.snk), if I install thi DLL in my GAC (gacutil /i myDLL.dll) everything works fine. As soon as I uninstall this DLL from my gac I get following error for all the test during the build when I try to run my test using NUnit;
Test Error : fromJDynTest1
[exec] System.IO.FileNotFoundException : Could not load file or assembly 'myDLL, Version=5.1.0.0, Culture=neutral, PublicKeyToken=c0409b584f86b2d6' or one of its dependencies. The system cannot find the file specified.
[exec] at fromJDynTest1()
...
...
Does anyone know how to resolve this. Let me know if you need any other information.
Thanks
--
SJunejo
The code you are testing cannot see the assembly in question when you place it in the gac it can see the assembly. You need to ensure that the code you are testing has the assembly in the bin directory when compiled (perhaps copy local is set to false in your project on the assembly reference).
The reason I am sure it is not a dependency (which is mentioned in the message) is because the situation is resolved when the assembly is placed in the gac. This error is not likely caused because the assembly is strongly named.
Failing that the test code refers to the assembly and that test code either doesn't have a reference or has the same problem (not in its compiled directory).
Would help if you posted the actual test or structure of the project.
.net locates assemblies as follows:
Determines the correct assembly version by examining applicable configuration files, including the application configuration file, publisher policy file, and machine configuration file. If the configuration file is located on a remote machine, the runtime must locate and download the application configuration file first.
Checks whether the assembly name has been bound to before and, if so, uses the previously loaded assembly. If it failed before it will fail again now.
Checks the gac. If the assembly is found there, the runtime uses this assembly.
Probes for the assembly (if you open up a .csproj file in a text editor you will see hintpaths, which try and help .net find the assembly).
I'm working with a 3rd party assembly to implement something in our in-house software. I can make the refence and work with the library without a problem, but when I run the program to test it i'm getting this error
"Can't load file or assembly "assembly file" nor either of its dependencies. The system couldn't find the specified file" (i'm from Mexico, exception is in Spanish so i had to tanslate it, sorry for the poor translation)
I have given read and write permission to the file, the folder, and for all users and still wont load it.
I saw that the assembly has the PublicKeyToken=null, does that have any to do with that i cant load the assembly????
I already asked the people who developes this assembly, but i'm not getting any response and I really wanna get this project finished
If this is a web application, is the DLL in the bin folder? If it is a deskop application, is it in the same directory as the executable? If not, you may need to set the "Copy Local" attribute on the dll to true in Visual Studio.
Assembly Binding Log Viewer:
The Assembly Binding Log Viewer displays details for assembly binds. This information helps you diagnose why the .NET Framework cannot locate an assembly at run time.
Plus to what Chris said, you have to ensure that if the 3rd party dlls need any other dlls then they must be also in the bin directory, (you can check this by looking at the original directory of the 3rd party dlls and copy all dlls that come with it)