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.NET Forum / .NET Framework / Interop / September 2003Errors using Com Interop
I have a COM DLL that creates VB .NET objects. I use this COM object in my ASP files. The ASP files work fine on my system but will not work anywhere else. I get the error The assembly couldn't find some dependencies. The question is how do I deploy VB.NET assemblies that are set to register for COM INTEROP. This is what I am doing right now. I build everything on my machine. Copy all .NET assemblies and registered them using REGASM. Copy COM DLL and register it. Copy my WEB project and restart IIS. I have also tried to compile all .NET assemblies using a strong name and placing them into the GAC but still get the error. > The ASP files work fine on my system but will not work anywhere else. I > get the error > > The assembly couldn't find some dependencies. The question is how do I > deploy [snip] What are the assemblies that fail? Assemblies like Microsoft.VisualBasic.Compatibility.dll are not part of the .NET Framework redistributable, so you must make sure that they are part of your installer.  SignatureKevin Westhead Hi Kevin, I created an installer package for the .NET assemblies. Then I proceeded to do an installation to a different server. Register all DLLS with REGASM.exe and still get this error in the ASP file. NETInterop (0x80070002) File or assembly name CECC.Financial2000.Reports.Reports2000UI, or one of its dependencies, was not found. I also have an executable test project where I instantiate the COM DLL, which in turns calls the .NET objects, and as long as this executable is in the same directory as my .NET assemblies it works. However, if I placed it in a different directory I get the same error as I get in ASP. Another thing I have tried is to install VB 6.0, Visual Studio NET 2003 on this other server, and do a build. if I do this then the ASP works just like in my system. Do you have any other advice that I may try. Thanks, Lisa Sonneson > > The ASP files work fine on my system but will not work anywhere else. I > > get the error [quoted text clipped - 10 lines] > -- > Kevin Westhead [snip] > File or assembly name CECC.Financial2000.Reports.Reports2000UI, or one of > its dependencies, was not found. [snip] Have you tried looking at this assembly with ildasm.exe? The manifest section should list all of its dependencies, which appear as a bunch of ".assembly extern" statements; you can use this to check that all of the dependencies are accounted for. When you use regasm, are you using the /codebase option? SignatureKevin Westhead Kevin, Using the codebase parameter fix the problem. However, I am not using the strong name and REGASM is returning a warning. The reason why I don't use strong names is because at compile, it wants me to add a strong name to all dependencies. That is not a good solution for me because there are other developers that use some of these dependencies. anyway, if you had any suggestions on this let me know. Thanks again for the fix. Lisa > [snip] > [quoted text clipped - 12 lines] > -- > Kevin Westhead > Using the codebase parameter fix the problem. However, I am not using the > strong name and REGASM is returning a warning. The reason why I don't use > strong names is because at compile, it wants me to add a strong name to all > dependencies. That is not a good solution for me because there are other > developers that use some of these dependencies. anyway, if you had any > suggestions on this let me know. Thanks again for the fix. I would recommend signing all assemblies that you produce; you can use delay signing during development to avoid issues with other developers not having access to your key-pair file. If the issue is that you have dependencies on 3rd party COM type libraries, then your options are limited: 1. Plead with the original author to provide a primary interop assembly. 2. Use tlbimp.exe to create a signed (but not primary) interop assembly for the type library. 3. Ship unsigned assemblies, although this means you cannot guarantee their integrity. SignatureKevin Westhead I tried using installer package but I get the error still. NETInterop (0x80070002) File or assembly name CECC.Financial2000.Reports.Reports2000UI, or one of its dependencies, was not found. > > The ASP files work fine on my system but will not work anywhere else. I > > get the error [quoted text clipped - 10 lines] > -- > Kevin Westhead I used the installer package. Even though it picked up more dependencies that I had in the bin directory, I am still getting the same error. NETInterop (0x80070002) File or assembly name CECC.Financial2000.Reports.Reports2000UI, or one of its dependencies, was not found. Thanks, Lisa Sonneson > > The ASP files work fine on my system but will not work anywhere else. I > > get the error [quoted text clipped - 10 lines] > -- > Kevin Westhead
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