I am working with a precompiled ASP.net website. I have most of the *.aspx.vb files, but I am missing some of the library files, and only have the DLLs. Can I still selectively compile aspx.vb files? When I just hit build, It errors with 'This application is already precompiled'
If you have DLLs, then most likely those are external assemblies which are not part of the project, to which the source files belong. So if you have a project file, try compiling it and see if it reports missing source (.vb) files. Most likely compiler will give you hints regarding particular problems.
If you don't have a project file, the situation becomes more complicated. You might need to use some decompiler tool (9rays.net decompiler is a good one) to restore the source files from compiled DLL (note - main project DLL, not those library DLLs) and analyze what's missing and what was included.
Related
So I have an ASP.NET VB website that references several other projects (their DLLS are just put in the site's bin folder). I need to update a small piece of code in one of the projects, which I have done and it builds fine. However, when I copy over the new DLL to the website's bin folder it fails to build, and all the Imports statements say "BC40056: Namespace or type specified in the Imports xxx doesn't contain any public member or cannot be found", which results in a ton of errors like "is not defined" . There is no reference to the updated DLL in the website project's properties, but if I put the old version back it's all fine.
The project was copied from a server and the vbproj file contained references to other DLLs, but the HintPaths were a mixture of mapped drives and ..\..\..\. I've updated these so that they're all the full server location path, but this has made no difference. I tried adding the project to the same solution as the website and added a reference to the project instead, but this also made no difference.
I've done plenty of Googling but have yet to find a solution. Any help would be very welcome!
A few things
You don't want to just "place" the .dll's in the bin folder. One big reason is that when you do a "clean" project, the bin folder is deleted. So, anytime you do a clean project, what is in the bin folder is cleaned out. And a developer will often do a clean project if some kind of problem is occuring.
I would place those files in some folder in the project. (create a folder, or if its only one or two .dll's, then place them in the root of the project). At compile time, the .dll's will be copied to the bin folder. And if you using web deployment, then you can choose to have the .dll's all combined into one .dll. So, once again, you can see it makes little sense to place the .dll's in the bin folder, since during a build, they will not be required, and as noted, the resulting bin folder can and will as a "regular" development process be re-created (emptied out). I seen a good number of projects in which the developer did place the .dll in the bin folder (because they did not know where else to place the .dll's, and that was seemly the only place that the application worked. But, during a web build + deployment to the production server, those .dll's can be left behind - they not be copied to the final "deployment" build. (I'm basic saying don't do this!!).
You can also consider just creating folder called "packages" in the root. This is where all the nuget packages are placed. So, some folder for those .dll's is the idea here.
The other big issue? Well, just dropping some .dll's in some place does NOT give you the developer all the methods and properties of those .dll's when writing code (we are assuming these are managed code - not win x32 .dll's).
So, without adding a reference to that assembly, then I can't see how the project will even compile correctly, and how syntax checking, and general use of the assembly will ever work during the development process (so VERY perplexed that you don't have references to those .dll's - that as a general rule can't work).
Now, to use the assemblies? Yes, you want to add the .dll as a reference to the project.
So, in references, add the .dll as a reference.
And then in the property sheet for the refence? Make sure you have the "copy local" set = true.
eg this:
So, above is GhostScript.net reference. (a open source library to manipulate pdf's).
Note the long path name for the .dll location. But, MOST important is the copy local setting = true. This means during a compile and build (which as noted can clean out the bin folder), then the .dll will be output to the final build in the bin folder.
So, I can't see how you can compile anything without an actual reference to the .dll. That is quite much assumed and a given - else I see no way how your project can compile under any circumstances.
So, referance the .dll, and that should allow use of the class(s) and objects, and enable your code to compile. And make sure the copy local = true, as that is the process that will copy + place the .dll in the final output (bin) folder when you compile.
So it turns out that the project for the DLL I was trying to reference had the Target CPU set to x64. Changing this this to 'AnyCPU' then allowed me to reference it.
This post gave me the answer: Could not load file or assembly ... An attempt was made to load a program with an incorrect format (System.BadImageFormatException)
When I try to import a .dll (cplex1280) into my asp.net project references, I get an error saying Please make sure that the file is accessible, and that it is a valid assembly of COM componet.
The weird thing is that I can build my application even though this dll isn't referenced. For people who are familiar with CPLEX, I successfully included the ILOG.CPLEX.dll and ILOG.Concert.dll
Currently the directory for my project is setup as ProjFolder/Myproj. There is a folder ProjFolder/bin and a folder ProjFolder/myproj/bin where I included the cplex1280.dll file. There is also a copy of the cplex1280.dll in one of my Program Files folder. I tried to add a reference of this dll from each of these locations, but I keep getting the same error. When I looked up this issue, I saw two solutions that people recommended. Here is the post that I used for help.
One solution was trying to use
regsvr32 "foo.dll"
on the file. When I try this, I get an error saying
The module "cplex1280.dll" was loaded but the entry-point DllRegisterServer was not found. make sure that "cplex1280" is a valid DLL or OCX file and then try again.
The other thing I tried using was dll import
[DllImport("cplex1280.dll"]
I was a little confused by the Microsoft documentation. It doesn't specify what folder to put the dll in and usually there is a function definition after the import statement, but my program uses multiple functions from this dll.
If someone could explain this import method in more depth I would appreciate it.
As mentioned in the comments, cplex1280.dll is a Native DLL. It is a shared library for the CPLEX C Callable Library. For your .NET application, you should only add references to ILOG.CPLEX.dll and ILOG.Concert.dll (see the readmeWindows.html file in the directory where you installed CPLEX).
Dropping the CPLEX dll's into your windows/system32 directory is not recommended (see DLL Hell). Instead, when you deploy your application, you either need to make sure that the directory where cplex1280.dll is located is included in the PATH environment variable or that it lives in the same directory as your ASP.NET executables. This gives you more flexibility when you have to support different products that use different versions of CPLEX (or even multiple releases of the same product).
In our ASP.Net web project we seem to have some .refresh files associated with some of the 3rd party Dlls we're using. Any idea what they are and how/when they are created?
These files give the path to the DLL in question to tell Visual Studio where to find it (you can check this if you open them in a text editor). They will be created each time you add a new reference to the project.
They normally appear when you are using a project type that does not create a standard Visual Studio project file, as normally paths to referenced DLLs would go in there.
From here:
In an ASP.NET project, adding a file-based reference will add a .refresh file in the Bin folder. When the project is under source control, this file is then added to source control. *.dll.refresh files that litter the bin directory. Every time you add an external reference, you'll find a dll.refresh file right next to it. These dll.refresh files are an exception to the rule, and they should go into source control. Its the only way your web project will know where its references live.
Some information about the refresh files after trial and error. These experiments were done with Visual Studio 2012. The references were added to a C# asp.net web project.
As was discussed, adding a reference to an assembly through browse adds a .refresh file. However, if there are additional dependent DLL's on the explicitly added DLL in the directory that you add from, the dependents are implicitly added as well, but without .refresh files! So for example, I add a reference to "MyAssembly.dll" I will get also "MyAssembly.dll.refresh". But if there is an assembly "MyDependentAssembly.dll" that "MyAssembly.dll" depends on I will not get a "MyDependentAssembly.dll.refresh". So what happens is that the one assembly is refreshed but not its dependents! You must add the DLLs one at a time in reverse order of dependency and then things will work better.
Some other things to be careful of.
Adding "MyAssembly.dll" will also add "MyAssembly.pdb" if it is present. Also "MyAssembly.xml" will be added to the references if it is present. Those two files will refresh too when "MyAssembly.dll.refresh" is present.
But, when does Visual Studio decide to look for refresh files? Now remember, in a web project, the project file does not keep track of referenced DLL's specifically. You will not find the DLL's listed in the project file only project dependencies. So when does the refresh happen?
The answer to when refresh happens is during a build when the referenced assembly has to be loaded. That means, though that building a prebuilt updateable website may not grab all of the DLLs. I kept having a DLL that would not refresh and then I realized it was being used only inside of a .ascx file. Unchecking the "Allow precompiled site to be updateable" checkbox in the MSBuild Options project page fixed that problem for me.
Still if you add referenced DLLs that are loaded through reflection in your code, they will not be updated through a reference. You will have to use build events to copy them into the bin directory.
We're in the middle of changing from VSS to Subversion and we have a website project on our Subversion Repo. We've removed the Bin folder as it causes all kinds of chaotic tree conflicts since our development solution contains some Class Library projects the Website project depends on (set up as project references in our solution). We also have a couple of 3rd party library DLLs in the Website's Bin folder too.
The next phase of our project involves a designer modifying themes to our website. I'd like for him to be able to just open the Website project in VS 2005, modify the CSS files he needs to on his working copy, and test his files on his localhost. He'll need the most up-to-date DLL files for him to be able to do this.
Is there anyway to add the Bin folder DLLs to subversion, and configure TortoiseSVN or subversion so that we can commit our newest DLLs (project dependencies in developer's solution files) but ignore them on update (per client I guess)? It would also be handy to have our 3rd party website dependencies on Subversion too.
You should not put 3rd-party assemblies into the bin folder. In fact, you should assume that the bin folder will be emptied before each build. It is a place to put the output from a build, not a place to put inputs.
Put these binaries in to some other folder, maybe "3rdPartyAssemblies". Use a file reference to these files, and they'll be copied into the bin folder, as outputs.
Would it not be possible to structure it like this:
Trunk/
WebApp/
ClassLibrary1/
ClassLibrary2/
ClassLibrary3/
3rdPartyDlls/
build.bat
The web app is what pulls all the class libraries and the 3rd party dlls in to the WebApp's Bin folder (All of these will be referenced via relative links). You can then setup TortoiseSvn to call the build.bat file on update through client side hooks. You would also setup IIS on the designer's machine to point to the WebApp directory.
As other users have pointed out, you could use svn externals to pull in those enterprise wide class libraries.
What most everybody else has said regarding '3rdParty' is correct.
You may also consider svn:externals to pull in related directories including a '3rdParty' assemblies directory, or even output directories from builds that can be triggered by a check in to assure currency.
The approach we've taken is, rather than having the Libraries in the same solution, they have separate solutions and we (well, our Build server) compiles them and checks the compiled DLLs into sourcecontrol under "Dependencies" which is always mapped to C:\Dependencies on all developers machines. We then use file references to this folder from the website project.
Thi way you can give your designer the Website project along with a copy of C:\Dependencies and they'll be none-the-wiser =)
We don't sourcecontrol the bin-folder since it would be updated everytime you run a compile. Instead, we keep references to 3rd part libs in a separete folder that is under version control, that we have references to in our project.
With this setup and using "copy local = true", they are automatically added into bin upon compilation.
Secondly, we will only commit new binary files when we update the 3rd-part binaries.
This approach is also possible to do for your internal dlls, so that your designer can just compile his visual-studio-solution so taht any relevant dlls would be put into his bin-folder and hence, create a functional site locally on his machine.
I'm using a deploy project to deploy my ASP.net web application.
When I build the deploy project, all the .compiled files are re-created.
Do I need to FTP them to the production web server?
If I do a small change do I need to copy all the web site again?
From my own research, the .compiled files must be copied to the production server, but not needed to copied every time
from Rick Strahl excellent blog:
The output from the merge utilitity
can combine all markup and CodeBeside
code into a single assembly, but you
will still end up with the .compiled
files which are required for ASP.NET
to associate the page requests with a
specific class contained in the
assembly. However, because the file
names generated are fixed you don’t
need to update these files unless you
add or remove pages. In effect this
means that in most situations you can
simply update the single assembly to
update your Web.
Source
You can get rid of the .compiled files by using the aspnet_merge tool with the -r option.
Removes the .compiled files for the main code assembly (code in the App_Code folder). Do not use this option if your application contains an explicit type reference to the main code assembly.
There's nothing special about .compiled files: it's just the actual file with a .compiled extension on the end so that nothing happens if you accidentally double click it.
But if you're seeing .compiled files, you're publishing your app in such a way that it expects to be formally installed- it's not enough to just copy things to production. You have to run the installer program too. If this is an app you know is already deployed, that seems a bit unnecessary.