I have developed an opencv application using windows form and C#.
The opencv packages I got from the Nuget packages manager (EMGU.CV and ZedGraph).
Everything works fine in visual studio, but when I publish the project and install the program in my machine, it throws an exception when I click a button that performs some opencv operations.
I guess the opencv packages didn't come along with the final published project, so how do I do to make it export when publishing, I thought it would be an automated process, I have already used other nuget packages and I had no problem with it.
What Am I missing here?
After some days waiting for an answer, and looking for solutions, I've figured it out how to solve this issue.
I came across this question:The type initializer for 'Emgu.CV.CvInvoke' threw an exception
Which led me to this: http://www.emgu.com/wiki/index.php/Download_And_Installation#The_type_initializer_for_.27Emgu.CV.CvInvoke.27_threw_an_exception.
More precisely this part:
First of all, I don't know why the compilation runs fine inside visual studio enviroment and why not when publishing the project as it is. For some reason, the Nuget packges are not enough for publishing the project, you need to add the .dll files manually yourself (not sure why this occurs once I have worked with Nuget packages before and this workaround was not necessary).
To find the .dll files you go to your project directory, then you go to bin\Debug\x64 or bin\Debug\x86 (depends on which operating system you are targetting - 32 bits or 64 bits -in my case I added all .dll files from x86 folder, I guess you can add from both folders if in doubt).
The Debug folder of your project is build every time you run the project inside Visual Studio enviroment, so if your Debug folder is empty then you just need to run the project one time to be able to find the auto generated files inside that folder. Just a side note here, you can use either the Debug or the Release folder inside bin, just remember to check if you compiled the project in Debug mode for Debug folder, or Release mode for Release folder, otherwise the desired folder will be empty, as explained before, I found no differences between the files generated, I added the dll files from Debug\x86.
Once you have located the .dll files, you go to Visual Studio, right click on the project in the Solution Explorer tab, then Add ---> Existing Item.
Go to the folder where the .dll files are, select all and click Add.
Once you have done this, the .dll file will be shown in the Solution Explorer.
Right click on each .dll file added in the Solution Explorer, and open the properties tab by clicking Properties. On the Properties tab, go to option Copy to Directory and change the field to Copy Always (the emgu documentation link provided above states to use the option "Copy if newer", but to make sure I chose "Copy always", it worked fine for me). Repeat the process for all .dll files added.
Now you are ready to go for publishing the project as it is,just remember doing this every time before publishing your project to see if no .dll files are missing, so once you got to final version of your program, run it, and then make sure to check the .dll files, it might have new ones to add or to remove.
I am trying to open a existing project in visual studio 2010 using
new->project from existing code
and selecting visual c# as the language. When I run it, I get errors. Later I heard from the person who created the project that I have to add few references, which are present in the references folder in the project itself. It comes in the side window - solution explorer.
However, when I right click on that folder to add as references, that option is 'greyed', or disabled. How Can I correct this?
The DLLs named freeglut.dll and glut32.dll are not COM or NET components. You cannot add them as references to your project (You have 4 solutions in your archive, I have choosen the one named fwa_annimate but I think the problem is the same).
The DLL named Tao.FreeGlut.dll needs these files in the same directory where you application run to work. So the easiest way to resolve your problem is to select the two DLLs inside Visual Studio and change the property Copy to Output Directory from Copy Never to Copy Always.
In this way, when you start to debug your app, the VS IDE will copy the two files to the BIN\DEBUG or BIN\RELEASE directory where you app runs when launched inside the VS IDE.
Of course, you need to deploy all these file when you distribute your application.
(By the way, I have no idea what is supposed to do)
In visual studio 2010, when publishing a website, it seems that empty folders are not being published.
I am quite sure that this behavior were introduced in vs2010. I cant find it documented anywhere, not sure if I should call it a feature or a bug... Anyway, is it possible to revert to the old behavior as I wish to keep my folder structure on the production server.
This is actually a limitation of vs2010 as reported on the Microsoft connect site
http://vishaljoshi.blogspot.com/2007/11/wdp-does-not-publish-empty-folders.html
http://connect.microsoft.com/VisualStudio/feedback/details/546356/publish-deploy-does-not-deploy-empty-folders
There was a bug report to Microsoft about this and they said that they would not fix it.
http://connect.microsoft.com/VisualStudio/feedback/details/546356/publish-deploy-does-not-deploy-empty-folders
Too bad. Because it used to work in Visual Studio 2008.
Add a dummy file like dummy.txt to the directory and then the directory will be created.
Note that it is not necessary to actually deploy the dummy file. It only needs to exist as part of the project in the build environment.
The Empty folder doesn't have any memory value so if you want to add your folder's into your published folder then simply add any item(e.g. text File) into it and set the "Copy to output directory" = Copy always or Copy if Newer this will resolve you problem
I am working in a Web Project in Visual Studio 2008. When I hit F12 (or right-click and select Go To Definition) Visual Studio is consistently going to the Metadata file instead of going to the source.
Some Points:
All the source code is C#, there is no VB.Net
All the projects are in the same solution
Everything is a project reference as opposed to a file reference (checked and double-checked)
I have tried the Clean/Rebuild Solution approach (even to the point of clearing out the Temp directory, Temporary ASP.NET Files directory, etc).
Has anyone else seen this behavior and/or know how to fix it?
Well, another developer found the answer. The specific project we had an issue with was originally added as a file reference, then removed and added as a Project Reference. Visual Studio however, kept both in the csproj file for the web site, causing the issue. He went in and manually edited the csproj file to remove the file reference to the problem project and all is fixed now
It happens when you don't add reference as a project but point to a dll or exe using Browse tab in Add Reference dialog. If you add reference using Projects tab you should go directly to the source code when you select Go To Definition.
However, if you install ReSharper, you'll go to source code even if you added your reference to a dll/exe using Browse tab.
Looks like it needs to be setup in Resharper as well. My Visual Studio does not navigate to .NET Framework source code until I enable it in Resharper.
1. close your solution.
2. delete hidden <name of the solution>.suo file in folder where your solution's <name of the solution>.sln file exists.
3. open your solution.
4. rebuild your solution.
For those using VS 2017 (I'm at version 15.3.4 at this moment) here are the simple steps:
Open your solution in Windows Explorer and close down Visual Studio
In the explorer menu, select View and ensure that the "Hidden items" checkbox is marked
Navigate to the subfolder .vs\[your solution name]\v15
Delete the .suo file
Restart VS and build your solution
That fixed it for me: F12 opened the actual source file, not the "from metadata" version.
Visual studio often suffer from a problem of going to metadata rather than your project if you shift location where you are building the project, ie you may have several versions to test things out.
Simply delete the reference and immediately add it back and everything will be sorted out.
The marked solution does not always work. You must make sure that the referenced project GUID in the project files is the correct GUID for the project you are trying to reference. Visual Studio does allow them to get out of synch in some circumstances. You can get the project GUID from the project file with a text editor.
So if project A reference project B. Open up project B.csproj in text editor, copy out project GUID from the tag. Then open up project A.csproj in text editor, and make sure that you are using the correct GUID. Search for project name "B" in this case. It should be at . Replace the GUID in the tag with the correct one. Save and reload.
Of course also make sure file based references to your projects are removed. You only want project references.
I've kill all VS instances, deleted the SUO, launch sln and it worked for me...
Remove the reference dll, Build (will get errors), ADD THE reference (you removed) then build again ... F12 on your function should then work (worked for me).
#1
Check "View - Object Browser" and if you see more than one assembly with the same name - that's why your getting this error.
For us it was a bug in VS 2019:
If you have ASP.NET "Razor helpers" in App_Code folder the Visual Studio 2019 interprets that as a different assembly but with the same name, that hides the actual assembly.
There's no fix for that other than rewrite those helpers to partial views or HTML helpers (you will have to do that anyway if you plan migrating to .NET Core).
See this workaround on MS's site and please upvote the bug there so MS fixes it
https://developercommunity.visualstudio.com/solutions/1008795/view.html (please upvote)
#2
Another reason why same assembly can be loaded twice in the object browser is if you have a unit-test project that starts iis-express process and never kills it properly.
I figured out how to solve my problem from this post, maybe it will also work for some of you.
I followed these steps:
Close the solution.
Delete the intellisense database file for the solution: .ncb
Open the solution.
Rebuild the solution.
(I believe either step 3 or 4 regenerates the intellisense database file when it is missing)
Intellisense, "go to defintion" and "find all references" should be working again.
In my case, (using Visual Studio Professional 2015), when I had disabled the XAML designer, the F12 stopped working.
As soon as I revert the changes, and restart Visual Studio, the F12 worked again.
Checked the pattern multiple times to confirm and then posted. Hope it helps someone.
Symptom:
Visual Studio 2010 Ultimate was repeatedly failing to find references to functions, #defines, includes, etc when using the "Go To Definition" or "Go To Declaration" or "Find All References" features - oddly Intellisense was working.
Fix:
Close Visual Studio
Delete (rename if you want to be conservative) the solution .sdf file
Reopen Visual Studio
The .sdf file will automatically be rebuilt by parsing the include files in your solution
For me, the GUID solution didn't work and I couldn't find my .ncb file. (Or maybe I'm lazy and didn't look hard enough, but that's not important.) Rebuilding and restarting visual studio didn't help either.
What I did was close visual studio and delete the .dll and .pdb being referenced in the top of the Meta Data file that my intellisense kept linking to. In my case it meant I deleted my .dll and it's .pdb file from Utilities/bin/Release. (Utilities is the name of the .dll project I was having issues with.) Then I restarted visual studio and rebuilt the .dll then the whole solution. No more problems!
Just found another cause. I upgraded my web project to 4.0 but left the class libraries at 2.0. At that point all the class libraries in my solution were treated as file references from my web project. Might help someone else...
I faced the same issue and one of colleagues gave me the following solution and it worked!
If none of the above works for you,
Remove all the references and add them back (make sure the path is
correct)
Go to Solution properties, and recheck the Project
Dependencies of all projects. Make sure the project that you'll be
using is added as a dependent in the project that you are working
on.
I did all suggested steps but nothing has been changed then
finally
right click and add reference menu, project tab
simply unselected the reference project.
save the solution.
select the same project.
Rebuild the solution.
Problem sorted. Hope this will help to some one.
Below steps worked for me.
Go to .csproj file
Open it in Notepad Go to line where dll is referred.<Reference Include="">
Delete the line
<SpecificVersion>False</SpecificVersion>
or
<SpecificVersion>True</SpecificVersion>
After deleting dll files from Visual Studio first and adding them back manually from Solution Explorer --> Website --> Add --> Reference and enabling 32-bit Applications in IIS fixed it for me.
VS2017 VB.Net Windows 10 Pro - I use an assembly names "SharedCollection" which includes a VB Module named MyGlobals. One of the globals is a FileVersion. References showed metadata and the Windows Service that referenced it had an outdated setting. I had tried some of the SUO remedies above and none of them worked.
This Worked
I deleted and recreated the project reference for ShareCollection in References.
click on web site menu from VS.
Add reference...
Click on project tab from dialog box
Select ddl
Click on ok button
In my case, I had just recently changed
<mvcBuildViews>
to "true" in my site's .csproj file (to find compile errors in my Razor view files: http://forums.asp.net/t/1909113.aspx?How+to+have+Visual+Studio+2012+returned+compile+errors+on+razor+syntax+error+in+asp+net+web+page+2+ ), and when I then built I was getting errors from my within my site's /obj/Debug/ directory. From any of those files (which were out-of-date), right-clicking and selecting "Go To Definition" would give me the [metadata] version.
So for me, none of the solutions here worked, because I wasn't starting from a file that was actually in my project. Deleted that entire /obj/Debug/ directory, the errors went away, and from any normal file I can correctly use Go To Definition.
I just ran into this problem on VS 2013. Something I could (did?) not isolate was changing the GUID in the CSPROJ file. Since the CSPROJ files are checked into SVN, I could not simply change the GUID on my local dev. Instead, I was constantly SVN reverting the local change each time it happened.
First, I had to solve the changing GUID problem.
Revert the CSPROJ to the checked-in version.
Open the CSPROJ via a text editor, NOT VS.
Extract value from the pristine CSPROJ file.
{B1234567-5123-4AAE-FE43-8465767788ED}
Open the SLN file via a text editor, NOT VS.
Locate the Project reference in the solution.
Project("{FAE12345-3210-1357-B3EB-00CA4F396F7C}") = "Some.Project", "....\assemblies\Some.Project\Some.Project.csproj", "{B7654321-5321-4AAE-FE3D-ED20900088ED}"
EndProject
The first GUID listed is the Solution GUID. For every project referenced in your SLN, you should see this value repeated at the first argument. The GUID following the .csproj is the one you want to replace with the pristine GUID.
This should solve the first problem, but the "Go to Definition" landing in meta data is not solved. In our SLN file, there is a master project (our web site), so its entry in the SLN file should contain a ProjectSection entry with multiple GUID values. Here is an example:
ProjectSection(ProjectDependencies) = postProject
{AC50D230-24C4-4DCA-BAAD-355E6AF5EFBD} = {AC50D230-24C4-4DCA-BAAD-355E6AF5EFBD}
EndProjectSection
Notice the missing GUID in this collection is the one from my pristine project.
Add the missing GUID as the last entry between ProjectSection and EndProjectSection. The format appears to be per-line, and it is {GUID} = {GUID}.
Save the file.
Open your solution.
Right-click a reference in the newly-added project and "Go to Definition."
I had a circular reference between the two projects involved (which is a no-no). Had to restructure my code a bit in order to solve it as both projects were truly dependant on each other. Removing one of the references solved the intellisense problem. It was logically flawed and I probably wouldn't have noticed without this error!
This one worked for me:
Right click the dll in the reference folder in your solution
explorer
Remove dll file
Right click the Reference folder, then
Add reference to the dll file again
This can happen if you're trying to jump to the definition in a project that has been unloaded (Unavailable). Right-click the unloaded project and select "Reload Project".
I modified the .csproj file and in the Reference -> HinPath changed obj to bin and it solved the problem.
I had a variation of this issue, where when I loaded my solution my referencing project had errors until I compiled the project it was referencing. At that point the errors disappeared but F12 took me to metadata.
The issue was a dependency in the project being referenced that conflicted with a dependency in the referencing project. I manually removed dependencies from the project being referenced until one of them resolved the errors in the referencing project. After that I was able to F12 to the actual code, and the project would load without errors.
If anyone knows exactly why this happens I'm interested to know in the comments.
This little trick solved it for me - unload the referencing project from the solution and then just reload it
Best guess is that you don't have debug information. Maybe you have multiple copies of your assembly on disk and it doesn't have the .pdb file with it.
Do a search for your assembly names from your projects and delete them all and rebuild.