Error message Unable to install or run the application The application requires stdole Version 7 0 3300 0 in the GAC

Question

When one user tries to run the application  our ClickOnce application is reporting      Unable to install or run the application  The application requires stdole Version 7 0 3300 0 in the GAC    It s interesting to note that the GAC  C  Windows assembly  does not have stdole installed in it  How do I get it there   We are using  NET 3 5  and it has been installed on this computer

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My solution  I opened the references folder in Solution Explorer  showing all files   and for each assembly that the installation complained about  the name of the assembly may not be exactly the same as the filename of the assembly - within object explorer  but easy enough to figure out   I changed the Copy Local to True  I ended up needing to do that with each Microsoft Office COM-related assembly

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To H2oRider -- does your application access the Oracle dll in the GAC  What I recommend you do is this  Add the dll to your project and set the build action to  content  and set  copy to output directory  to  copy always     Then delete your reference s  to the dll in the GAC  Re-add the reference  but this time drill down to the one you just added to your project    Now publish it  The application will look for the dll locally  and the dll is included in the deployment so it will find it   If this doesn t work  then it might be that you can not use that dll if included locally rather than in the GAC  This is true of some assemblies  like the Office PIAs  In that case  the only way to deploy it is to wrap it in a setup  amp  deployment package and use the Bootstrapper Manifest Generator to turn it into a prerequisite you can publish with ClickOnce deployment

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I my case  I solved this issue going to the Publish tab in the project properties and then select the Application Files button  Then just   Note  Before you apply this solution  make sure that you have already  as I did   checked all your solution s projects and found no references to stdole dll assembly   1 - Located stdole dll file   2 - Changed its Publish status to Exclude  3 - After that you need to republish your application   This issue happened on a Visual Studio 2012  after its migration from Visual Studio 2010   Hope it helps

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So it turns out that the  NET files were copied to C  Program Files Microsoft NET Primary Interop Assemblies   However  they were never registered in the GAC   I ended up manually dragging the files in C  Program Files Microsoft NET Primary Interop Assemblies to C  windows assembly and the application worked on that problem machine  You could also do this programmatically with Gacutil   So it seems that something happened to  NET during the install  but this seems to correct the problem  I hope that helps someone else out

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We had the same issue with our ClickOnce application that uses Interop with Microsoft Office  It happened only on a few computers in the company   The best fix we found out was to modify MS Office installation on problematic computers  through the Programs and Features panel  and ensure that   NET programmability feature   not sure of the name of the component - our Microsoft Office versions are not English  was installed for each of the MS Office applications  Excel  Word  Outlook  etc    This seems to not be included in a default install   Then the problem with stdole dll was fixed   I hope this might help

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Well  you can t install to the GAC using ClickOnce  This is documented in this MSDN article

User · Answer

Interesting  I didn t have any references to stdole in my project  but I had a user still receiving the error   I had to add the reference  then change the setting to include   Hopefully that will work

User · Answer

Try going to the Publish tab in the project properties and then select the Application Files button  Then set the following properties    File Name of stdole dll Publish status to Include Download Group to Required   After that you need to republish your application    If the reference has CopyLocal true  then the reference will be published with the application  If the reference has CopyLocal false then the reference will be marked as a prerequisite  This means the assembly must be installed in the client s GAC before the ClickOnce application will install   There are some assemblies that are installed into the GAC because of the Visual Studio install  not the  NET Framework install  This could be your situation

User · Answer

Check if you re really using EnvDTE reference  If not  remove it and recompile

User · Answer

I had the same problem with a ClickOnce deployment   I solved the problem by going to the  Publish  tab in the project properties and then selecting the  Application Files  button   I then selected the options     File Name  of  stdole dll   Publish status  to  Include  and  Download Group  to  Required     This fixed my problem when I re-published   I hope this help you  D

[.net] Error message "Unable to install or run the application. The application requires stdole Version 7.0.3300.0 in the GAC"

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