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Technical Troubleshooting Guide

This guide serves as a collection of technical issues/solutions commonly seen when trying to install PowerPointLabs.

If better solutions to any issue are found, or if there is a need for any clarification, please kindly let us know at pptlabs@comp.nus.edu.sg

Table of Issues

  1. Certificate Not Trusted
  2. VSTO Installer Config Error
  3. NET Framework Not Installed
  4. VSTO Opens as XML Error
  5. Missing PowerPointLabs Ribbon
  6. Corruption requiring renaming of VSTOInstaller.exe.config File
  7. Installation Failure caused by ClickOnce Cache
  8. Referenced Assembly Not Installed
  9. Corrupted Zip Installer
  10. Installation Error due to Preexisting Similar Application
  11. Error Loading Manifest from MahApps.Metro.dll

Certificate Not Trusted

Error Message

Alt text

Solution

  1. Try to download and install from the standalone version
  2. If standalone is not working, click OK for the batch file and install again
  3. Else, verify admin permission and install again

VSTO Installer Config Error

Error Message

Alt text

Solution

  1. Click the Windows Start button and paste <VSTO Folder Path> into the search box. Note that <VSTO Folder Path> would be stated in the error message, e.g. C:\Program Files (x86)\Common Files\Microsoft Shared\VSTO\10.0
  2. Enter and it should open up the VSTO folder
  3. Find a file named VSTOInstaller.exe.Config
  4. Rename the file to VSTOInstaller.exe.Config.old. Ignore Windows warning about the file becoming unusable
  5. Run PowerPointLabs installer again
  6. After installation has completed, reopen the VSTO folder and rename the file back to VSTOInstaller.exe.Config again

NET Framework Not Installed

Error Message

Alt text

Solution

  1. Follow these instructions to install Visual Studio Tools for Office runtime
  2. Install PowerPointLabs again

VSTO Opens as XML Error

Error

Add-in failed to install, and browswer opens up with the following image Alt text

Solution

  1. Follow these instructions to install Visual Studio Tools for Office runtime
  2. Install PowerPointLabs again

Missing PowerPointLabs Ribbon

Error

After installation, PowerPointLabs ribbon do not show even after launching PowerPoint

Solution

  1. Restart PowerPoint, else restart Windows and try again
  2. Try the following steps to re-activate add-in:
    1. In PowerPoint application, click File tab at the top left corner
    2. Click Options button
    3. Click Trust Center -> Trust Center Settings -> Add-ins
    4. Uncheck all boxes and click OK
    5. Under PowerPoint options, click Add-ins
    6. Beside Manage, click Go
    7. Check PowerPointLabs to enable it and click OK
    8. Restart PowerPoint

Corruption requiring renaming of VSTOInstaller.exe.config File

Error Message

Alt text

Solution

  1. Rename the file to any appropriate name
  2. Ensure that you have admin permissions and follow these instructions to re-install Visual Studio Tools for Office runtime
  3. Ensure that you right-click on the vstor_redist.exe (VSTO Installer) installation file and choose Run as Administrator before starting the installation

Installation Failure caused by ClickOnce Cache

Error Message

Alt text

Solution

  1. Follow these instructions to install Visual Studio Tools for Office runtime
  2. Open Start
  3. Type cmd and press Enter
  4. Paste the following command and press Enter: rundll32 %windir%\system32\dfshim.dll CleanOnlineAppCache
  5. Reinstall PowerPointLabs again

Referenced Assembly Not Installed

Error Message

Alt text

System.Runtime.InteropServices.COMException (0x800736B3): The referenced assembly is not installed on your system. (Exception from HRESULT: 0x800736B3)
 at Microsoft.VisualStudio.Tools.Applications.Deployment.ClickOnceAddInDeploymentManager.DownloadAddIn(TimeSpan timeout)
 at Microsoft.VisualStudio.Tools.Applications.Deployment.ClickOnceAddInDeploymentManager.InstallAddIn()

Solution

  1. Open Start
  2. Type cmd and press Enter
  3. Paste the following command and press Enter: rundll32 %windir%\system32\dfshim.dll CleanOnlineAppCache
  4. Reinstall PowerPointLabs
  5. Else, delete folder %LocalAppData%\Apps\2.0 and reinstall PowerPointLabs again

Corrupted Zip Installer

Error

Unable to unzip the installer and/or error message associated with operation of unzipping the installer

Solution

  1. Re-download the installer files and try installing again
  2. If multiple re-downloads fail, download the setup.exe directly here and re-install

Installation Error due to Preexisting Similar Application

Error Message

Alt text

Solution

  1. Go to File Explorer
  2. Type in %LocalAppData%\Apps\2.0 in the navigation bar and press Enter
  3. Using the search bar on the top-right corner, locate the Manifests folder
  4. Delete all files starting with powe... as shown in the below image Alt text

Error Loading Manifest from MahApps.Metro.dll

Error Message

Alt text

Solution

  1. Open Start
  2. Type cmd and press Enter
  3. Type in cd %LocalAppData%\Temp\Deployment\1HKX7LKW.XZD\HYEJO9YP.GNM
  4. Type in tasklist.exe /m MahApps.Metro.dll
  5. Determine which process is using the dll and end it if possible
  6. Else, temporarily disable any anti-virus software that may be preventing the use of the .dll file and then delete folder %LocalAppData%\Temp\Deployment, before reinstalling PowerPointLabs again