Error While Installing Or Upgrading Studio

While upgrading Studio, the installation reaches up to Registering Product and right after that, the process rolled back automatically and displayed the error "Error while installation Studio" .

  1. Verify the Install logs.
  2. From the logs, observe the following error( or something similar)

MSI (s) (AC:78) [15:01:49:548]: WIN64DUALFOLDERS: Substitution in 'C:\Program Files (x86)\UiPath\Studio\ProjectTemplates\Business Project\RuntimeExecutionError_Template.html' folder had been blocked by the 1 mask argument (the folder pair's iSwapAttrib member = 0).

  1. The above error states OS configuration related issues.

Resolution:

  1. Disable anti-virus or anti-spyware software
  2. Check windows update
  3. Clear %TEMP% folder
  4. Run the installer as administrator
  5. Repair the 2015 VC redistributables and restart the Studio installer. The redistributable installer could mix up 64bit and 32bit DLL's.