This installation package could not be opened. Verify that the package exists and that you can access it, or contact the application vendor to verify that this is a valid Windows Installer package.
The command (syntax) below prompted this error and below the syntax are steps to mitigate or resolve this error.
Solution: In this case, copy it to the system32 folder and then it should work. See the second suggestion below for more information.
Below are other possible fix to this issue
– Make sure you run command-line (cmd) with administrative privilege).
– Ensure you run the installer in the right user path in command-line (Ensure the path where you are running this application from is the same where the installer is saved).
– Ensure you have privileged access to the INSTALL FOLDER or else you will also have this error.
I hope you found this my solution helpful in fixing “installation package could not be opened” error. Leave a comment or a question below.