Kali cannot run msf solution

Kali cannot run msf solution

The error message is as follows

> Executing “sudo msfdb init && msfconsole”
[i] Database already started
[i] The database appears to be already configured, skipping initialization
Unable to find a spec satisfying metasploit-framework (>= 0) in the set. Perhaps the lockfile is corrupted?
Run `bundle install` to install missing gems.

Solution

gem install bundler:1.17.3

If you still report an error

, use the following command

gem update

Wait for a while, then you can use it