Fix the error
```homestead-7: Creating and registering the VM...
An error occurred while executing a PowerShell script. This error
is shown below. Please read the error message and see if this is
a configuration error with your system. If it is not, then please
report a bug.
Script: import_vm_vmcx.ps1
Error:
At C:\Program Files
(x86)\HashiCorp\Vagrant\embedded\gems\gems\vagrant-1.9.4\plugins\providers\hyper v\scripts\import_vm_vmcx.ps1:18 char:37
+ [string]$differencing_disk=$null
+ ~
Missing ')' in function parameter list.
At C:\Program Files
(x86)\HashiCorp\Vagrant\embedded\gems\gems\vagrant-1.9.4\plugins\providers\hyper v\scripts\import_vm_vmcx.ps1:20 char:1
+ )
+ ~
Unexpected token ')' in expression or statement.
+ CategoryInfo : ParserError: (:) [], ParseException
+ FullyQualifiedErrorId : MissingEndParenthesisInFunctionParameterList
```
In some cases the SSH connection may be aborted while waiting
for setup. This includes aborted connections in the list of
applicable exceptions to retry on while waiting for the connection
to become available.
Fixes#8520
Prevent sending empty data strings to defined blocks handling
stderr and stdout output. These can occur when the garbage
marker is identified and collected data pruned, but no remaining
data is left to send.
Fixes#8259
With the introduction of `pip_args` option, you can easily extend the
`:pip` installation mode behaviour. But some interesting/advanced usages
are still not possible because of the auto-generated parts ("ansible"
package, version selection, and the `--upgrade` flag).
By adding this "pip_args_only" install mode, it will be for instance
possible to:
- install unofficial releases, like release candidates published at
https://releases.ansible.com/
- install more pip packages (e.g. via a `requirements.txt` file), with
hash validation, etc.
Note that there is no config validation that requires `pip_args` option
to be defined when the :pip_args_only mode is selected. This would be
more elegant, and user friendly to raise a configuration error, but this
can wait. At least, running with an empty `pip_args` won't lead to any
command crash, since the rather dummy "pip install" shows an helper
notice and terminates with a zero (0) exit code.
This change is thought as a complement to the changes originally
proposed in pull request GH-8170.
With this new option, it is now possible to pass additional arguments to
pip command when the `install_mode` is "pip".
(@gildegoma reworded the original commit message of pull request GH-8170)
Chris Roberts
Arjan Weurding
Chris Roberts
Dafydd Jones
BJ Dierkes
Anand Suresh
knbnnate
Gökhan Şengün
Gilles Cornu
Simon Detheridge
James Carr
Bjorn Brala