Failure when attempting to make patch

$ npx patch-package serverless-webpack
patch-package 6.2.2
• Creating temporary folder
• Installing serverless-webpack@5.3.1 with npm

{
  status: 243,
  signal: null,
  output: [ null, <Buffer >, <Buffer > ],
  pid: 29938,
  stdout: <Buffer >,
  stderr: <Buffer >,
  error: null
}
undefined

Same problem occurs no matter which package I attempt to make a patch for.

Ubuntu 18.04.3 LTS Node and NPM installed via

snap install --classic node --channel=14/stable

resulting in

$ snap list
Name               Version                     Rev   Tracking       Publisher     Notes
...redacted...
node               14.1.0                      2687  14/stable      nodesource✓   classic
...redacted...

[kf6kjg]

@landsman add the above patch to your patches folder with the file name patch-package+6.2.2.patch and you’ll be able to create patches for other packages and patch-package will auto patch itself on every new install.

[landsman]

I have same problem.

Environment:

• Ubuntu 20.04 LTS
• node version: v10.21.0
• npm version: 6.14.6

$ snap list | grep node
node                    10.21.0                     2800  10/stable        nodesource*      classic