(phantomcss) task Warning: Object.isSealed called on non-object

[OlenDavis]

Here's my Gruntfile.coffee configuration for the grunt-phantomcss:

And here's the full output of the grunt-phantomcss task:

Running "phantomcss:desktop" (phantomcss) task
Verifying property phantomcss.desktop exists in config...OK
Files: build/built/js/000_angoolar.phantomcss.js
Options: screenshots="phantomcss/desktop/baseline/", results="phantomcss/desktop/results/", viewportSize=[1280,800], logLevel="error"
Warning: Object.isSealed called on non-object Use --force to continue.

Aborted due to warnings.

Do you have any idea what I'm missing? My versions are as follows:

node -v
v0.11.13

├── [email protected] 
├── [email protected] 
└── [email protected] 

[kelseyledford]

+1

[OlenDavis]

It looks like this is because the temporary NPM dependency is 0.0.7 rather than ~0.0.7 because that was a bug fixed in temporary#0.0.8: vesln/temporary#20