Requires Babel "^7.0.0-0", but was loaded with "6.26.3".
Babel7 is incompatible with Babel6.
For Babel6, you need to use the 2.x release of babel-preset-power-assert. Based on the passage above, Can you update the Babel version to "^7.0.0-0" so that it's compatible with the current code?
This prompt doesn't seem malicious.