JSII compilation errors when building using dependencies from package.json

[emileten]

When I :

• install the eoapi-cdk dependencies from package-lock.json (that is, run npm install from the root of the repo), I can then build the package successfully (i.e run afterwards npm run build)
• however when I install dependencies from package.json (that is, delete package-lock.json and run npm install), I get JSII compilation errors when building the package.

I suspect that at some point we changed package.json (and broke it) without changing the lock file (which still works).