Error accessing datastore when using apigeetool - deploynodeapp

[#1]

I'm new to Apigee, so I hope this isn't a silly question... I'd like to upload a pre-existing Node project into Apigee using the 'apigeetool'; my understanding is that before uploading I must run 'npm install' in order to build all dependencies. Using the 'deploynodeapp' function in a similar manor to this:

apigeetool deploynodeapp -n <some name> -d <path to root of node project> -o <organisation> -e qa -b <path> -u <email> -m <root js file>

This gives the following error:

"message" : "com.apigee.datastore.DataAccessException{ code = datastore.ErrorWhileAccessingDataStore, message = Error while accessing datastore;Please retry later, associated contexts = []}"

Now I believe that this is due to exceeding some sort of package size issue, 15mb?, which I have seen loosely coupled with the error I'm seeing. Looking at the project size I can see that node_modules is far greater than 15mb. Removing the node_modules directory, as a test, and then uploading the node project is successful (and a total size of <1mb). So my question is, can this limit be changed? and if so how does one go about doing this?

Thanks