Input instances are not in JSON format

问题

I'm practicing GCP ML engine using Google's public templates and examples located here

After I ran the code in the example "housing-regression" LOCALLY, the model was successfully generated.

However, in prediction, an error was raised

ERROR: (gcloud.ml-engine.local.predict) Input instances are not in JSON format.

See "gcloud ml-engine predict --help" for details.

The codes I ran is in local-train.sh

gcloud ml-engine local predict --model-dir=${MODEL_LOCATION} --json-instances=data/new-data.json

Does anyone have the same problem? Did I make a mistake somewhere or is there some information I may have missed?

NOTES:

1. This code is running locally on my Mac using GCP SDK which I have installed
2. I checked the file and it is indeed a JSON file.

回答1:

For online prediction, the json needs to be one instance per line. So try removing the pretty formatting ...

来源：https://stackoverflow.com/questions/50653384/input-instances-are-not-in-json-format