What is Node, NodeJS, NPM and NVM?

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Node.js is an open-source, cross-platform, back-end JavaScript runtime environment that runs on a JavaScript Engine and executes JavaScript code outside a web browser, which was designed to build scalable network applications. (https://en.wikipedia.org/wiki/Node.js)

Node and NodeJS refers to the same thing.

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NPM (originally short for Node Package Manager) is a package manager for the JavaScript programming language maintained by npm, Inc. npm is the default package manager for the JavaScript runtime environment Node.js. (https://en.wikipedia.org/wiki/Npm_(software))

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Nvm is a nodejs version manager. It let's you easily install and switch between versions. It retains globally installed packages for each version

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Solution To Knime Error (ERROR BERT Model Selector 3:15 Execute failed)

Error Message:

ERROR BERT Model Selector 3:15 Execute failed: An error occurred while trying to launch Python: Could not start Python. There are problems with your Python environment: Library bert is missing.

Solution:

This could be due to certain required libraries missing/not-installed-yet.

Refer the guide in (https://www.knime.com/blog/bert-text-classification-for-everyone#Installation) that says that the following libraries need to be installed into the related Python environment.

For example, if your Python environment is managed by Anaconda/Conda, run Cmd/Terminal window from Anaconda/Conda navigator window as follows:

The full list of required modules are as follows:

bert==2.2.0

bert-for-tf2==0.14.4

Keras-Preprocessing==1.1.2

numpy==1.19.1

pandas==0.23.4

pyarrow==0.11.1

tensorboard==2.2.2

tensorboard-plugin-wit==1.7.0

tensorflow==2.2.0

tensorflow-estimator==2.2.0

tensorflow-hub==0.8.0

tokenizers==0.7.0

tqdm==4.48.0

transformers==3.0.2

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