The tfjs-node package uses the node-gyp package to handle cross-compiling the C++ code required to bind TensorFlow to Node.js. This cross platform solution can be somewhat tricky on Windows platforms. This guide helps reference solutions that have been triaged through Issues on the main tfjs repo.
This can happen for a variety of reasons. First, to inspect what is missing either cd node_modules/@tensorflow/tfjs-node or clone the tensorflow/tfjs repo.
After cd'ing or cloning, run the following command (you might need node-gyp installed globablly npm install -g node-gyp):
node-gyp configure --verboseFrom the verbose output, if you see something like:
gyp verb check python checking for Python executable "python2" in the PATH
gyp verb `which` failed Error: not found: python2This means that node-gyp expects a 'python2' exe somewhere in %PATH%. Try running this command from an Admin (elevated privilaged prompt):
You can try running this from an Adminstrative prompt:
$ npm --add-python-to-path='true' --debug install --global windows-build-toolsIf another missing component shows up - please file an issue on tensorflow/tfjs with the output from the node-gyp configure --verbose command.
Check the full stack trace from npm install (or yarn) command. If you see something like:
gyp ERR! stack Error: C:\Program Files (x86)\MSBuild\14.0\bin\msbuild.exe failed with exit code: 1
You might need to install the system tools manually. This can be done via:
npm install -g --production windows-build-tools
If that still does not work - try re-running the command above in a privileged shell.