Ensure that package.json configuration entries accurately reflect the actual project structure and include complete, working settings. Incorrect or incomplete package.json configuration can cause runtime failures and deployment issues.
Key practices:
main
field points to the correct entry file pathExample of problematic vs. correct configuration:
// Problematic - main points to wrong file
{
"main": "index.js", // but actual file is dist/index.js
"babel": {
"presets": ["@babel/preset-react"] // incomplete, missing targets
}
}
// Correct - accurate paths and complete configuration
{
"main": "dist/index.js",
"babel": {
"presets": [
"@babel/preset-react",
[
"@babel/preset-env",
{
"targets": {
"node": "current"
}
}
]
]
}
}
Always validate that configuration entries work as intended in the target environment before committing or publishing.
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