Add / Download Package As Dev Dependency
Download Package As Dev Dependency
Installs a package as a development dependency.
pnpm add <module_name> -D pnpm add <module_name> -D #!/bin/bash
# Download Package As Dev Dependency
pnpm add {{module_name}} {{[-D|--save-dev]}} import subprocess
# Download Package As Dev Dependency
# Make sure to replace <placeholders> with actual values
def run_command():
cmd = [
"add",
"add",
"<module_name>",
"-D"
]
try:
print(f"Executing: {' '.join(cmd)}")
subprocess.run(cmd, check=True)
except subprocess.CalledProcessError as e:
print(f"Error: {e}")
except FileNotFoundError:
print("Error: add not found. Please install it first.")
if __name__ == "__main__":
run_command() When To Use
During project setup for new features requiring additional dev libraries.
Pro Tip
Use `--no-cache` for fresh installs in CI environments to avoid stale dependencies.
Command Builder
Tune the command before you copy it
pnpm add <module_name> -D Anatomy of Output
Understanding the result
+ example-package@1.0.0 Package Indicates successful installation of the package.
added 1 package, and audited 50 packages in 200ms Stats Shows total packages added and scanned for vulnerabilities.
found 0 vulnerabilities Vulnerabilities Verdict on current package security.
Troubleshooting
Common pitfalls
ERR_PNPM_NO_PACKAGE: The package 'example-package' is not found
Solution: Ensure package name is correct.
ERR_PNPM_ADDING_TO_ROOT: Cannot add to a root package, please specify a working directory
Solution: Run this command from within a package directory.
ERR_PNPM_LOCKFILE_MISMATCH: Lockfile is out of sync with package.json
Solution: Run `pnpm install` to refresh lockfile.
Command Breakdown
What each part is doing
-
pnpm - Base Command
- The executable that performs this operation. Here it runs Add before the shell applies any redirect operators.
-
<module_name> - module name
- The value supplied for module name.
-
-D - D| save dev
- The value supplied for D| save dev.
-
-D - Command Option
- Tool-specific option used by this command invocation.
Alternative Approaches
Comparable commands in other tools
Alternative package management tools for the same job.