Paste Dependency Conflict Errors and Let Claude Find the Compatible Versions
Dependency resolution errors are some of the most frustrating to debug. The error messages are dense, the version constraints are nested, and the fix usually involves changing one number in one file — but finding which number takes forever. Claude reads the error and your lockfile to find the answer.
npm install failed with this error: [paste the ERESOLVE output]
Read my package.json and tell me which version constraints are conflicting
and what to change to resolve it.
Claude parses the conflict tree, traces the incompatible peer dependencies, and tells you the minimum change needed:
The conflict: package-A requires react@^17.0.0 but package-B requires react@^18.0.0.
Fix: Update package-A to v3.2.0+ which supports React 18.
Run: npm install package-A@^3.2.0
This works for all package managers:
# Composer conflicts
composer update is failing with "Your requirements could not be resolved".
Read the error and my composer.json — which constraint do I need to relax?
# pip conflicts
pip install fails with "ResolutionImpossible". Read the error and
requirements.txt and tell me which packages are fighting.
# Cargo conflicts
cargo build has version conflicts in the dependency tree.
Read Cargo.toml and the error to find the fix.
# Monorepo conflicts
Our monorepo's workspace has packages that depend on different versions
of the same library. Which packages need to align and to what version?
For particularly tangled dependency trees:
I've been fighting this dependency conflict for an hour.
Read my package.json and package-lock.json. Map out the full
dependency tree for the conflicting packages and show me every
path that leads to an incompatibility. Then suggest the fix
that requires the fewest changes.
Dependency conflicts are graph problems disguised as error messages — let Claude untangle the tree and find the one version change that fixes it.
via Claude Code
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When a page takes five seconds to load or an API endpoint times out under load, tell Claude which route is slow and it traces the entire code path — controller, services, queries, loops — identifying N+1 queries, redundant computations, missing indexes, and cacheable operations, then fixes each bottleneck.
Flaky tests are maddening — they pass locally, fail in CI, pass again when you retry. Tell Claude to read the test, identify the source of non-determinism — timing issues, shared state, date dependencies, or order-dependent setup — and fix the root cause so the test is reliably green or reliably red.
When your app throws an error, don't just Google the message — paste the full stack trace into Claude Code. It reads the trace, opens the referenced files in your codebase, follows the call chain, and pinpoints the actual root cause instead of just explaining the symptom.