fix: print a hint about the package-manager-strict setting (#7960)

close #7956

.changeset/yellow-dolphins-battle.md

@@ -0,0 +1,6 @@
+---
+"@pnpm/cli-utils": patch
+"pnpm": patch
+---
+
+Print a hint about the `package-manager-strict` setting, when pnpm doesn't match the version specified in the `packageManager` field in `package.json`.

cli/cli-utils/src/packageIsInstallable.ts

@@ -38,7 +38,9 @@ export function packageIsInstallable (
       if (pmVersion && pnpmVersion && pmVersion !== pnpmVersion) {
         const msg = `This project is configured to use v${pmVersion} of pnpm. Your current pnpm is v${pnpmVersion}`
         if (opts.packageManagerStrict) {
-          throw new PnpmError('BAD_PM_VERSION', msg)
+          throw new PnpmError('BAD_PM_VERSION', msg, {
+            hint: 'If you want to bypass this version check, you can set the "package-manager-strict" configuration to "false" or set the "COREPACK_ENABLE_STRICT" environment variable to "0"',
+          })
         } else {
           globalWarn(msg)
         }