use pkgVerHint while generating pkgPath

packageManager.go

@@ -64,7 +64,7 @@ func SyncPackages(nugetConfigPath, localRepoPath string, allDeps []dependencyIte
 // |
 // The pkgName is case in-sensitive.
 func GetPackagePathFromName(localRepoPath, pkgName, targetNetVer string) (pkgPath string, err error) {
-	realPkgName, _ := extractPostfixPkgVerFromPkgName(pkgName) // pkgName with pkgVer would be discarded, and be guessed again.
+	realPkgName, pkgVerHint := extractPostfixPkgVerFromPkgName(pkgName) // pkgName with pkgVer should be discarded.
 	guessBase := localRepoPath + string(os.PathSeparator) + strings.ToLower(realPkgName)
 	files, err := ioutil.ReadDir(guessBase + string(os.PathSeparator))
 	if err != nil {
@@ -74,6 +74,10 @@ func GetPackagePathFromName(localRepoPath, pkgName, targetNetVer string) (pkgPat
 	maxVersion := ""
 	for _, f := range files {
 		if f.IsDir() && pathIsDir(guessBase + string(os.PathSeparator) + f.Name() + string(os.PathSeparator) + "lib" + string(os.PathSeparator) + targetNetVer) {
+			if strings.HasPrefix(maxVersion, pkgVerHint) && ! strings.HasPrefix(f.Name(), pkgVerHint) {
+				// If he matches pkgVerHint but you don't, you have no chance to be a candidate.
+				continue
+			}
 			if version.CompareSimple(f.Name(), maxVersion) >= 0 {
 				maxVersion = f.Name()
 			}