Fix error when installing, updating or remove packages

src/bpmlib/hooks.go

@@ -99,7 +99,10 @@ func (hook *BPMHook) Execute(packageChanges map[string]string, verbose bool, roo
 	// Get modified files slice
 	modifiedFiles := make([]*PackageFileEntry, 0)
 	for pkg := range packageChanges {
-		modifiedFiles = append(modifiedFiles, GetPackage(pkg, rootDir).PkgFiles...)
+		if GetPackage(pkg, rootDir) != nil {
+			modifiedFiles = append(modifiedFiles, GetPackage(pkg, rootDir).PkgFiles...)
+		}
+
 	}
 
 	// Check if any targets are met

src/bpmlib/packages.go

@@ -870,6 +870,16 @@ func installPackage(filename, rootDir string, verbose, force bool) error {
 			return err
 		}
 	}
+
+	// Ensure local package information has been initialized for rootDir
+	err = initializeLocalPackageInformation(rootDir)
+	if err != nil {
+		return err
+	}
+
+	// Add or update package information for rootDir
+	localPackageInformation[rootDir][bpmpkg.PkgInfo.Name] = bpmpkg
+
 	return nil
 }
 
@@ -999,5 +1009,14 @@ func removePackage(pkg string, verbose bool, rootDir string) error {
 		return err
 	}
 
+	// Ensure local package information has been initialized for rootDir
+	err = initializeLocalPackageInformation(rootDir)
+	if err != nil {
+		return err
+	}
+
+	// Add or update package information for rootDir
+	delete(localPackageInformation[rootDir], pkgInfo.Name)
+
 	return nil
 }