diff --git a/starport/pkg/cosmosgen/generate_javascript.go b/starport/pkg/cosmosgen/generate_javascript.go
index 2520b6d308..5464152c8e 100644
--- a/starport/pkg/cosmosgen/generate_javascript.go
+++ b/starport/pkg/cosmosgen/generate_javascript.go
@@ -25,7 +25,7 @@ var (
 	}
 
 	jsOpenAPIOut = []string{
-		"--openapiv2_out=logtostderr=true,allow_merge=true,Mgoogle/protobuf/any.proto=github.com/cosmos/cosmos-sdk/codec/types:.",
+		"--openapiv2_out=logtostderr=true,allow_merge=true,json_names_for_fields=false,Mgoogle/protobuf/any.proto=github.com/cosmos/cosmos-sdk/codec/types:.",
 	}
 )
 
@@ -106,7 +106,7 @@ func (g *jsGenerator) generateModule(ctx context.Context, tsprotoPluginPath, app
 		m.Pkg.Path,
 		includePaths,
 		tsOut,
-		protoc.Plugin(tsprotoPluginPath),
+		protoc.Plugin(tsprotoPluginPath, "--ts_proto_opt=snakeToCamel=false"),
 	)
 	if err != nil {
 		return err
diff --git a/starport/pkg/cosmosgen/generate_openapi.go b/starport/pkg/cosmosgen/generate_openapi.go
index 77c663ad79..863839c19d 100644
--- a/starport/pkg/cosmosgen/generate_openapi.go
+++ b/starport/pkg/cosmosgen/generate_openapi.go
@@ -12,7 +12,7 @@ import (
 )
 
 var openAPIOut = []string{
-	"--openapiv2_out=logtostderr=true,allow_merge=true,fqn_for_openapi_name=true,simple_operation_ids=true,Mgoogle/protobuf/any.proto=github.com/cosmos/cosmos-sdk/codec/types:.",
+	"--openapiv2_out=logtostderr=true,allow_merge=true,json_names_for_fields=false,fqn_for_openapi_name=true,simple_operation_ids=true,Mgoogle/protobuf/any.proto=github.com/cosmos/cosmos-sdk/codec/types:.",
 }
 
 func generateOpenAPISpec(g *generator) error {
diff --git a/starport/pkg/cosmosgen/templates/vuex/store/index.ts.tpl b/starport/pkg/cosmosgen/templates/vuex/store/index.ts.tpl
index 6ddd8004f7..fa6c862cc7 100644
--- a/starport/pkg/cosmosgen/templates/vuex/store/index.ts.tpl
+++ b/starport/pkg/cosmosgen/templates/vuex/store/index.ts.tpl
@@ -1,6 +1,4 @@
 import { txClient, queryClient, MissingWalletError , registry} from './module'
-// @ts-ignore
-import { SpVuexError } from '@starport/vuex'
 
 {{ range .Module.Types }}import { {{ .Name }} } from "./module/types/{{ resolveFile .FilePath }}"
 {{ end }}
@@ -110,7 +108,7 @@ export default {
 					const sub=JSON.parse(subscription)
 					await dispatch(sub.action, sub.payload)
 				}catch(e) {
-					throw new SpVuexError('Subscriptions: ' + e.message)
+					throw new Error('Subscriptions: ' + e.message)
 				}
 			})
 		},
@@ -156,7 +154,7 @@ export default {
 				if (subscribe) commit('SUBSCRIBE', { action: '{{ $FullName }}{{ $n }}', payload: { options: { all }, params: {...key},query }})
 				return getters['get{{ $Name }}']( { params: {...key}, query}) ?? {}
 			} catch (e) {
-				throw new SpVuexError('QueryClient:{{ $FullName }}{{ $n }}', 'API Node Unavailable. Could not perform query: ' + e.message)
+				throw new Error('QueryClient:{{ $FullName }}{{ $n }} API Node Unavailable. Could not perform query: ' + e.message)
 				
 			}
 		},
@@ -171,9 +169,9 @@ export default {
 				return result
 			} catch (e) {
 				if (e == MissingWalletError) {
-					throw new SpVuexError('TxClient:{{ .Name }}:Init', 'Could not initialize signing client. Wallet is required.')
+					throw new Error('TxClient:{{ .Name }}:Init Could not initialize signing client. Wallet is required.')
 				}else{
-					throw new SpVuexError('TxClient:{{ .Name }}:Send', 'Could not broadcast Tx: '+ e.message)
+					throw new Error('TxClient:{{ .Name }}:Send Could not broadcast Tx: '+ e.message)
 				}
 			}
 		},
@@ -185,9 +183,9 @@ export default {
 				return msg
 			} catch (e) {
 				if (e == MissingWalletError) {
-					throw new SpVuexError('TxClient:{{ .Name }}:Init', 'Could not initialize signing client. Wallet is required.')
+					throw new Error('TxClient:{{ .Name }}:Init  Could not initialize signing client. Wallet is required.')
 				}else{
-					throw new SpVuexError('TxClient:{{ .Name }}:Create', 'Could not create message: ' + e.message)
+					throw new Error('TxClient:{{ .Name }}:Create  Could not create message: ' + e.message)
 					
 				}
 			}
diff --git a/starport/pkg/protoc/protoc.go b/starport/pkg/protoc/protoc.go
index 06b5e3d018..f2b6705131 100644
--- a/starport/pkg/protoc/protoc.go
+++ b/starport/pkg/protoc/protoc.go
@@ -22,12 +22,14 @@ type Option func(*configs)
 type configs struct {
 	pluginPath             string
 	isGeneratedDepsEnabled bool
+	pluginOptions          []string
 }
 
 // Plugin configures a plugin for code generation.
-func Plugin(path string) Option {
+func Plugin(path string, options ...string) Option {
 	return func(c *configs) {
 		c.pluginPath = path
+		c.pluginOptions = options
 	}
 }
 
@@ -73,6 +75,7 @@ func Command() (command Cmd, cleanup func(), err error) {
 // Generate generates code into outDir from protoPath and its includePaths by using plugins provided with protocOuts.
 func Generate(ctx context.Context, outDir, protoPath string, includePaths, protocOuts []string, options ...Option) error {
 	c := configs{}
+
 	for _, o := range options {
 		o(&c)
 	}
@@ -89,7 +92,6 @@ func Generate(ctx context.Context, outDir, protoPath string, includePaths, proto
 	if c.pluginPath != "" {
 		command = append(command, "--plugin", c.pluginPath)
 	}
-
 	var existentIncludePaths []string
 
 	// skip if a third party proto source actually doesn't exist on the filesystem.
@@ -115,6 +117,7 @@ func Generate(ctx context.Context, outDir, protoPath string, includePaths, proto
 	for _, out := range protocOuts {
 		command := append(command, out)
 		command = append(command, files...)
+		command = append(command, c.pluginOptions...)
 
 		if err := exec.Exec(ctx, command,
 			exec.StepOption(step.Workdir(outDir)),