fix #794 input bug (#801)

web/i18n/lang/app-debug.en.ts

@@ -121,6 +121,7 @@ const translation = {
     tooLong: 'Variable key: {{key}} too length. Can not be longer then 16 characters',
     notValid: 'Variable key: {{key}} is invalid. Can only contain letters, numbers, and underscores',
     notStartWithNumber: 'Variable key: {{key}} can not start with a number',
+    keyAlreadyExists:'Variable key: :{{key}} already exists',
   },
   variableConig: {
     modalTitle: 'Field settings',

web/i18n/lang/app-debug.zh.ts

@@ -117,6 +117,7 @@ const translation = {
     tooLong: '变量: {{key}} 长度太长。不能超过 16 个字符',
     notValid: '变量: {{key}} 非法。只能包含英文字符，数字和下划线',
     notStartWithNumber: '变量: {{key}} 不能以数字开头',
+    keyAlreadyExists:'变量:{{key}} 已存在',
   },
   variableConig: {
     modalTitle: '变量设置',