Merge pull request #979 from ethereum/fixremixdscenario

src/app/panels/file-panel.js

@@ -348,6 +348,7 @@ function filepanel (appAPI, filesProvider) {
       packageFiles(filesProvider['browser'], (error, packaged) => {
         if (error) {
           console.log(error)
+          modalDialogCustom.alert('Failed to create gist: ' + error)
         } else {
           var description = 'Created using browser-solidity: Realtime Ethereum Contract Compiler and Runtime. \n Load this file by pasting this gists URL or ID at https://ethereum.github.io/browser-solidity/#version=' + queryParams.get().version + '&optimize=' + queryParams.get().optimize + '&gist='
           console.log(packaged)

src/app/tabs/run-tab.js

@@ -327,7 +327,10 @@ function makeRecorder (events, appAPI, appEvents) {
   }
   runButton.onclick = () => {
     var currentFile = appAPI.config.get('currentFile')
-    var json = appAPI.filesProviders['browser'].get(currentFile)
+    appAPI.fileProviderOf(currentFile).get(currentFile, (error, json) => {
+      if (error) {
+        modalDialogCustom.alert('Invalid Scenario File ' + error)
+      } else {
         if (currentFile.match('.json$')) {
           try {
             var obj = JSON.parse(json)
@@ -349,6 +352,8 @@ function makeRecorder (events, appAPI, appEvents) {
           modalDialogCustom.alert('A Scenario File is required. The file must be of type JSON. Use the "Save Transactions" Button to generate a  new Scenario File.')
         }
       }
+    })
+  }
   return { recordButton, runButton }
 }
 /* ------------------------------------------------