Merge pull request #2924 from ethereum/fix#2877

catch error when activating a plugin

src/app.js

@@ -404,7 +404,11 @@ Please make a backup of your contracts and start using http://remix.ethereum.org
 
   // Set workspace after initial activation
   if (Array.isArray(workspace)) {
-    await appManager.activatePlugin(workspace)
+    try {
+      await appManager.activatePlugin(workspace)
+    } catch (e) {
+      console.error(e)
+    }
   } else {
     // activate solidity plugin
     appManager.ensureActivated('solidity')

src/app/tabs/debugger-tab.js

@@ -64,7 +64,7 @@ class DebuggerTab extends ViewPlugin {
       }
     )
 
-    this.call('manager', 'activatePlugin', 'source-verification')
+    this.call('manager', 'activatePlugin', 'source-verification').catch(e => console.log(e.message))
     // this.call('manager', 'activatePlugin', 'udapp')
 
     return this.el