From c6fecbf98f51a4a61e59aba992091c58ed32a4cf Mon Sep 17 00:00:00 2001
From: Keith Ingram <kwingram25@gmail.com>
Date: Wed, 4 Dec 2019 14:11:03 -0500
Subject: [PATCH] Fix contract deploy crash (#1998)

* tuple deploy crash

* lint
---
 packages/react-params/src/Param/Tuple.tsx | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/packages/react-params/src/Param/Tuple.tsx b/packages/react-params/src/Param/Tuple.tsx
index b31f5f5fa6..ee84c8884e 100644
--- a/packages/react-params/src/Param/Tuple.tsx
+++ b/packages/react-params/src/Param/Tuple.tsx
@@ -18,10 +18,14 @@ export default function Tuple (props: Props): React.ReactElement<Props> {
   const { className, isDisabled, label, onChange, style, type, withLabel } = props;
 
   useEffect((): void => {
-    const rawType = createType(registry, type.type as any).toRawType();
-    const typeDef = getTypeDef(rawType);
+    try {
+      const rawType = createType(registry, type.type as any).toRawType();
+      const typeDef = getTypeDef(rawType);
 
-    setParams((typeDef.sub as TypeDef[]).map((type): ParamDef => ({ name: type.name, type })));
+      setParams((typeDef.sub as TypeDef[]).map((type): ParamDef => ({ name: type.name, type })));
+    } catch (e) {
+      setParams(((Array.isArray(type.sub) ? type.sub : [type.sub]) as TypeDef[]).map((subType): ParamDef => ({ name: subType.name, type: subType })));
+    }
   }, [type]);
 
   if (isDisabled) {