check if there is a last block stored

fix · fix · commit f65519a31ab9 · 2017-02-13T16:40:29.000+01:00
diff --git a/modules/delegates.js b/modules/delegates.js
@@ -254,7 +254,7 @@ __private.forge = function (cb) {
 	var currentSlot = slots.getSlotNumber();
 	// If we are supposed to forge now, be sure we got the very last block
 	var lastBlock = modules.blockchain.getLastBlock();
-	if (currentSlot === slots.getSlotNumber(lastBlock.timestamp)) {
+	if (!lastBlock || currentSlot === slots.getSlotNumber(lastBlock.timestamp)) {
 		err = 'Last block within same delegate slot';
 		return setImmediate(cb, err);
 	}

Original file line number	Diff line number	Diff line change
`@@ -254,7 +254,7 @@ __private.forge = function (cb) {`
`254`	`254`	`var currentSlot = slots.getSlotNumber();`
`255`	`255`	`// If we are supposed to forge now, be sure we got the very last block`
`256`	`256`	`var lastBlock = modules.blockchain.getLastBlock();`
`257`		`- if (currentSlot === slots.getSlotNumber(lastBlock.timestamp)) {`
	`257`	`+ if (!lastBlock \|\| currentSlot === slots.getSlotNumber(lastBlock.timestamp)) {`
`258`	`258`	`err = 'Last block within same delegate slot';`
`259`	`259`	`return setImmediate(cb, err);`
`260`	`260`	`}`