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-rwxr-xr-xbin/conflate.js4
1 files changed, 4 insertions, 0 deletions
diff --git a/bin/conflate.js b/bin/conflate.js
index 225dd89..4b7a156 100755
--- a/bin/conflate.js
+++ b/bin/conflate.js
@@ -141,6 +141,10 @@ const conflate = new Transform({
outputStreams.noOSMAddressWithinBlock.write(feature)
} else {
// other OSM addresses found within this block, so need to conflate
+ if (!('id' in block)) {
+ console.error('Expected id for block')
+ process.exit(1)
+ }
// see if any address with the same number and street in the same block
if (block.id in osmAddrPoints || block.id in osmAddrPolygonsByBlock) {