Error : out of range decoding Compact<u32>

[stanly-johnson]

Trying to use subsee with the latest node-template gives following error

Error: 
   0: Could not decode `RuntimeMetadataPrefixed.1`:
   0: 	Could not decode `RuntimeMetadata::V13.0`:
   0: 		Could not decode `RuntimeMetadataV13::types`:
   0: 			Could not decode `PortableRegistry::types`:
   0: 				Could not decode `Type::path`:
   0: 					Could not decode `Path::segments`:
   0: 						out of range decoding Compact<u32>
   0: 
   1: Could not decode `RuntimeMetadata::V13.0`:
   1: 	Could not decode `RuntimeMetadataV13::types`:
   1: 		Could not decode `PortableRegistry::types`:
   1: 			Could not decode `Type::path`:
   1: 				Could not decode `Path::segments`:
   1: 					out of range decoding Compact<u32>
   1: 
   2: Could not decode `RuntimeMetadataV13::types`:
   2: 	Could not decode `PortableRegistry::types`:
   2: 		Could not decode `Type::path`:
   2: 			Could not decode `Path::segments`:
   2: 				out of range decoding Compact<u32>
   2: 
   3: Could not decode `PortableRegistry::types`:
   3: 	Could not decode `Type::path`:
   3: 		Could not decode `Path::segments`:
   3: 			out of range decoding Compact<u32>
   3: 
   4: Could not decode `Type::path`:
   4: 	Could not decode `Path::segments`:
   4: 		out of range decoding Compact<u32>
   4: 
   5: Could not decode `Path::segments`:
   5: 	out of range decoding Compact<u32>
   5: 
   6: out of range decoding Compact<u32>

[chevdor]

The issue is mostly on the detection of the version and maybe due to Andrew already flying ahead with V13.

I checked out master of the node-template (83ed2d4) and it is still V12 I think:

subwasm info ./target/debug/wbuild/node-template-runtime/node_template_runtime.compact.wasm
Running subwasm v0.6.0
⏱️  Loading WASM from File("./target/debug/wbuild/node-template-runtime/node_template_runtime.compact.wasm")
🏋️  Runtime Size:	0.261 MB (274,051 bytes)
🎁 Metadata version:	V12
🔥 Core version:	node-template-100 (node-template-1.tx1.au1)
🗳️  Proposal hash:	0xefbb4243c6ff6fa11c8a5faf05c78f75eed7fb168c512e8eea9d17afbac2521d

[stanly-johnson]

I tested with the node-template in substrate repo, the standalone node-template repo works fine. AFAIK they are both same, except the node-template in substrate is more frequently updated. Also, from what I've tested this PR is what creates this error, testing with commit before this PR seems to work fine. I'm not able to pinpoint the exact source of the error yet.

[chevdor]

Since the PR you mention is changing how the version is stored in the wasm, that woud make sense to see an issue there. Thanks for reporting that one!

[ascjones]

Recently there was a V13 merged into master paritytech/substrate#8635 so could be that. I've created this PR in frame-metadata paritytech/frame-metadata#12 - let me try that out see if it fixes this issue

[chevdor]

Awesome, I was waiting for that one !

[ascjones]

I've pushed a fix, try now

[stanly-johnson]

Works now. Thanks!