Issue when build using zksync | account abstraction chapter

[r00tk11t]

I have this error when building using >forge build --zksync
error : Floating point exception (core dumped)

the problem seems to be with sloc , I removed it and installed different version but the same error

this is the zksolc --version
Solidity compiler for ZKsync v1.5.5 (LLVM build 801623bd56fbf4e1faf964d4c8dbce563bed9384)

[EngrPips]

I haven't run into this before, It is tough to say what is wrong. @PatrickAlphaC we could use some help here sir.

[PatrickAlphaC]

Can you make an issue on foundry-zksync with the exact steps you take to get this?

[r00tk11t]

I just removed the .zksync folder > rm -rf ~/.zksync/ after facing an issue with zksolc maybe because of the version.
then I start receiving the "error : Floating point exception (core dumped)" when building using forge build --zksync.

I doubt that I removed a file related to zksolc when I removed the ~/.zksync folder.
but I uninstalled all foundry and foundry zksync but this didn't solve the issue.

but I doubt the main problem maybe bacause of deleting this ~/.zksync/ directory, because before removing it I was receiving an error with zksolc then the Floating point exception (core dumped) but after removing it only the floating point exception appears

---

current zksolc --version:
Solidity compiler for ZKsync v1.5.5 (LLVM build 801623bd56fbf4e1faf964d4c8dbce563bed9384)

[Nitesh-thapliyal]

I'm also facing the same Issue

Steps that I have taken to get this:

• Cloned GitHub repo of foundry-zksync

git clone https://github.com/matter-labs/foundry-zksync

• Moved inside the cloned directory
• installed foundry-zksync as mentioned in video

./install-foundry-zksync

Then I got the error:

Downloading foundryup-zksync...
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
  Warning: Failed to create the file foundryup-zksync: Is a directory
  8 16310    8  1317    0     0  10384      0  0:00:01 --:--:--  0:00:01 10452
curl: (23) Failure writing output to destination

• I checked, as there is already a dir present with that name, so I tried to rename the dir
• re-installed it and it got installed successfully
• Then I tried to build the smart contract using command forge build --zksync

Got the following error:

[1]    32615 floating point exception (core dumped)  forge build --zksync

Is there any fix to this problem?

[Nitesh-thapliyal]

Try updating foundry-zksync then retry. It also seem like you ran into some issues when installing foundry-zksync as shown below

Downloading foundryup-zksync...
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
  Warning: Failed to create the file foundryup-zksync: Is a directory
  8 16310    8  1317    0     0  10384      0  0:00:01 --:--:--  0:00:01 10452
curl: (23) Failure writing output to destination <@ here

foundry-zksync is installed successfully, and I have tried to reinstall it multiple times, the issue comes when I'm trying to build using the command forge build --zksync it gives me the error:

[1]    22048 floating point exception (core dumped)  forge build --zksync

[EngrPips]

Which project are you currently trying to build so I can try on my end and see if things work correctly on my end.

[Nitesh-thapliyal]

Which project are you currently trying to build so I can try on my end and see if things work correctly on my end.

Foundry fundamental -> foundry-zksync and I'm trying to build SimpleStorage contract.

[EngrPips]

I ran the command it works fine for me.

forge build --zksync
[⠊] Using zksolc-1.5.11
[⠊] Compiling (zksync)
[⠒] Compiling 18 files with zksolc and solc 0.8.23
[⠑] zksolc and solc 0.8.23 finished in 10.84s
Compiler run successful with warnings:
Warning
EraVM does not use bytecode for contract deployment. Instead, it refers to contracts using their bytecode hashes.
In order to deploy a contract, please use the `new` operator in Solidity instead of raw 'create'/'create2' in assembly.
In Solidity v0.6 and older, it can be a false-positive warning if there is 'create(' or 'create2(' in comments within assembly.
Learn more about CREATE/CREATE2 EraVM limitations at https://docs.zksync.io/zksync-protocol/differences/evm-instructions#create-create2
You may disable this warning with:
    1. `suppressedWarnings = ["assemblycreate"]` in standard JSON.
    2. `--suppress-warnings assemblycreate` in the CLI.
     |> lib/forge-std/src/StdCheats.sol:494:19
 494 |             addr := create(0, add(bytecode, 0x20), mload(bytecode))
     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Warning
EraVM does not use bytecode for contract deployment. Instead, it refers to contracts using their bytecode hashes.
In order to deploy a contract, please use the `new` operator in Solidity instead of raw 'create'/'create2' in assembly.
In Solidity v0.6 and older, it can be a false-positive warning if there is 'create(' or 'create2(' in comments within assembly.
Learn more about CREATE/CREATE2 EraVM limitations at https://docs.zksync.io/zksync-protocol/differences/evm-instructions#create-create2
You may disable this warning with:
    1. `suppressedWarnings = ["assemblycreate"]` in standard JSON.
    2. `--suppress-warnings assemblycreate` in the CLI.
     |> lib/forge-std/src/StdCheats.sol:504:19
 504 |             addr := create(0, add(bytecode, 0x20), mload(bytecode))
     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Warning
EraVM does not use bytecode for contract deployment. Instead, it refers to contracts using their bytecode hashes.
In order to deploy a contract, please use the `new` operator in Solidity instead of raw 'create'/'create2' in assembly.
In Solidity v0.6 and older, it can be a false-positive warning if there is 'create(' or 'create2(' in comments within assembly.
Learn more about CREATE/CREATE2 EraVM limitations at https://docs.zksync.io/zksync-protocol/differences/evm-instructions#create-create2
You may disable this warning with:
    1. `suppressedWarnings = ["assemblycreate"]` in standard JSON.
    2. `--suppress-warnings assemblycreate` in the CLI.
     |> lib/forge-std/src/StdCheats.sol:515:19
 515 |             addr := create(val, add(bytecode, 0x20), mload(bytecode))
     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Warning
EraVM does not use bytecode for contract deployment. Instead, it refers to contracts using their bytecode hashes.
In order to deploy a contract, please use the `new` operator in Solidity instead of raw 'create'/'create2' in assembly.
In Solidity v0.6 and older, it can be a false-positive warning if there is 'create(' or 'create2(' in comments within assembly.
Learn more about CREATE/CREATE2 EraVM limitations at https://docs.zksync.io/zksync-protocol/differences/evm-instructions#create-create2
You may disable this warning with:
    1. `suppressedWarnings = ["assemblycreate"]` in standard JSON.
    2. `--suppress-warnings assemblycreate` in the CLI.
     |> lib/forge-std/src/StdCheats.sol:525:19
 525 |             addr := create(val, add(bytecode, 0x20), mload(bytecode))
     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

[EngrPips]

I am unsure what could be the problem on your end.

[TatyOko28]

The Floating point exception (core dumped) error in forge build --zksync could be due to:

sloc version conflicts: Try completely removing sloc (rm -rf ~/.foundry/bin/sloc) and reinstalling it.
Forge/ZKSync incompatibility: Ensure you're using a compatible foundry version with zksolc 1.5.5. Try updating Foundry (foundryup).
ZKSync compiler issue: Downgrade zksolc to a stable version (e.g., 1.5.4 or 1.5.3).
LLVM-related crash: Ensure your system has the correct dependencies (llvm and clang).
Try running in debug mode:

RUST_BACKTRACE=1 forge build --zksync

This might give more insights.

[EngrPips]

Interesting.

[Nitesh-thapliyal]

The Floating point exception (core dumped) error in forge build --zksync could be due to:

sloc version conflicts: Try completely removing sloc (rm -rf ~/.foundry/bin/sloc) and reinstalling it. Forge/ZKSync incompatibility: Ensure you're using a compatible foundry version with zksolc 1.5.5. Try updating Foundry (foundryup). ZKSync compiler issue: Downgrade zksolc to a stable version (e.g., 1.5.4 or 1.5.3). LLVM-related crash: Ensure your system has the correct dependencies (llvm and clang). Try running in debug mode:

RUST_BACKTRACE=1 forge build --zksync

This might give more insights.

Hi, there is no sloc dir in that path in my system, I tried reinstalling foundry-zksync, but the same issue persists.

[Nitesh-thapliyal]

@EngrPips @TatyOko28 , I found this issue on foundry-zksync github, I think it might take some time for them to fix this, if the problem is from the dev team.

[EngrPips]

Yeah, It seems it is an issue from Foundry end.