Title: Error Using FHEVM 0.5.3 on Remix or Non-FHEVM Hardhat Template Setups

Zama fhEVM
1

With the latest FHEVM 0.5.3, if we try to use it in Remix or any other hardhat setup, it throws an error stating tstore and tload not found. These are the two opcodes used in the FHEVM library files introduced in the latest FHEVM. So, how should developers try out the new FHEVM outside of the default hardhat template?

Error : -

DeclarationError: Function "tstore" not found.
   --> fhevm/lib/KMSVerifier.sol:167:13:
    |
167 |             tstore(location, value)
    |             ^^^^^^


DeclarationError: Function "tload" not found.
   --> fhevm/lib/KMSVerifier.sol:177:22:
    |
177 |             value := tload(location)
    |                      ^^^^^
2

Hello!
Transient storage has been added in Solidity 0.8.24 and Cancun version of the EVM. Check in your hardhat configuration that you’re using the correct version. Transient Storage Opcodes in Solidity 0.8.24 | Solidity Programming Language