:computer: Environment I’m testing a Factory contract from uniswap in remix. :memo:Details nothing was done but copy the contract code from etherscan browser to remix to test the function of the Factory contract. And the remix always display the same error message: Warning: source file does not s…

I’d love to share the code but I can confirm that the code which was unable to be compiled at my window end is from this address: [image] Contract Address 0x3032ab3fa8c01d786d29dade018d7f2017918e12 | Etherscan The Contract Address 0x3032ab3fa8c01d786d29dade018d7f2017918e12 page allows us…

Hi @uua , The Uniswap StakingRewardsFactory contract has a pragma: pragma solidity ^0.5.16; A source file with the line above does not compile with a compiler earlier than version 0.5.16, and it also does not work on a compiler starting from version 0.6.0 (this second condition is added by using ^ …

Thanks for replying. I’ve tried some means related to the compiler. It still didn’t work. But the compiling is Okay after I exchanged a PC. Could you tell me more details or solutions about this kind of problem?

Hi @uua , I was able to compile the contract with solc 0.5.17 in Remix. Are you able to share a screenshot of what error your are getting? [Compile Staking Rewards]

Hi @uua , This is the copy of the smart contract that I am using. Do you want to try that as I can’t see anything obvious in what you are doing. /** *Submitted for verification at Etherscan.io on 2020-09-16 */ pragma solidity ^0.5.16; /** * @dev Interface of the ERC20 standard as defined in th…

I’ve done nothing but just copied the contract code from etherscan and pasted it into the remix. Then the error appeared. So, I think the same error will appear. There are more messages below: I’ve tried the method that if I delete some functions/libraries/interface like safemath, the compiling be…

Can you share the contract here. I suspect that something is different.

Hi @uua , I am not sure what the problem is, but as you and I can both compile the code, it suggests something with your setup. Let me know if I can help.

BTW, I’ve solved the problem through deleting the others contract file which I didn’t need anymore. After I dealt with the extra contract files, the compiling of new contract was automatically completed. Therefore, I thought it is likely a problem related to the remix.

Hi @uua , Glad that you got it resolved.

Uniswap StakingRewardsFactory compiler error: Warning: source file does not specify required compiler version

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Uniswap StakingRewardsFactory compiler error: Warning: source file does not specify required compiler version

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