控制台调用预编译合约报错cannot decode in in decodeMethodToObject with appropriate interface ABI

使用的console版本是2.8，fisco-bcos的版本也是2.8，自己编写了一个预编译合约，编译通过，然后在控制台调用报错`cannot decode in in decodeMethodToObject with appropriate interface ABI`，复现步骤如下：
```bash
[group:1]> call InferencePrecompiled.sol 0x5002 inference "test" "test"
cannot decode in decodeMethodToObject with appropriate interface ABI
```
预编译合约接口如下：
```javascript
pragma solidity ^0.4.24;

contract InferencePrecompiled {
function inference(string exec, string resPath) public view returns(string){}
}
```
控制台的log信息如下：
```
[DEBUG] [2022-04-01 18:44:50] ConsoleContractImpl.callContract(441) | sendCall request, params: [test, test], contractAddress: 0x0000000000000000000000000000000000005002, contractName: InferencePrecompiled, functionName:inference, paramSize: 2
[INFO] [2022-04-01 18:44:50] ContractABIDefinition.addFunction(84) | name: inference, methodId: 0x1d240d39, methodSignature: inference(string,string), abi: org.fisco.bcos.sdk.abi.wrapper.ABIDefinition@7aae184e
[INFO] [2022-04-01 18:44:50] ABIDefinitionFactory.loadABI(42) | abiDefinition: org.fisco.bcos.sdk.abi.wrapper.ABIDefinition@7aae184e
[INFO] [2022-04-01 18:44:50] ABIDefinitionFactory.loadABI(49) | contractABIDefinition org.fisco.bcos.sdk.abi.wrapper.ContractABIDefinition@2c6ee758
[INFO] [2022-04-01 18:44:50] ABIObjectFactory.createObject(32) | name: inference
[DEBUG] [2022-04-01 18:44:50] ChannelMsgHandler.onMessage(123) | onMessage in ChannelMsgHandler called, host : 127.0.0.1:20200, seq : ebbda4bbfb3540b28a58e7c5c50324db, msgType : 18
[INFO] [2022-04-01 18:44:50] ContractABIDefinition.addFunction(84) | name: inference, methodId: 0x1d240d39, methodSignature: inference(string,string), abi: org.fisco.bcos.sdk.abi.wrapper.ABIDefinition@7aae184e
[INFO] [2022-04-01 18:44:50] ABIDefinitionFactory.loadABI(42) | abiDefinition: org.fisco.bcos.sdk.abi.wrapper.ABIDefinition@7aae184e
[INFO] [2022-04-01 18:44:50] ABIDefinitionFactory.loadABI(49) | contractABIDefinition org.fisco.bcos.sdk.abi.wrapper.ContractABIDefinition@640dc4c6
[INFO] [2022-04-01 18:44:50] ABIObjectFactory.createObject(32) | name: inference
[ERROR] [2022-04-01 18:44:50] ABICodec.decodeMethodAndGetOutputObject(288) | exception in decodeMethodToObject : arraycopy: last source index 32 out of bounds for byte[0]
[ERROR] [2022-04-01 18:44:50] ABICodec.decodeMethodAndGetOutputObject(293) | cannot decode in decodeMethodToObject with appropriate interface ABI
[ERROR] [2022-04-01 18:44:50] Console.main(177) | message: cannot decode in decodeMethodToObject with appropriate interface ABI, e: {}
org.fisco.bcos.sdk.abi.ABICodecException: cannot decode in decodeMethodToObject with appropriate interface ABI
at org.fisco.bcos.sdk.abi.ABICodec.decodeMethodAndGetOutputObject(ABICodec.java:294)
at org.fisco.bcos.sdk.transaction.manager.AssembleTransactionProcessor.callAndGetResponse(AssembleTransactionProcessor.java:319)
at org.fisco.bcos.sdk.transaction.manager.AssembleTransactionProcessor.sendCallWithStringParams(AssembleTransactionProcessor.java:310)
at console.contract.ConsoleContractImpl.callContract(ConsoleContractImpl.java:450)
at console.contract.ConsoleContractImpl.call(ConsoleContractImpl.java:402)
at console.command.SupportedCommand$72.call(SupportedCommand.java:728)
at console.command.model.CommandInfo.callCommand(CommandInfo.java:270)
at console.Console.main(Console.java:105)
```
不知道为什么报`exception in decodeMethodToObject : arraycopy: last source index 32 out of bounds for byte[0]`，看起来参数的长度并没有超过32字节，另外我还想问一下solidity对于string传参的长度有限制吗？

感谢解答！