Timeline for Execution erorr: Invalid opcode on estimateGas | Possible unhandled promise rejection
Current License: CC BY-SA 4.0
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| Aug 11, 2020 at 2:26 | comment | added | user63058 | @goodvibration BTW, Also, I am using Solidity 5.0.0 and web3 1.2.9. Could the "invalid opcode" be due to the web3 or solidity version ? | |
| Aug 11, 2020 at 2:26 | comment | added | user63058 | @goodvibration I did not include the whole smart contract. However, please note that is an "Add" function that is usually called before the "Track" function. This "Add" function has multiple "push" operations, which are added above in update#2 for your reference. | |
| Aug 11, 2020 at 2:17 | history | edited | user63058 | CC BY-SA 4.0 |
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| Aug 11, 2020 at 2:02 | history | edited | user63058 | CC BY-SA 4.0 |
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| Aug 10, 2020 at 17:47 | comment | added | hrkrshnn |
A generic way to see if the opcode invalid is in the code is to look at the assembly output of the function. You can do this by solc --asm. The output should have comments that denote entry point of your function.
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| Aug 10, 2020 at 17:44 | comment | added | goodvibration |
However, I do not see any of these two possible runtime operation - I could not find a single occurrence of push in your code (and in this entire webpage to be honest, except for the one that i just mentioned). So obviously every storage array in your code is of length 0. Thus, obviously any attempt to access any of the arrays in your contract would result with an invalid opcode, exactly as stated in the 2nd bullet in the answer that you've quoted!
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| Aug 10, 2020 at 16:48 | comment | added | user63058 | Added them above . mapping(address => mapping(address => string[])) public patientToDoctorRecordHashes; mapping(address => mapping(uint256 => address[])) public patientRecordListOfDoctors; mapping(address => string[]) public patientRecordHashes; | |
| Aug 10, 2020 at 16:47 | history | edited | user63058 | CC BY-SA 4.0 |
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| Aug 10, 2020 at 6:30 | comment | added | goodvibration |
As to your question: The state-variables patientRecordHashes and patientRecordListOfDoctors are missing in your code. We have no idea what they are (arrays or mappings) and how they are initialized. Obviously, your question cannot be answered without this information!
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| Aug 10, 2020 at 6:20 | comment | added | goodvibration |
BTW, as the user who wrote that answer about invalid opcodes, I can tell you that there is yet one more trigger that can cause them: calling a function which receives an enum parameter as input, and passing it a value larger than that enum's max value. This is a rather poor decision of the Solidity compiler development team, but it is nevertheless the current behavior.
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| Aug 10, 2020 at 6:16 | history | edited | goodvibration | CC BY-SA 4.0 |
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| Aug 9, 2020 at 18:42 | history | edited | user63058 | CC BY-SA 4.0 |
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| Aug 9, 2020 at 17:27 | review | First posts | |||
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| Aug 9, 2020 at 17:24 | history | asked | user63058 | CC BY-SA 4.0 |