Solana: Error: Invalid bool: 142

Solving the Error on Solana Devnet

As a developer working with the Solana blockchain, you may have encountered the “Invalid bool” error when interacting with the Solana Devnet. This article will guide you through troubleshooting and resolving this issue.

What is the “Invalid bool” error?

The “Invalid bool” error occurs when the WrappedLayout module in your code attempts to decode a boolean value that is not one of the defined types (e.g., 0, 1, etc.). This error typically happens when trying to send or receive transactions on the Solana Devnet.

Causes of the “Invalid bool” error

The main cause of this error lies in the WrappedLayout module, which handles boolean decoding for various functions and APIs. The specific issue is often due to incorrect handling of boolean values, such as:

• Mixing booleans with other numeric types (e.g., using a number where a boolean should be)

• Passing non-boolean values through a function that expects a boolean

• Not properly casting or converting between different data types

How to fix the error

To resolve this issue, follow these steps:

• Check your code

  

  : Review your codebase for any functions or APIs that may be causing the WrappedLayout module to receive non-boolean inputs.

• Use a boolean wrapper library

  : Consider using libraries like solana-type-arrays or solana-types which provide pre-defined types and wrappers for Solana’s data structures, including booleans. These libraries can help ensure that your code is correctly handling boolean values.

• Use the correct casting: When passing non-boolean values through a function that expects a boolean, make sure to use the correct casting method (e.g., toBool or toBoolean).

• Validate input data: Always validate and sanitize user-provided input data to ensure it conforms to expected formats.

• Check for errors in transactions: Verify that any transactions being sent on the Devnet are correctly formatted and contain all required fields.

Example: Using a boolean wrapper library

Here’s an example of how you can wrap your boolean values using solana-type-arrays:

import { typedArray } from 'solana-type-arrays';


const wrappedBool = (x) => {

  return typedArray(x, [bool]);

};


// Usage:

const boolValue = wrappedBool(1); // Returns an array with a single boolean value

In this example, the wrappedBool function takes a boolean value as input and returns an array containing only that boolean. This ensures that the WrappedLayout module receives valid boolean inputs.

Conclusion

The “Invalid bool” error on Solana Devnet can be resolved by carefully reviewing your code, using correct casting and wrapper libraries, validating input data, and checking for errors in transactions. By following these steps, you should be able to overcome this common issue and continue working with confidence on the Devnet.

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