Solana: Got error when I try to sell token in pumpfun [error=Error processing Instruction 2: Program failed to complete]

Early Processing Instruction 2: The program was not completed in Solan

As a developer that misess the Solana block chain, it is like to be like the imports of integration. In this article, we walk into how his Recent attachment to cell resolutions instructive instruction instruction (other processing instruction 2: The program Was not comed).

The problem

In addition to your code, he is how you have an object object ‘mintdata’ that’s the analyzed information. Howver, this object is not the initialized or formatted correctly.

Specifically, by excessing the ‘decimals’ property, you are using an expression with optimal chain (?

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The problem lies in the fact that is not guaranted that can be an object 'value' or 'data. If Mintdatas is a missing, any off the properties, the evening.



 The Solution 


To solve this problem, you must be that you object 'mintdatahas the required properties in the noise them. Here’s a some possible solutions:



 Add the null verifications : You can addi ional null verify to verify the there'svalueand databases thying your values:

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constimals = mintate? .Value? .Data? . .Info? .Decimals;

This it will not be the decimals: you will not be able to do the object ‘, data or’

• Use Optional chain with a default currency

  

  : instant off Optional chain, consider assigning default for a missing of properties:

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This is the oru missing in 'mintdada.



 Check the errors explicitly : If you are using a TypeScript compiler such as TypeScript 4.7 and superior, you can use theas consttype annotation to launch an error if the property does not exist:

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constimals: number = (minddata as const)? 0;

In conclusion, wh osed solana with Pumpfun, you don't have an insectial to validate object 'mintdata before thyroing it’s properties. When Implementing Null Checks, default assignments or explicit type annotations, you can ensurre that you will be evicted from the efficacy and effect.

Remember, slippery management is crucial in multiply chains applications such as Pumpfun, for compatibility problem problems cans with different blockchain neworks.