TypeError: Cannot read property 'number' of null

[ltfschoen]

After a few moments running the server of my faucet repository, I get the following error, and it occurs on the following line of code, so it has been commented out https://github.com/DataHighway-DHX/faucet/blob/master/helpers/contract.js#L24. That line of code isn't required for the faucet anyway. Potential solution here: MetaMask/web3-provider-engine#313.
Note: This error still happens after commenting out the getBlock code. Since @trufflesuite/web3-provider-engine is a fork of MetaMask/web3-provider-engine I can't create an issue, so might have to switch to ethers.js

/Users/ls/code/src/DataHighway-com/faucet-mining/node_modules/@trufflesuite/web3-provider-engine/index.js:219 number: ethUtil.toBuffer(jsonBlock.number), ^ TypeError: Cannot read property 'number' of null at toBufferBlock (/Users/ls/code/src/DataHighway-com/faucet-mining/node_modules/@trufflesuite/web3-provider-engine/index.js:219:50) at /Users/ls/code/src/DataHighway-com/faucet-mining/node_modules/@trufflesuite/web3-provider-engine/index.js:60:27 at /Users/ls/code/src/DataHighway-com/faucet-mining/node_modules/@trufflesuite/web3-provider-engine/index.js:136:12 at /Users/ls/code/src/DataHighway-com/faucet-mining/node_modules/@trufflesuite/web3-provider-engine/index.js:199:9 at /Users/ls/code/src/DataHighway-com/faucet-mining/node_modules/async/internal/once.js:12:16 at replenish (/Users/ls/code/src/DataHighway-com/faucet-mining/node_modules/async/internal/eachOfLimit.js:61:25) at /Users/ls/code/src/DataHighway-com/faucet-mining/node_modules/async/internal/eachOfLimit.js:71:9 at eachLimit (/Users/ls/code/src/DataHighway-com/faucet-mining/node_modules/async/eachLimit.js:43:36) at /Users/ls/code/src/DataHighway-com/faucet-mining/node_modules/async/internal/doLimit.js:9:16 at end (/Users/ls/code/src/DataHighway-com/faucet-mining/node_modules/@trufflesuite/web3-provider-engine/index.js:176:5) at /Users/ls/code/src/DataHighway-com/faucet-mining/node_modules/@trufflesuite/web3-provider-engine/subproviders/provider.js:19:5 at XMLHttpRequest.request.onreadystatechange (/Users/ls/code/src/DataHighway-com/faucet-mining/node_modules/web3-providers-http/src/index.js:96:13) at XMLHttpRequestEventTarget.dispatchEvent (/Users/ls/code/src/DataHighway-com/faucet-mining/node_modules/xhr2-cookies/xml-http-request-event-target.ts:44:13) at XMLHttpRequest._setReadyState (/Users/ls/code/src/DataHighway-com/faucet-mining/node_modules/xhr2-cookies/xml-http-request.ts:219:8) at XMLHttpRequest._onHttpResponseEnd (/Users/ls/code/src/DataHighway-com/faucet-mining/node_modules/xhr2-cookies/xml-http-request.ts:345:8) at IncomingMessage.<anonymous> (/Users/ls/code/src/DataHighway-com/faucet-mining/node_modules/xhr2-cookies/xml-http-request.ts:311:39)`

[sheenhx]

using parity or myetherwallet will work?

[ltfschoen]

@sheenhx I created a PR to fix the dependency here trufflesuite/provider-engine#6

[ltfschoen]

That fix has been merged by Truffle, I've temporarily increased the version to yarn add @truffle/hdwallet-provider@next in this commit of our master branch f8291e1 so we don't encounter that error which causes the whole faucet to crash.
After their weekly release cycle I'll update to the latest version 1.0.37.