Uniswap SDK Notes

Using const { AlphaRouter } = require('@uniswap/smart-order-router')

when calling 
  const wei = ethers.utils.parseUnits('100', 6)
  const inputAmount = CurrencyAmount.fromRawAmount(USDC, jsbi.BigInt(wei)) // Note inputAmount contains its own JSBI's  created by uniswap code which appear to be the source of the error
const route = await router.route(
    inputAmount,
    UNI,
    TradeType.EXACT_INPUT,
    {
      recipient: address,
      slippageTolerance: new Percent(25,100),
      deadline: Math.floor(Date.now() / 1000 + 1800)
    }
  )

Error: Could not parse fraction
    at Function.tryParseFraction (/home/sdk/pm/node_modules/@uniswap/sdk-core/dist/sdk-core.cjs.development.js:67:11)
    at Percent.lessThan (/home/sdk/pm/node_modules/@uniswap/sdk-core/dist/sdk-core.cjs.development.js:98:32)
    at Trade.maximumAmountIn (/home/sdk/pm/node_modules/@uniswap/v2-sdk/dist/v2-sdk.cjs.development.js:619:25)
    at Function.encodeV2Swap (/home/sdk/pm/node_modules/@uniswap/router-sdk/dist/router-sdk.cjs.development.js:1479:38)
    at Function.encodeSwaps (/home/sdk/pm/node_modules/@uniswap/router-sdk/dist/router-sdk.cjs.development.js:1630:35)
    at Function.swapCallParameters (/home/sdk/pm/node_modules/@uniswap/router-sdk/dist/router-sdk.cjs.development.js:1669:44)
    at Object.buildSwapMethodParameters (/home/sdk/pm/node_modules/@uniswap/smart-order-router/build/main/util/methodParameters.js:73:36)
    at AlphaRouter.route (/home/sdk/pm/node_modules/@uniswap/smart-order-router/build/main/routers/alpha-router/alpha-router.js:354:51)
    at processTicksAndRejections (internal/process/task_queues.js:95:5)
    at async main (/home/sdk/pm/test/uniswap/alpha.js:36:17)


Using const jsbi = require('jsbi') // 3.2.5

Also  if I update JSBI to the latest codebase (4.3.0) I get this:

Error: Convert JSBI instances to native numbers using toNumber. 

OK I solved this: Apparently I had some version conflicts in my dependencies, I uninstalled all @uniswap stuff and reinstalled it fixed the issue. I want to say this was caused by the jsbi package but it wasnt that, probably some package lock stuff happening between other uni packages