ganache-cli 是否支持伊斯坦布爾硬分叉？

我正在嘗試ganache-cli使用 istanbul –hardfork 執行，但出現以下錯誤：

Error: Hardfork istanbul not set as supported in supportedHardforks

---

$ ganache-cli --version
Ganache CLI v6.4.1 (ganache-core: 2.5.3)

$ ganache-cli --allowUnlimitedContractSize --port 8547 --gasLimit 6721975 --accounts 10 --hardfork istanbul
Error: Hardfork istanbul not set as supported in supportedHardforks
   at e.setHardfork (/Users/alper/.npm-packages/lib/node_modules/ganache-cli/build/ganache-core.node.cli.js:2:148221)
   at new e (/Users/alper/.npm-packages/lib/node_modules/ganache-cli/build/ganache-core.node.cli.js:2:147540)
   at new _ (/Users/alper/.npm-packages/lib/node_modules/ganache-cli/build/ganache-core.node.cli.js:61:490034)
   at v.createVMFromStateTrie (/Users/alper/.npm-packages/lib/node_modules/ganache-cli/build/ganache-core.node.cli.js:47:116822)
   at /Users/alper/.npm-packages/lib/node_modules/ganache-cli/build/ganache-core.node.cli.js:47:116382
   at /Users/alper/.npm-packages/lib/node_modules/ganache-cli/build/ganache-core.node.cli.js:47:117447
   at /Users/alper/.npm-packages/lib/node_modules/ganache-cli/build/ganache-core.node.cli.js:61:1841439
   at /Users/alper/.npm-packages/lib/node_modules/ganache-cli/build/ganache-core.node.cli.js:61:1840514
   at /Users/alper/.npm-packages/lib/node_modules/ganache-cli/build/ganache-core.node.cli.js:61:1845356
   at /Users/alper/.npm-packages/lib/node_modules/ganache-cli/build/ganache-core.node.cli.js:61:1842719
   at /Users/alper/.npm-packages/lib/node_modules/ganache-cli/build/ganache-core.node.cli.js:61:1863594
   at /Users/alper/.npm-packages/lib/node_modules/ganache-cli/build/ganache-core.node.cli.js:61:1870971
   at ReadFileContext.callback (/Users/alper/.npm-packages/lib/node_modules/ganache-cli/build/ganache-core.node.cli.js:61:1869433)
   at FSReqCallback.readFileAfterOpen [as oncomplete] (fs.js:242:13)

**$$ Q $$**我應該怎麼做才能修復它？

截至 2019 年 12 月 30 日，ganache-cli僅通過標記為 beta 的版本 6.8.0-istanbul0提供對伊斯坦布爾的支持。

要升級到此版本：

npm uninstall ganache-cli -g
npm install ganache-cli@istanbul -g

引用自：https://ethereum.stackexchange.com/questions/78617