Can't run sanity start

[kongweiying2]

I'm attempting to follow the instructions at the end of this starter:

https://www.sanity.io/create?taskId=SyNOeWRyGZxOTULAdkJU&template=sanity-io%2Fsanity-template-nextjs-blog-comments

It says to run:

sanity start

When I attempt to run the Sanity Studio locally, I get this error:

Error: Datasets can only contain lowercase characters, numbers, underscores and dashes, and start with tilde, and be maximum 20 characters

at Object.e.dataset (/usr/local/lib/node_modules/@sanity/cli/bin/sanity-cli.js:538:476)
    at e.initConfig (/usr/local/lib/node_modules/@sanity/cli/bin/sanity-cli.js:4266:1246)
    at g.config (/usr/local/lib/node_modules/@sanity/cli/bin/sanity-cli.js:4008:1254)
    at new g (/usr/local/lib/node_modules/@sanity/cli/bin/sanity-cli.js:4008:772)
    at g (/usr/local/lib/node_modules/@sanity/cli/bin/sanity-cli.js:4008:755)
    at Object.apiClient (/usr/local/lib/node_modules/@sanity/cli/bin/sanity-cli.js:1632:911)
    at ~/programming/projects/next-js-blog-with-comments/studio/node_modules/@sanity/core/lib/actions/start/startAction.js:160:41
    at Generator.next (<anonymous>)
    at asyncGeneratorStep (~/programming/projects/next-js-blog-with-comments/studio/node_modules/@sanity/core/lib/actions/start/startAction.js:42:103)
    at _next (~/programming/projects/next-js-blog-with-comments/studio/node_modules/@sanity/core/lib/actions/start/startAction.js:44:194)

[neilbradley]

Also seeing this error. I think it's these lines in the sanity.json causing the issue?

"api": { "projectId": "PLACEHOLDER_ENV_VARIABLES_WILL_HANDLE_FOR_US", "dataset": "PLACEHOLDER_ENV_VARIABLES_WILL_HANDLE_FOR_US" },

[neilbradley]

@TheAussieStew I found the workaround, in the sanity.json file change the following from:

  "api": {
    "projectId": "PLACEHOLDER_ENV_VARIABLES_WILL_HANDLE_FOR_US",
    "dataset": "PLACEHOLDER_ENV_VARIABLES_WILL_HANDLE_FOR_US"
  },

to:

  "api": {
    "projectId": "placeholder",
    "dataset": "placeholder"
  },

[markplewis]

I encountered the same error when running npm run start:sanity from the project root. The above workaround fixed it for me.

[benjaminkonopka]

@neilbradley your the man 👯 thanks for helping

[clytwynec]

It looks like there is an omitted step in the readme. It seems you have to add an env.development file like the following under the studio directory before running sanity start.

# For Studio
SANITY_STUDIO_API_PROJECT_ID="yourProjectId"
SANITY_STUDIO_API_DATASET="your_dataset_name"

See more: https://www.sanity.io/docs/studio-environment-variables#f5e9e3158896