SyntaxError: Unexpected token ':' — ajv code generation failure in @ui5/project 4.0.17
维护者通常 1 天内回复
@d3xter666 已经在做这个了。
开始于 2026年10月8日。
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Title:
SyntaxError: Unexpected token ':' — ajv code generation failure in @ui5/project 4.0.17
## Expected Behavior
Running `npm run int-test` (or any `fiori run` command) starts the local development server and opens the application without errors.
## Current Behavior
The process fails immediately with `SyntaxError: Unexpected token ':'` thrown inside `ajv`'s code generator when `@ui5/project` compiles its JSON schema for validating `ui5.yaml`. The server never starts.
## Steps to Reproduce the Issue
1. Clone a project using `@ui5/project` 4.0.17 (no `package-lock.json` in the repository)
2. Run `npm install` — this resolves `@ui5/[email protected]` which installs a nested `[email protected]` under `node_modules/@ui5/project/node_modules/ajv`
3. Run any `fiori run` command, e.g. `npm run int-test`
## Context
* UI5 Module Version (output of `ui5 --version` when using the CLI): **`4.0.70`**
* Node.js Version: **`v24.21.0`**
* npm Version: `11.19.0`
* OS/Platform: `Windows 11`
* Browser *(if relevant)*: `not relevant`
* Other information regarding your environment:
- `@ui5/project` version: `4.0.17`
- `ajv` version (nested in `@ui5/project/node_modules`): `8.20.0`
- A colleague using an older `@ui5/project` version (installed before 4.0.17 was published) does **not** experience this issue
- Workaround confirmed: deleting the nested `ajv` folder or downgrading it to `8.17.1` resolves the issue
## Log Output / Stack Trace
Process Failed With Error
Error Message:
Unexpected token ':'
Stack Trace:
SyntaxError: Unexpected token ':'
at new Function ()
at Ajv.compileSchema (node_modules/@ui5/project/node_modules/ajv/dist/compile/index.js:89:30)
at Ajv.inlineOrCompile (node_modules/@ui5/project/node_modules/ajv/dist/compile/index.js:148:47)
at Ajv.resolveRef (node_modules/@ui5/project/node_modules/ajv/dist/compile/index.js:142:46)
at Object.code (node_modules/@ui5/project/node_modules/ajv/dist/vocabularies/core/ref.js:19:47)
at keywordCode (node_modules/@ui5/project/node_modules/ajv/dist/compile/validate/index.js:464:13)
at CodeGen.code (node_modules/@ui5/project/node_modules/ajv/dist/compile/codegen/index.js:439:13)
at CodeGen.block (node_modules/@ui5/project/node_modules/ajv/dist/compile/codegen/index.js:568:18)
at schemaKeywords (node_modules/@ui5/project/node_modules/ajv/dist/compile/validate/index.js:185:13)
**Workaround:**
Deleting the nested `ajv` folder forces fallback to the top-level `[email protected]`, which works correctly:
```bash
# Windows (PowerShell)
Remove-Item -Recurse -Force "node_modules/@ui5/project/node_modules/ajv"
# Alternative
npm install --no-save --prefix node_modules/@ui5/project [email protected]
Note: both workarounds must be re-applied after every npm install.
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