{"record":{"id":"af27ace6daf44699","repo":"tauri-apps/tauri","slug":"failed-to-define-permissions-for-plugin-e","errorCode":null,"errorMessage":"failed to define permissions for {plugin}: {e}","messagePattern":"failed to define permissions for (.+?): (.+?)","errorType":"panic","errorClass":null,"httpStatus":null,"severity":"error","filePath":"crates/tauri/build.rs","lineNumber":422,"sourceCode":"\"#,\n    );\n\n    let out_path = autogenerated.join(\"default.toml\");\n    write_if_changed(out_path, default_toml)\n      .unwrap_or_else(|_| panic!(\"unable to autogenerate default permissions\"));\n\n    let permissions = tauri_utils::acl::build::define_permissions(\n      &PathBuf::from(glob::Pattern::escape(\n        &permissions_out_dir.to_string_lossy(),\n      ))\n      .join(\"**\")\n      .join(\"*.toml\")\n      .to_string_lossy(),\n      &format!(\"tauri:{plugin}\"),\n      out_dir,\n      |_| true,\n    )\n    .unwrap_or_else(|e| panic!(\"failed to define permissions for {plugin}: {e}\"));\n\n    let docs_out_dir = Path::new(\"permissions\")\n      .join(plugin_directory_name)\n      .join(\"autogenerated\");\n    fs::create_dir_all(&docs_out_dir).expect(\"failed to create plugin documentation directory\");\n    tauri_utils::acl::build::generate_docs(\n      &permissions,\n      &docs_out_dir,\n      plugin.strip_prefix(\"tauri-plugin-\").unwrap_or(plugin),\n    )\n    .expect(\"failed to generate plugin documentation page\");\n    all_permissions.insert(plugin.to_string(), permissions);\n  }\n\n  let default_permissions = define_default_permission_set(out_dir);\n  all_permissions.insert(\"core\".to_string(), default_permissions);\n\n  all_permissions","sourceCodeStart":404,"sourceCodeEnd":440,"githubUrl":"https://github.com/tauri-apps/tauri/blob/460ec35447493200d64290dd7f015d5a91d0fd58/crates/tauri/build.rs#L404-L440","documentation":"`define_permissions` parses all `*.toml` permission files of a plugin via `tauri_utils::acl::build::define_permissions`. Any parse/validation error in those files — or an I/O problem globbing them — surfaces as this panic. It means at least one permission definition file is malformed or semantically invalid.","triggerScenarios":"A plugin's `permissions/**/*.toml` contains invalid TOML, an unknown default/permission reference, an invalid identifier, or schema that fails ACL validation when `define_permissions` runs during the plugin (or app with inlined plugins) build.","commonSituations":"Hand-editing autogenerated permission TOMLs; using a plugin built for an older tauri-utils ACL format; typos in `identifier` fields; referencing a permission that no longer exists after a plugin upgrade.","solutions":["Read the wrapped `{e}` in the message — it names the exact file and line of the TOML/schema problem — and fix that permission file.","Restore autogenerated files: they are managed by build scripts, so don't hand-edit `permissions/autogenerated/*`.","Update the plugin (and tauri crates) to matching versions so the ACL format is consistent.","Run `cargo clean` for the plugin to force regeneration of autogenerated permissions."],"exampleFix":"// before (permissions/my-perm.toml)\n[default]\nidentifier = \"my perm\" // invalid identifier chars\n// after\n[default]\nidentifier = \"my-perm\"","handlingStrategy":"validation","validationCode":"# lint plugin permission TOMLs before building\nfor f in permissions/**/*.toml; do python3 -c \"import tomllib,sys; tomllib.load(open(sys.argv[1],'rb'))\" \"$f\" || echo \"bad toml: $f\"; done","typeGuard":null,"tryCatchPattern":null,"preventionTips":["Never hand-edit files under permissions/autogenerated/","Follow the ACL identifier rules (lowercase kebab, plugin:prefix naming)","Update plugins and tauri crates together to avoid ACL format drift","Read the wrapped error `e` — it pinpoints the failing file and line"],"tags":["toml","acl","build","plugins"],"backgroundTag":"schema-validation-failed","analyzedSha":"460ec35447493200d64290dd7f015d5a91d0fd58","analyzedAt":"2026-09-18T23:55:51.277Z","contentChangedAt":"2026-09-18T23:55:51.277Z","schemaVersion":2},"datasetVersion":"2026-09-23T08:17:48.524Z"}