下表列出 Looker 中顯示的一些常見錯誤訊息、根本原因和發生位置,以及疑難排解資源。錯誤會按照向 Looker 支援團隊回報的頻率降序排列,最上方是支援要求數量最多的錯誤。
「位置」欄會指出錯誤訊息在 Looker 中的顯示位置,並包含下列選項 (部分錯誤可能會出現在產品中的多個位置):
IDE = LookML 驗證工具/IDE
Ex = 探索
SQL = SQL Runner
LD = LookML 資訊主頁
D = 資訊主頁
S = Schedules
| 錯誤訊息 | 位置 | 可能原因 | 疑難排解資源 | 
|---|---|---|---|
| Variable not found (?). | IDE | 
 | |
| Inaccessible view (?). (?) is not accessible in explore (?). Check for missing joins in explore (?). | IDE | 
 | |
| Unknown or inaccessible field (?). Check for typos or append a timeframe to the name if the field is type time. | IDE | 錯誤 Inaccessible view (?). (?) is not accessible in explore (?). Check for missing joins in explore (?).的任何可能原因都適用,此外,以下原因也可能導致此錯誤:
 | |
| Unknown view (?). | IDE Ex SQL | 
 | |
| Unknown view (?). View does not exist in model (?). Check for typos or missing include statements. | IDE Ex SQL | 
 | |
| Unknown field (?) in filter | IDE | 
 | |
| Measures with Looker aggregations (sum, average, min, max, list types) may not reference other measures. | IDE | 在另一個匯總類型指標的 SQL 定義中參照指標。 | |
| Unknown view (?). View (?) does not exist in model (?). Check for typos or missing include statements in (?). | IDE | 模型檔案中未包含檢視區塊,或包含檢視區塊但拼字錯誤。 | |
| Can't construct persistent derived table (?), connection (?) could not be registered | IDE Ex | 
 | |
| Unknown or excluded suggest_dimension (?) in field (?) | IDE | 
 | |
| A view named (?) has been defined multiple times. Each view in a model must have a unique name. | IDE | 相同模型中參照的檢視表名稱相同,包括匯入專案的檢視表。模型中的檢視區塊名稱不得重複。 | view參數參考資料 | 
| This include does not match any files | IDE | 
 | |
| SQL Dialect does not support Symmetric Aggregates with percentiles, field ignored. | Ex | 資料庫方言不支援使用對稱匯總的 type: median或type: percentile測量值。 | |
| Cannot use native derived table (?) with bind_all_filters outside of its source explore (?) | IDE Ex | 含有 bind_all_filters參數的原生衍生資料表會與一或多個「探索」聯結,但不會與explore_source參數中定義的「探索」聯結。 | 使用 bind_all_filters | 
| Measures of type count do not use the sql parameter. Use count_distinct to count by something other than the primary key, or remove the sql parameter. | IDE | sql參數用於type: count的測量值。計數類型指標會依據檢視區塊檔案中宣告的主鍵執行計數,不需要sql參數。 | |
| An explore named (?) has been defined multiple times. Each explore in a model must have a unique name. | IDE LD | 
 | |
| Unknown view '(?)' --> Did you '- include: (?)' in (?).model.lookml? | IDE | 
 | 
 | 
| Unknown field '(?)' | IDE Ex | 
 | |
| Cannot use (?) as access filter since any user can edit their own value. | Ex | 在「探索」的 access_filter參數中,使用「使用者屬性」,並將「使用者存取權」選項設為「編輯」。 | |
| label_from_parameter of (?) must refer to a parameter. | IDE Ex | 
 | |
| Cannot use user-editable attribute (?) for access_grant (?) | IDE Ex | 模型檔案的 access_grant參數中,使用「使用者存取權」選項設為「編輯」的使用者屬性。 | |
| datagroup (?) has a sql_trigger. This is not allowed in models with a parameterized connection. | IDE | 資料庫連線使用使用者屬性做為資料庫登入憑證,且 PDT 覆寫欄未針對 PDT 程序設定個別資料庫使用者。 | |
| relationship missing, assumed to be many_to_one. | IDE | 未定義聯結的 relationship。如未指定relationship,Looker 預設會採用many-to-one關係。 | relationship參數參考資料 | 
| No distribution_style specified in persistent derived table (?). Using default distribution style (?). | IDE | Redshift 連線 PDT 的 derived_table定義中未指定distribution_style參數。如未指定distribution_style,Looker 預設為ALL。 | distribution_style參數參考資料 | 
| always_filter: unknown filter field '(?)' | IDE | 
 | |
| The location field type requires both sql_latitude and sql_longitude. | IDE | type: location欄位缺少sql_latitude或sql_longitude子參數。地點類型欄位必須同時提供這兩項資訊。 | location欄位類型參考資料 | 
| Missing required sql_step in create_process of derived table '(?)'. | IDE | 
 | create_process參數參考資料 | 
| Can't construct aggregate table (?), temporary schema for (?) is unset. | IDE Ex | 「管理」面板的「連線設定」頁面中,連線未設定「永久衍生資料表」,且/或「暫時資料庫」設定中未指定暫時資料庫結構定義。 | |
| Can't construct aggregate table (?), connection (?) could not be registered. | IDE Ex | 連線的「連線設定」頁面 (位於「管理」面板) 未設定「暫時資料庫」,或 Looker 沒有適當權限,無法存取「暫時資料庫」設定中指定的暫時資料庫。 | |
| Unknown view (?) referenced by explore (?) | IDE | 
 | |
| The location field type does not use the sql parameter. Please use sql_latitude and sql_longitude instead. | IDE | sql參數用於type: location的欄位。地點類型欄位需要sql_latitude和sql_longitude子參數,而非sql參數。 | location欄位類型參考資料 | 
| A list_field must be defined for measures of type list. | IDE Ex | 如要從欄位產生清單,必須為 type: list的指標指定欄位。 | list欄位類型參考資料 | 
| Query failed with unexpected exception (?) | IDE Ex SQL LD D S | 
 | |
| Looker is having trouble connecting to your database. | Ex SQL | 連線的連線集區上限已達,且連線集區逾時時間間隔已過,因此佇列查詢已逾時。 | |
| SQL Error in incremental PDT: Query execution failed | Ex D S | 以 SQL 為基礎的漸進式 PDT 參照的一或多個資料表,其基礎結構定義已變更。 | 增量 PDT 在結構定義變更後無法建構 | 
| Missing dates/values for '(?)' were not filled. | Ex | 
 | 填入遺漏的日期和值 | 
| filters: ` is not supported for measures of non-aggregate type '(?)' | IDE Ex | filters參數用於下列以外的任何測量類型:count、sum、average和count_distinct。 | |
| Unknown source explore (?) in lookml test (?) declaration. | IDE | 
 | |
| filter_expression: is not supported for measures of non-aggregate type '(?)' | IDE Ex | filters_expression參數用於下列以外的任何指標類型:count、sum、average或count_distinct。 | |
| Field references an aggregate but is specified as a dimension. If you want to use aggregations such as sum, average, count, use a measure type instead. | IDE Ex | 維度會在 sql參數中參照指標或其他匯總 | |
| Cannot specify both sql_table_name and derived_table for view (?) | IDE | 檢視畫面同時定義了 sql_table_name和derived_table參數。一個檢視區塊只能參照一個資料表,也就是資料庫連線中具有sql_table_name的現有結構定義,或是具有  的新資料表。derived_table | |
| Persistent Native Derived Table for view (?) has an explore source (?) that has access filters. Persisting this table may result in unexpected behavior. | IDE | 持續性 NDT 是以含有 access_filter參數的「探索」為基礎,該參數會參照使用者屬性。 | |
| Unknown or unexpected parameter "(?)" in (?). | IDE | 
 | |
| Could not find the constant | IDE | 常數是從匯入專案參照匯入專案,且只在匯入專案中定義。常數只能在定義常數的專案中參照。您需要在資訊清單檔案中重新定義常數。 | 在匯入專案的檔案中使用常數 | 
| Multiple primary key definitions for view '(?)': '(?)' and '(?)' | IDE | 檢視檔案中存在多個主鍵。指定為主鍵的維度超過一個 (使用 primary_key: yes),或擴充檢視區塊指定新的維度做為主鍵 (使用primary_key: yes)。 | |
| Persistent Native Derived Table for view (?) references user attributes. Persisting this table may result in unexpected behavior. | IDE | 持續性 NDT 或匯總認知度表格是以 explore為基礎,並包含參照使用者屬性的access_filter或sql_always_where參數。 | |
| No map layer named (?) is defined. Must be one of countries, uk_postcode_areas, us_counties_fips, us_states, us_zipcode_tabulation_areas | IDE | 如果欄位檢視畫面中所有模型都沒有定義地圖圖層,維度就會參照 map_layer_name的地圖圖層。舉例來說,某個檢視區塊包含在多個模型中,但地圖圖層只在一個模型中定義。 | |
| Persistent derived table (?) should include at least one index | IDE | PDT 或匯總資料表定義包含 index,但未指定 PDT 或匯總資料表資料欄。 | |
| The x database encountered an error while running this query. | Ex SQL | 資料庫找不到欄位 sql參數參照的資料欄。可能原因如下:
 | Looker 中常見的 SQL 錯誤疑難排解提示 (社群貼文) | 
| Render job (?) failed [orphaned job] | S | 排定工作執行時,Looker 執行個體無法使用。這可能發生在版本更新和排定的維護作業期間。 | Looker 代管服務的 Google 維護政策 |