clockworklabs/SpacetimeDB · error · TypeError

Table ${tableName} defines a schedule, but it does not have

Error message

Table ${tableName} defines a schedule, but it does not have a ScheduleAt column.

What it means

Error "Table ${tableName} defines a schedule, but it does not have a ScheduleAt column." thrown in clockworklabs/SpacetimeDB.

Source

Thrown at crates/bindings-typescript/src/server/schema.ts:177

      let tableName = knownTableName;
      if (tableName === undefined) {
        const tableNames = this.tableSourceNames.get(table);
        if (tableNames !== undefined && tableNames.length > 1) {
          throw new TypeError(
            'Schedule target table is registered more than once in this schema. Use a distinct table handle for each scheduled table.'
          );
        }
        tableName = tableNames?.[0];
      }
      if (tableName === undefined) {
        throw new TypeError(
          'Schedule target table is not part of this schema.'
        );
      }

      const scheduleAtCol = knownScheduleAtCol ?? table.scheduleAtCol;
      if (scheduleAtCol === undefined) {
        throw new TypeError(
          `Table ${tableName} defines a schedule, but it does not have a ScheduleAt column.`
        );
      }

      const functionName =
        knownFunctionName ??
        (reducer === undefined
          ? undefined
          : this.functionExports.get(reducer()));
      if (functionName === undefined) {
        const msg = `Table ${tableName} defines a schedule, but it seems like the associated function was not exported.`;
        throw new TypeError(msg);
      }
      const existingFunctionName = scheduledTables.get(tableName);
      if (existingFunctionName !== undefined) {
        throw new TypeError(
          `Table ${tableName} defines multiple schedules: ${existingFunctionName} and ${functionName}. A schedule table can only be used by one reducer or procedure.`
        );

View on GitHub (pinned to 524b4487d9)

When it happens

Trigger: Thrown at crates/bindings-typescript/src/server/schema.ts:177 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of clockworklabs/SpacetimeDB@524b4487d9 (2026-08-16). Data as JSON: /api/errors/1269a181f670a7c5. Report an issue: GitHub.