小编Mah*_*ney的帖子

我正在尝试添加以下依赖项：

  firebase_auth: ^0.14.0+5
  google_sign_in: ^4.0.7
  cloud_firestore: ^0.12.9+5
  fluttertoast: ^3.1.3
  image_picker: ^0.6.1+8
  shared_preferences: ^0.5.3+4
  firebase_storage: ^3.0.6
  cached_network_image: 2.0.0-rc.1
  firebase_messaging: 6.0.13
  flutter_local_notifications: 1.4.0
  photo_view: ^0.5.0

我发现了这个错误：

D8: Cannot fit requested classes in a single dex file (# methods: 85948 > 65536)
com.android.builder.dexing.DexArchiveMergerException: Error while merging dex archives:      
The number of method references in a .dex file cannot exceed 64K.       
Learn how to resolve this issue at https://developer.android.com/tools/building/multidex.html
        at com.android.builder.dexing.D8DexArchiveMerger.getExceptionToRethrow(D8DexArchiveMerger.java:131)
        at com.android.builder.dexing.D8DexArchiveMerger.mergeDexArchives(D8DexArchiveMerger.java:118)
        at com.android.build.gradle.internal.transforms.DexMergerTransformCallable.call(DexMergerTransformCallable.java:102)
        at com.android.build.gradle.internal.tasks.DexMergingTaskRunnable.run(DexMergingTask.kt:444)
        at com.android.build.gradle.internal.tasks.Workers$ActionFacade.run(Workers.kt:335)
        at org.gradle.workers.internal.AdapterWorkAction.execute(AdapterWorkAction.java:50)
        at org.gradle.workers.internal.DefaultWorkerServer.execute(DefaultWorkerServer.java:47)
        at …

我正在尝试将.txt文件转换为excel 文件，但遇到以下错误：

Traceback (most recent call last):
  File "C:/Users/haroo501/PycharmProjects/MyLiveRobo/convert_txt_csv.py", line 13, in <module>
    dataf_umts_txt_df.to_excel('umtsrelation_mnm.xlsx', 'Sheet1', index=False)
  File "C:\Users\haroo501\PycharmProjects\MyLiveRobo\venv\lib\site-packages\pandas\core\generic.py", line 2250, in to_excel
    formatter.write(
  File "C:\Users\haroo501\PycharmProjects\MyLiveRobo\venv\lib\site-packages\pandas\io\formats\excel.py", line 721, in write
    raise ValueError(
ValueError: This sheet is too large! Your sheet size is: 1220054, 3 Max sheet size is: 1048576, 16384

Process finished with exit code 1

这是我的代码：

import pandas as pd
import os

hua_umts_dataf_rel_txt = 'umtsrelation_mnm.txt'
dataf_umts_txt_df = pd.read_csv(hua_umts_dataf_rel_txt, sep=';')
hua_umts_dataf_rel_df_column_index = list(dataf_umts_txt_df.columns)
dataf_umts_txt_df.reset_index(inplace=True)
dataf_umts_txt_df.drop(columns=dataf_umts_txt_df.columns[-1], inplace=True)
hua_umts_dataf_rel_df_column_index = dict(zip(list(dataf_umts_txt_df.columns), …

当我运行代码时，我DEBUG Console在如下所示的错误中发现了这个错误：

Restarted application in 2,804ms.

[38;5;248m???????? Exception caught by rendering library ?????????????????????????????????[39;49m
[38;5;244mThe following assertion was thrown during performLayout():[39;49m
Leading widget consumes entire tile width. Please use a sized widget.
'package:flutter/src/material/list_tile.dart':
Failed assertion: line 1353 pos 7: 'tileWidth != leadingSize.width'


[38;5;248mEither the assertion indicates an error in the framework itself, or we should provide substantially more information in this error message to help you determine and fix the underlying cause.
In either case, please report this assertion …

我有一个简单的数据库，如下图所示：

和查询看起来像：

SELECT 
       [Date]
      ,[eNodeBName]
      ,[Downlinkbandwidth]
      ,[DownlinkEARFCN]
      ,[CellName]
      ,[LocalCellId]
      ,[PhysicalcellID]
      ,[LRRCConnReqAtt]
      ,[RRCSetupSuccessRate]
      ,[InterFreqSuccessRate4G]
      ,[IntraRATHOSucccessRate]
      ,[IntraFreqSuccessRate4G]
      ,[CellDLMaxThroughputMbps]
      ,[CellDownlinkAverageThroughputMbps]
  FROM [myDB].[dbo].[input]

现在我需要创建一个交互式图表，该图表取决于日期选择器和下拉列表等输入。

由于这是我创建的示例 GUI，用于绘制图表抛出此输入，如下图所示：

现在我正在根据以下列名称创建图表，如下图所示：

因为这是相关的查询，如下所示：

SELECT 
       [Date]
      ,[CellName]
      ,[LRRCConnReqAtt]
      ,[RRCSetupSuccessRate]
      ,[InterFreqSuccessRate4G]
      ,[IntraRATHOSucccessRate]
      ,[IntraFreqSuccessRate4G]
      ,[CellDLMaxThroughputMbps]
      ,[CellDownlinkAverageThroughputMbps]
  FROM [myDB].[dbo].[input]

所以现在 X 轴应该是Date列，与下面的列相关的 y 轴是KPI列：

SELECT 
       [LRRCConnReqAtt]
      ,[RRCSetupSuccessRate]
      ,[InterFreqSuccessRate4G]
      ,[IntraRATHOSucccessRate]
      ,[IntraFreqSuccessRate4G]
      ,[CellDLMaxThroughputMbps]
      ,[CellDownlinkAverageThroughputMbps]
  FROM [myDB].[dbo].[input]

所以现在我们有一个包含唯一值的唯一列被称为CellName，这个单元格名称我想根据日期列和 KPI 列为这个唯一值创建一个简单的图表。

例如，我想根据 12 月 27 日至 1 月 9 日的数据显示CellNameKPI的某个= 2002334的折线图LRRCConnReqAtt。所以我需要一个如下图所示的图表，这是一个在 Excel 中创建的示例图表。

这是我的代码：

import dash
import …