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pandas concat dictionary problem with too many indices

I am trying to concat a bunch of data frames which I placed into a dictionary. The following is my code:

for file in filepath:   
    df[i] = pd.read_csv(file)
    df[i]['Date'] = pd.to_datetime(df[i]['Date'].astype(str), format='%%m/%%d/%%Y')        
    i += 1
    count += 1
    print(file)
    
new = pd.concat([d.set_index('Date') for d in df.values()], axis=1, ignore_index=True)

I get the following error: Shape of passed values is (1924, 55), indices imply (1904, 55) is there a way to avoid this?

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Answer

Based on the comments, what you want is to join (merge) the dataframes not concat them. Without having the dfs handy (for your next question review this please) I cannot test the below, but roughly this is what you want to do

new = None
for file in filepath:   
    df = pd.read_csv(file)
    df['Date'] = pd.to_datetime(df['Date'].astype(str), format='%%m/%%d/%%Y')        
    df.set_index('Date', inplace = True)
    if new is None:
        new = df
    else:
        new = new.join(df)

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