Bad arguments to + (The oparation + cannot accept the arguments: , [*empty-string*], [5]

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i have facing Bad arguments to + (The oparation + cannot accept the arguments: , [empty-string], [5] this problem how to solve this problem. i have make video on block so please check this video. video link

SCST
SCST720Ă—1440 68.8 KB

2

You might be adding string and integer

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If you have data something like this “5” in string and if you want to convert it to integer then you can use this extension:
com.anonymous.stringtoint.aix (4.6 KB)

You cant add an integer to a string. This extension will help you to convert the string to integer for example “5” to 5 only.

Java Code:

@SimpleFunction(description="To Convert String to Integer")
public int StringtoInt(String string){
int res= Integer.parseInt(string);
return res;
}
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how to add please tell me

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This is useless. Kodular, or other AI2 distribution, can convert String to Number class itself when needed.

2 Likes
6

Really :expressionless:
I didnt know that, so i always used this extension whenever it was needed to convert string to int

3 Likes
7

One of your addition operations is receiving an empty string.

Empty String - Nothing

You have to fix that

2 Likes
8

You have only a reading time of 8 minutes. First search the community. This has been asked before.

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@Pro_King Your problem is something like that:

Can you publish your blocks here so that we can look at the blocks and see where is error??

1 Like
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Don’t use all capitals. That is like shouting and we don’t shout here. Don’t do that again.

4 Likes
12

No need to shout…

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13

A few days ago I faced the same issue:
What I can say is, that there must be a math operation somewhere and the procedure wants to add 5 with , and this is not possible. This empty may be a variable, but the variable is not set yet or set wrong, something like this.

So search your math blocks where you have the block below and show this blocks here.
image

3 Likes
14

i added video link please check

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Please instead of posting videos post your blocks. Some where you are using an addition block. Isolate those blocks , download them as png and post them here

image

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blocks(1)
blocks(1)738Ă—152 10.7 KB

17

Get value is an empty string, most probably you are not getting any value from firebase. To check it just add a label and see

image

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image

Hope you did not forget to call the Firebase Value.

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19

bild

If no tag, empty string

2 Likes
20

yeah, so if no tag, “empty string” value. and if value is not number, get error message. this is expected.

OP can also use 0 instead of empty string, but will never receive an error message then.

1 Like